User:Somoza/Test

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Publications

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→ Arrows indicate 30 most cited publications.

Journal links may require subscription (DOI-Digital object identifier).

  1. → F. Metz, J. Friedrich and G. Hohlneicher. (1972). "What Is Leading Mechanism for Nonradiative Decay of Lowest Triplet-State of Aromatic-Hydrocarbons". Chemical Physics Letters. 16: 353–358.[1] DOI Link
  2. S. Friedrich, R. Griebel, G. Hohlneicher, F. Metz and S. Schneider. (1973). "Description of the radiative properties of unsaturated molecules containing a triple bond based on a quasi pi-model". Chemical Physics. 1: 319–329.{{cite journal}}: CS1 maint: multiple names: authors list (link) [2] DOI Link
  3. S. Friedrich, R. Griebel, G. Hohlneicher, F. Metz and S. Schneider. (1973). "Calculation of the total decay of ethynylbenzene and some of its deuterated derivatives". Chemical Physics. 1: 330–334.{{cite journal}}: CS1 maint: multiple names: authors list (link) [3] DOI Link
  4. J. Friedrich, F. Metz and F. Dörr. (1974). "Second-Order Herzberg-Teller Coupling in Heavy-Atom Aromates". Berichte Der Bunsen-Gesellschaft-Physical Chemistry Chemical Physics. 78: 1214–1221.
  5. → J. Friedrich, F. Metz and F. Dörr. (1975). "What Is Influence of a Heavy-Atom on Decay Mechanisms of Lowest Triplet-State of Aromatic-Hydrocarbons". Molecular Physics. 30: 289–312.
  6. G. Flatscher, K. Fritz and J. Friedrich. (1976). "Site Selection Spectroscopy in Temperature-Range 2K and 300K". Zeitschrift Fur Naturforschung Section a-a Journal of Physical Sciences. 31: 1220–1227.
  7. J. Friedrich, G. Weinzierl and F. Dörr. (1976). "External Spin-Orbit-Coupling in Aromatic-Molecules". Zeitschrift Fur Naturforschung Section a-a Journal of Physical Sciences. 31: 748–753.
  8. J. Friedrich, J. Vogel, W. Windhager and F. Dörr. (1976). "Deuterium-Isotope Effect in Radiative Triplet Decay of Heavy-Atom Substituted Aromatic-Molecules". Zeitschrift Fur Naturforschung Section a-a Journal of Physical Sciences. 31: 61–70.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  9. J. Friedrich and G. Flatscher. (1977). "Study on Nonhomogeneous Broadening of Optical Lines". Berichte Der Bunsen-Gesellschaft-Physical Chemistry Chemical Physics. 81: 1102–1102.
  10. G. Flatscher and J. Friedrich. (1977). "Site Selective Impurity Phonon Coupling in Glassy Solutions". Chemical Physics Letters. 50: 32–35.[4] DOI Link
  11. J. Friedrich, G. Flatscher and F. Dörr. (1978). "Influence of Excess Energy on Low-Temperature Fluorescence from Inhomogenously Broadened Lines in Anthracene". Berichte Der Bunsen-Gesellschaft-Physical Chemistry Chemical Physics. 82: 392–396.
  12. G. Weinzierl, J. Friedrich and R. Griebel. (1979). "Heavy-Atom Isotope and Deuterium-Isotope Effect in Bis-(Phenylethinyl)-Mercury". Zeitschrift Fur Naturforschung Section a-a Journal of Physical Sciences. 34: 493–497.
  13. J. Friedrich and D. Haarer. (1980). "Phonon Selective Low-Temperature Photochemistry in Alcohol Glasses". Chemical Physics Letters. 74: 503–506. [5] DOI Link
  14. → J. Friedrich, J. D. Swalen and D. Haarer. (1980). "Electron-Phonon Coupling in Amorphous Organic Host Materials as Investigated by Photochemical Hole Burning". Journal of Chemical Physics. 73: 705–711. [6] DOI Link
  15. D. Haarer and J. Friedrich. (1980). "Photochemical Hole Burning as a Means for Studying Fast Proton-Transfer Processes and Molecule-Matrix Interactions". Journal of the Optical Society of America. 70: 584–584.
  16. D. Haarer, J. D. Swalen and J. Friedrich. (1980). "Electron-Phonon Coupling in Amorphous Organic Host Materials as Investigated by Photochemical Hole Burning". Bulletin of the American Physical Society. 25: 419–419.
  17. G. Flatscher and J. Friedrich. (1980). "Position-Dependent Heavy-Atom Effect in the Subrates of the Lowest Triplet-State of Dichloronaphthalenes". Chemical Physics. 49: 311–319. [7] DOI Link
  18. → B. Zickendraht-Wendelstadt, J. Friedrich and W. Rudiger. (1980). "Spectral Characterization of Monomeric C-Phycoerythrin from Pseudanabaena W-1173 and Its Alpha-Subunits and Beta-Subunits - Energy-Transfer in Isolated Subunits and C-Phycoerythrin". Photochemistry and Photobiology. 31: 367–376.
  19. J. Friedrich and D. Haarer. (1980). "Photochemical hole burning as a means for studying fast proton transfer processes and molecule-matrix interactions". Journal of the Optical Society of America. 70: 584.
  20. J. Friedrich and D. Haarer. (1980). "Selective Photochemistry to Produce Narrow (Phononless) Photochemical Holes for Optical Storage". IBM Technical Disclosure Bulletin. 23: 2107.
  21. → J. Friedrich, H. Scheer, B. Zickendraht-Wendelstadt and D. Haarer. (1981). "High-Resolution Optical Studies on C-Phycocyanin Via Photochemical Hole Burning". Journal of the American Chemical Society. 103: 1030–1035.{{cite journal}}: CS1 maint: multiple names: authors list (link) [8] DOI Link
  22. → J. Friedrich, H. Scheer, B. Zickendraht-Wendelstadt and D. Haarer. (1981). "Photochemical Hole Burning - a Means to Observe High-Resolution Optical Structures in Phycoerythrin". Journal of Chemical Physics. 74: 2260–2266.{{cite journal}}: CS1 maint: multiple names: authors list (link) [9] DOI Link
  23. J. Friedrich, H. Scheer, B. Zickendraht-Wendelstadt and D. Haarer. (1981). "Energy-Transfer in Phycobiliproteins as Studied by Photochemical Hole Burning". Journal of Luminescence. 24–5: 815–817.{{cite journal}}: CS1 maint: multiple names: authors list (link) [10] DOI Link
  24. J. Brand, G. Weinzierl and J. Friedrich. (1981). "Single-Mode Electron-Phonon Coupling and Optical Lineshape Analysis on a Naphthalene X-Trap System". Chemical Physics Letters. 84: 197–200. [11]
  25. G. Weinzierl and J. Friedrich. (1981). "Investigation of Thermal Detrapping in a Naphthalene Crystal". Chemical Physics Letters. 83: 204–206. [12] DOI Link
  26. G. Weinzierl and J. Friedrich. (1981). "Selective External Heavy-Atom Effect on the Dynamics of the Isolated Triplet Sublevels of Naphthalene X-Traps". Chemical Physics Letters. 80: 55–59. [13] DOI Link
  27. G. Weinzierl and J. Friedrich. (1981). "Heavy-Atom Effect in the Electron-Phonon Coupling of Naphthalene X-Traps". Chemical Physics Letters. 77: 139–142. [14] DOI Link
  28. → J. Friedrich, H. Wolfrum and D. Haarer. (1982). "Photochemical Holes - a Spectral Probe of the Amorphous State in the Optical Domain". Journal of Chemical Physics. 77: 2309–2316. [15] DOI Link
  29. → A. R. Gutierrez, J. Friedrich, D. Haarer and H. Wolfrum. (1982). "Multiple Photochemical Hole Burning in Organic Glasses and Polymers - Spectroscopy and Storage Aspects". IBM Journal of Research and Development. 26: 198–208.{{cite journal}}: CS1 maint: multiple names: authors list (link) [16]
  30. → J. Friedrich and D. Haarer. (1982). "Transient Features of Optical Bleaching as Studied by Photochemical Hole Burning and Fluorescence Line Narrowing". Journal of Chemical Physics. 76: 61–68. [17] DOI Link
  31. J. Friedrich and D. Haarer. (1982). "Tunneling and Relaxation Processes in Organic Glasses as Studied by Photochemical Hole Burning". Applied Physics B-Photophysics and Laser Chemistry. 28: 262–263.
  32. → J. Friedrich and D. Haarer. (1983). "Correlation Effects in Vibrational Hole Burning". Journal of Chemical Physics. 79: 1612–1615. [18] DOI Link
  33. J. Friedrich, D. Haarer and R. Silbey. (1983). "Reversible and Irreversible Line Broadening of Photochemical Holes in Amorphous Solids". Chemical Physics Letters. 95: 119–123. [19] DOI Link
  34. D. Haarer and J. Friedrich. (1983). "Photochemical Hole Burning in Glasses, Polymers and Biopolymers". Laser Chemistry: 1097.
  35. J. Friedrich and D. Haarer. (1984). "Burning Holes Photochemically". Umschau. 84: 703–705.
  36. → W. Breinl, J. Friedrich and D. Haarer. (1984). "Spectral Diffusion of a Photochemical Proton-Transfer System in an Amorphous Organic Host: Quinizarin in Alcohol Glass". Journal of Chemical Physics. 81: 3915–3921. [20] DOI Link
  37. → W. Breinl, J. Friedrich and D. Haarer. (1984). "Logarithmic Decay of Photochemically Induced 2-Level Systems in an Organic Glass". Chemical Physics Letters. 106: 487–490. [21] DOI Link
  38. W. Breinl, J. Friedrich and D. Haarer. (1984). "Ground-State Tunneling and Optical Spectral Diffusion in Organic Glasses". Journal of Chemical Physics. 80: 3496–3497. [22] DOI Link
  39. J. Friedrich and D. Haarer. (1984). "Photochemisches Lochbrennen und optiscbe Relaxationsspektroskopie in Polymeren und Glasern". Angewandte Chemie. 96–123. [23]
  40. → J. Friedrich and D. Haarer. (1984). "Photochemical Hole Burning - a Spectroscopic Study of Relaxation Processes in Polymers and Glasses". Angewandte Chemie-International Edition in English. 23: 113–140. [24]
  41. W. Breinl, J. Friedrich and D. Haarer. (1984). "Photochemisch induzierte Prozesse auf logarithmischen Zeitskalen". Photoreaktive Festkörper: 177.
  42. W. Köhler and J. Friedrich. (1984). "Photochemie mit polarisiertem Licht". Photoreaktive Festkörper.
  43. J. Friedrich. (1984). "Photochemical hole burning in polymers and glasses". Trends in Physics 1984: Proceedings of the 6th General Conference of the European Physical Society: 555.
  44. J. Friedrich and D. Haarer. (1985). "Spectral Diffusion and Relaxation of Photochemical Holes on Logarithmic Time Scales". Journal De Physique. 46: 357–361.
  45. J. Friedrich and A. Blumen. (1985). "Patterns of Relaxation in Disordered Materials". Physical Review B. 32: 1434–1435. [25]
  46. W. Köhler, W. Breinl and J. Friedrich. (1985). "Laser Photochemistry with Polarized-Light in Low-Temperature Glasses". Journal of Physical Chemistry. 89: 2473–2477. [26] DOI Link
  47. W. Köhler, W. Breinl and J. Friedrich. (1985). "Investigation of Polarization Diffusion and Relaxation Dynamics of Low-Temperature Glasses". Journal of Chemical Physics. 82: 2935–2938. [27] DOI Link
  48. G. Gradl and J. Friedrich. (1985). "Investigation of Inhomogeneous Line Broadening of ODMR Transitions in Doped Organic Glasses". Chemical Physics Letters. 114: 543–546. [28] DOI Link
  49. J. Friedrich and D. Haarer. (1985). "Spektroskopie organischer Gläser und Polymere mit Anwendungen auf dem Bereich optischer Datenspeicher". Phys. Blätter. 41: 363.
  50. W. Breinl, J. Friedrich and D. Haarer. (1986). "Linewidth Study of the Dye Molecule Quinizarin in Solid Alcohol Glasses". Physical Review B. 34: 7271–7277. [29]
  51. G. Gradl, J. Friedrich and B. E. Kohler. (1986). "Influence of Phonons on Optically Detected Magnetic Resonances of Aromatic Molecules in Amorphous Hosts". Journal of Chemical Physics. 84: 2079–2083. [30] DOI Link
  52. J. Friedrich and D. Haarer. (1986). "Structural Relaxation Processes in Polymers and Glasses as Studied by High Resolution Optical Spectroscopy". Optical Spectroscopy in Glasses: 149.
  53. J. Friedrich and J. F. Rabolt. (1987). "Structural Studies of Phase-Transitions in Poly(Di-Normal-Alkylsiloxanes) .1. Poly(Dimethylsiloxane) and Poly(Diethylsiloxane)". Macromolecules. 20: 1975–1979.
  54. → W. Köhler and J. Friedrich. (1987). "Distribution of Barrier Heights in Amorphous Organic Materials". Physical Review Letters. 59: 2199–2202.
  55. W. Köhler and J. Friedrich. (1987). "Configurational Dynamics of Doped Low-Temperature Glasses and Polymers". Berichte Der Bunsen-Gesellschaft-Physical Chemistry Chemical Physics. 91: 858–863.
  56. G. Gradl and J. Friedrich. (1987). "Electron-Spin-Lattice Relaxation of Photoexcited Triplet-States in Disordered Organic-Solids". Physical Review B. 35: 4915–4921.
  57. J. Meiler and J. Friedrich. (1987). "Dispersive Relaxation and Spectral Diffusion in a Doped Alcohol Glass - the Influence of Sample Aging". Chemical Physics Letters. 134: 263–267. DOI Link
  58. W. Köhler and J. Friedrich. (1987). "Comments on the Determination of Dispersion in the Kinetics of Hole-Burning Reactions". Chemical Physics Letters. 134: 200–202. DOI Link
  59. → W. Köhler, J. Meiler and J. Friedrich. (1987). "Tunneling Dynamics of Doped Organic Low-Temperature Glasses as Probed by a Photophysical Hole-Burning System". Physical Review B. 35: 4031–4037.
  60. W. Köhler, J. Meiler and J. Friedrich. (1987). "Structural relaxation processes of amorphous organic low temperature glasses". Dynamics of Molecular Crystals: 345.
  61. J. Friedrich and W. Köhler. (1987). "A spectral hole burning study of relaxation phenomena in glasses". Proceedings of the 1987 International Conference in Luminescence, Beijing, China: 447.
  62. W. Köhler and J. Friedrich. (1988). "Irreversible Features of Thermal Line Broadening in Glasses as Probed by Persistent Optical Holes". Europhysics Letters. 7: 517–522.
  63. G. Kaiser and J. Friedrich. (1988). "Heavy-Atom-Induced Spin-Lattice Relaxation in the Photoexcited Triplet-State of Naphthalene". Journal of Physical Chemistry. 92: 5930–5933. DOI Link
  64. → R. Hirschmann, W. Kohler, J. Friedrich and E. Daltrozzo. (1988). "Hole Burning in Excitonic States of Long-Chain Molecular Aggregates". Chemical Physics Letters. 151: 60–64.{{cite journal}}: CS1 maint: multiple names: authors list (link) DOI Link
  65. W. Köhler, J. Friedrich, R. Fischer and H. Scheer. (1988). "High-Resolution Frequency Selective Photochemistry of Phycobilisomes at Cryogenic Temperatures". Journal of Chemical Physics. 89: 871–874.{{cite journal}}: CS1 maint: multiple names: authors list (link) DOI Link
  66. W. Köhler and J. Friedrich. (1988). "Probing of Extremely Low Configurational Barriers in an Organic Glass". Journal of Chemical Physics. 88: 6655–6657. DOI Link
  67. W. Köhler, J. Friedrich, R. Fischer and H. Scheer. (1988). "An Optical Linewidth Study of a Chromoprotein - C-Phycocyanin in a Low-Temperature Glass". Chemical Physics Letters. 146: 280–282.{{cite journal}}: CS1 maint: multiple names: authors list (link) DOI Link
  68. W. Breinl and J. Friedrich. (1988). "Influence of Concentration on the Linewidth of Spectral Holes in a Tetracene-Doped Alcohol Glass". Chemical Physics Letters. 145: 107–110. DOI Link
  69. W. Köhler, J. Friedrich, R. Fischer and H. Scheer. (1988). "Site-Selective Spectroscopy and Level Ordering in C-Phycocyanine". Chemical Physics Letters. 143: 169–173.{{cite journal}}: CS1 maint: multiple names: authors list (link)DOI Link
  70. W. Köhler, J. Friedrich and H. Scheer. (1988). "Conformational Barriers in Low-Temperature Proteins and Glasses". Physical Review A. 37: 660–662.
  71. J. Friedrich and D. Haarer. (1988). "Evolution of Spectral Holes on Logarithmic Time Scale". Unconventional Photoactive Solids: 57.
  72. W. Köhler, J. Friedrich, R. Fischer and H. Scheer. (1988). "Low temperature spectroscopy of antenna pigments". Photosynthetic Light Harvesting Complexes: 293.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  73. W. Köhler and J. Friedrich. (1988). "Slow relaxation of organic low temperature glasses". Time dependent effects in disordered solids: 301.
  74. W. Köhler and J. Friedrich. (1988). "Time- and temperature dependent relaxation of spectral holes". Proceedings of the Academy of Sciences of the Estonian SSR on Methods of Laser Spectroscopy of Molecules in Low Temperature Media: 129.
  75. → W. Köhler, J. Zollfrank and J. Friedrich. (1989). "Thermal Irreversibility in Optically Labeled Low-Temperature Glasses". Physical Review B. 39: 5414–5424.
  76. J. Zollfrank, J. Friedrich and T. Tani. (1989). "Structural Relaxation Patterns of an Optically Labeled Polymer at Cryogenic Temperatures". Polymer. 30: 231–236.
  77. W. Köhler and J. Friedrich. (1989). "Probing of Conformational Relaxation Processes of Proteins by Frequency Labeling of Optical States". Journal of Chemical Physics. 90: 1270–1273. DOI Link
  78. J. Friedrich. (1989). "Optical Hole Burning and Thermal Irreversibility of Non-Ergodic Systems - Polymers, Proteins, Glasses". Berichte Der Bunsen-Gesellschaft-Physical Chemistry Chemical Physics. 93: 1260–1263.
  79. → R. Hirschmann and J. Friedrich. (1989). "A Hole Burning Study of Excitonic States of Chain Molecules in Glasses". Journal of Chemical Physics. 91: 7988–7993. DOI Link
  80. R. Hirschmann, J. Friedrich and E. Daltrozzo. (1989). "Conformational Transitions of Long-Chain Molecules in Frozen Solutions". Journal of Chemical Physics. 91: 7296–7299. DOI Link
  81. W. Köhler, J. Zollfrank and J. Friedrich. (1989). "Stability of Frequency-Domain Information Bits in Amorphous Organic Materials". Journal of Applied Physics. 66: 3232–3240.
  82. J. Friedrich and W. Köhler. (1989). "Relaxation in glasses and proteins". Dynamical processes in condensed molecular systems: 3.
  83. J. Friedrich. (1990). "Spectral Holes as Probes for Structural Transitions in Polymers". Angewandte Makromolekulare Chemie. 183: 115–122.
  84. J. Zollfrank and J. Friedrich. (1990). "Spectral Diffusion and Thermal Recovery of Spectral Holes Burnt into a Phthalocyanine Doped Shpolskii System". Journal of Chemical Physics. 93: 8586–8590. DOI Link
  85. P. Schellenberg, J. Zollfrank and J. Friedrich. (1990). "Investigation of Site Effects in Spectral Diffusion Broadening of Optical Holes in Glasses". Journal of Physical Chemistry. 94: 5642–5643. DOI Link
  86. J. Friedrich. (1990). "Hole Burning in Biopolymers". Molecular Crystals and Liquid Crystals. 183: 91–103.
  87. G. Gradl, J. Friedrich and E. Daltrozzo. (1990). "Spectroscopy of the Triplet-State of Pseudoisocyanine Molecular Aggregates". Journal of Physical Chemistry. 94: 2301–2305. DOI Link
  88. J. Zollfrank, R. Hirschmann and J. Friedrich. (1990). "Glasses and disordered crystals: A comparitive hole-burning study". Dynamical processes in condensed molecular systems: 21.
  89. J. Zollfrank, J. Friedrich, J. M. Vanderkooi and J. Fidy. (1991). "Proteins and Glasses - a Comparative Study of Spectral Diffusion Phenomena". Journal of Chemical Physics. 95: 3134–3136.{{cite journal}}: CS1 maint: multiple names: authors list (link) DOI Link
  90. P. Schellenberg, J. Friedrich and E. Daltrozzo. (1991). "On the Distribution of Reactive Barriers in Disordered Materials". Journal of Chemical Physics. 95: 189–194. DOI Link
  91. → J. Zollfrank, J. Friedrich, J. Fidy and J. M. Vanderkooi. (1991). "Photochemical Holes under Pressure - Compressibility and Volume Fluctuations of a Protein". Journal of Chemical Physics. 94: 8600–8603.{{cite journal}}: CS1 maint: multiple names: authors list (link) DOI Link
  92. → G. Gradl, J. Zollfrank, W. Breinl and J. Friedrich. (1991). "Color Effects in Pressure-Tuned Hole-Burned Spectra". Journal of Chemical Physics. 94: 7619–7624.{{cite journal}}: CS1 maint: multiple names: authors list (link) DOI Link
  93. → J. Zollfrank, J. Friedrich, J. M. Vanderkooi and J. Fidy. (1991). "Conformational Relaxation of a Low-Temperature Protein as Probed by Photochemical Hole Burning. Horseradish-Peroxidase". Biophysical Journal. 59: 305–312.{{cite journal}}: CS1 maint: multiple names: authors list (link) Abstract
  94. J. Friedrich. (1991). "Hole burning spectroscopy of chromoproteins". Light in biology and medicine. 2: 345.
  95. J. Fidy, J. M. Vanderkooi, J. Zollfrank and J. Friedrich. (1992). "Softening of the Packing Density of Horseradish-Peroxidase by a H-Donor Bound near the Heme Pocket". Biophysical Journal. 63: 1605–1612.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  96. G. Gradl, A. Feis and J. Friedrich. (1992). "Pressure Tuning of Spectral Holes in Organic Crystalline Materials: Irreversible Effects". Journal of Chemical Physics. 97: 5403–5409. DOI Link
  97. J. Zollfrank and J. Friedrich. (1992). "Color Effects in Pressure-Broadened Spectral Holes". Journal of Physical Chemistry. 96: 7887–7889. DOI Link
  98. J. Zollfrank and J. Friedrich. (1992). "Pressure Shift and Solvent Shift: a Hole-Burning Study of Resorufin-Doped Glasses". Journal of Physical Chemistry. 96: 7889–7895. DOI Link
  99. G. Gradl, K. Orth and J. Friedrich. (1992). "Nuclear-Spin Conversion Relaxation Processes in Dimethyl-S-Tetrazine-Doped Normal-Octane Measured by Spectral-Hole-Burning Techniques". Europhysics Letters. 19: 459–463.
  100. A. Feis, J. Friedrich, L. Gottschalk and H. Scheer. (1992). "Energy-Transfer in the Core Pigments of Phycobilisomes from Mastigocladus-Laminosus as Studied by Temperature-Dependent Hole Burning". Journal of Physical Chemistry. 96: 6087–6089.{{cite journal}}: CS1 maint: multiple names: authors list (link) DOI Link
  101. J. Zollfrank and J. Friedrich. (1992). "Spectral Holes under Pressure - Proteins and Glasses". Journal of the Optical Society of America B-Optical Physics. 9: 956–961.
  102. R. Hirschmann and J. Friedrich. (1992). "Hole Burning of Long-Chain Molecular Aggregates - Homogeneous Line Broadening, Spectral-Diffusion Broadening, and Pressure Broadening". Journal of the Optical Society of America B-Optical Physics. 9: 811–815.
  103. → J. Zollfrank, J. Friedrich and F. Parak. (1992). "Spectral Hole Burning Study of Protoporphyrin-IX Substituted Myoglobin". Biophysical Journal. 61: 716–724. Abstract
  104. G. Gradl, A. Feis and J. Friedrich. (1992). "Lorentzian Antihole Formation through Optically Induced Spin Conversion in Doped N-Octane Crystals". Journal of Physical Chemistry. 96: 2080–2082. DOI Link
  105. → J. Fidy, J. M. Vanderkooi, J. Zollfrank and J. Friedrich. (1992). "More Than 2 Pirrole Tautomers of Mesoporphyrin Stabilized by a Protein - High-Resolution Optical Spectroscopic Study". Biophysical Journal. 61: 381–391.{{cite journal}}: CS1 maint: multiple names: authors list (link) Abstract
  106. K. Orth, P. Schellenberg, J. Friedrich and W. Häusler. (1993). "Symmetry Species Conversion in Rotational Tunneling Systems Observed by Hole-Burning - High-Resolution Spectroscopy of Dimethyl-S-Tetrazine in N-Octane". Journal of Luminescence. 56: 99–108.{{cite journal}}: CS1 maint: multiple names: authors list (link) DOI Link
  107. P. Schellenberg and J. Friedrich. (1993). "A Pressure Tuning Hole-Burning Study of Resorufin in Protic Solvents". Journal of Luminescence. 56: 143–149. DOI Link
  108. J. Gafert, J. Friedrich, F. Parak and J. Fidy. (1993). "Hole-Burning and Pressure Phenomena in Chromoproteins". Journal of Luminescence. 56: 157–164.{{cite journal}}: CS1 maint: multiple names: authors list (link) DOI Link
  109. → H. Pschierer, J. Friedrich, H. Falk and W. Schmitzberger. (1993). "Molecular-Interactions and Correlation Phenomena between Pressure Shift and Solvent Shift - a Spectral Hole-Burning Study". Journal of Physical Chemistry. 97: 6902–6906.{{cite journal}}: CS1 maint: multiple names: authors list (link)DOI Link
  110. → J. Gafert, J. Friedrich and F. Parak. (1993). "A Comparative Pressure Tuning Hole-Burning Study of Protoporphyrin IX in Myoglobin and in a Glassy Host". Journal of Chemical Physics. 99: 2478–2486. DOI Link
  111. K. Orth, P. Schellenberg and J. Friedrich. (1993). "Spin-Conversion Relaxation in Dimethyl-S-Tetrazine Doped N-Octane: Deuteration and Symmetry-Breaking". Journal of Chemical Physics. 99: 1–6. DOI Link
  112. G. Kaiser, H. Pierron and J. Friedrich. (1993). "Structural Disorder and Spin-Lattice Relaxation". Journal of Chemical Physics. 99: 605–609. DOI Link
  113. J. Kikas, P. Schellenberg and J. Friedrich. (1993). "Temperature Broadening of Impurity Transitions in the Crystalline and Glassy Phase of Benzophenone". Chemical Physics Letters. 207: 143–147. DOI Link
  114. J. Fidy, J. M. Vanderkooi, J. Zollfrank and J. Friedrich. (1993). "Characterization of Protein Conformations by Spectral Hole Burning". Biophysical Journal. 64: A159–A159.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  115. H. Pschierer, P. Schellenberg and J. Friedrich. (1994). "Pressure Phenomena in Spectral Hole-Burning". Molecular Crystals and Liquid Crystals Science and Technology Section a-Molecular Crystals and Liquid Crystals. 252: 405–415.
  116. P. Schellenberg, J. Friedrich and J. Kikas. (1994). "Thermal Recovery and Spectral Diffusion of Photochemical Holes in Polymorphic Systems". Journal of Chemical Physics. 101: 9262–9270. DOI Link
  117. K. Orth, F. Rohlfing and J. Friedrich. (1994). "Rotational Tunneling Dynamics of Methyl-Groups in N-Alkane Host Lattices - an Optical Investigation of the Internal and External Isotope Effect". Zeitschrift Fur Physik B-Condensed Matter. 95: 493–501.
  118. P. Schellenberg, J. Friedrich and J. Kikas. (1994). "Spectral Hole-Burning in Polymorphic Systems: Single-Site Pressure Phenomena and Glassy Behavior". Journal of Chemical Physics. 100: 5501–5507. DOI Link
  119. J. Gafert, J. Friedrich, J. M. Vanderkooi and J. Fidy. (1994). "Correlation between Protein Conformation and Prosthetic Group Configuration as Tested by pH Effects: a Hole-Burning Study on Mesoporphyrin-IX-Substituted Horseradish-Peroxidase". Journal of Physical Chemistry. 98: 2210–2214.{{cite journal}}: CS1 maint: multiple names: authors list (link) DOI Link
  120. → J. Friedrich, J. Gafert, J. Zollfrank, J. Vanderkooi and J. Fidy. (1994). "Spectral Hole-Burning and Selection of Conformational Substates in Chromoproteins". Proceedings of the National Academy of Sciences of the United States of America. 91: 1029–1033.{{cite journal}}: CS1 maint: multiple names: authors list (link) DOI Link
  121. J. Friedrich and P. Schellenberg. (1994). "Optical spectroscopy and disorder in polymers, proteins and glasses". Disorder effects in relaxation processes: 407.
  122. J. Gafert, C. Ober, K. Orth and J. Friedrich. (1995). "Thermal Broadening of an Optical-Transition in a Chromoprotein between 50-mk and 15-K". Journal of Physical Chemistry. 99: 14561–14565.{{cite journal}}: CS1 maint: multiple names: authors list (link) DOI Link
  123. L. Herenyi, J. Fidy, J. Gafert and J. Friedrich. (1995). "Energy Landscape of the Tautomer States of Mesoporphyrin Embedded in Horseradish-Peroxidase". Biophysical Journal. 69: 577–582.{{cite journal}}: CS1 maint: multiple names: authors list (link) Abstract
  124. J. Gafert and J. Friedrich. (1995). "Looking into Frozen Proteins with Hole-Burning". Journal of Luminescence. 64: 45–50. DOI Link
  125. → J. Friedrich. (1995). "Hole-Burning Spectroscopy and Physics of Proteins". Biochemical Spectroscopy. 246: 226–259.
  126. H. Pschierer and J. Friedrich. (1995). "Pressure Broadening and Motional Narrowing in Excitonic States of J-Aggregates". Physica Status Solidi B-Basic Research. 189: 43–49.
  127. J. Friedrich and S. Schneider. (1995). "Laser Spectroscopy and Organic-Dyes". Advanced Materials. 7: 435–436.
  128. J. Gafert, H. Pschierer and J. Friedrich. (1995). "Proteins and Glasses - a Relaxation Study in the Millikelvin Range". Physical Review Letters. 74: 3704–3707.
  129. J. Gafert, J. Friedrich, J. M. Vanderkooi and J. Fidy. (1995). "Structural-Changes and Internal Fields in Proteins - a Hole-Burning Stark-Effect Study of Horseradish-Peroxidase". Journal of Physical Chemistry. 99: 5223–5227.{{cite journal}}: CS1 maint: multiple names: authors list (link) DOI Link
  130. J. Gafert, J. Friedrich and F. Parak. (1995). "Stark-Effect Experiments on Photochemical Holes in Chromoproteins - Protoporphyrin IX-Substituted Myoglobin". Proceedings of the National Academy of Sciences of the United States of America. 92: 2116–2120. DOI Link
  131. J. Friedrich. (1995). "Optische Spektroskopie an Biopolymeren". Spektroskopie amorpher und kristalliner Festkörper: 219.
  132. M. Pinsker and J. Friedrich. (1996). "Hole burning spectroscopy and quantum phenomena in methyl groups". Molecular Crystals and Liquid Crystals Science and Technology Section a-Molecular Crystals and Liquid Crystals. 291: 97–102.
  133. E. Balog, K. KisPetik, R. Galantai, J. Fidy, M. Köhler and J. Friedrich. (1996). "Coordination of Mg-porphyrins in proteins". Progress in Biophysics & Molecular Biology. 65: PA513–PA513.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  134. K. Fritsch, J. Friedrich, F. Parak and J. L. Skinner. (1996). "Spectral diffusion and the energy landscape of a protein". Proceedings of the National Academy of Sciences of the United States of America. 93: 15141–15145.{{cite journal}}: CS1 maint: multiple names: authors list (link) DOI Link
  135. M. Johnson, K. Orth, J. Friedrich and H. P. Trommsdorff. (1996). "Rotational tunneling of partially deuterated methyl groups: Optical studies of dimethyl-s-tetrazine in different crystalline matrices". Journal of Chemical Physics. 105: 9762–9770.{{cite journal}}: CS1 maint: multiple names: authors list (link) DOI Link
  136. H. Wendt and J. Friedrich. (1996). "Hole burning Stark spectroscopy of J aggregates". Chemical Physics. 210: 101–107. DOI Link
  137. → K. Fritsch, J. Friedrich and B. M. Kharlamov. (1996). "Nonequilibrium phenomena in spectral diffusion physics of organic glasses". Journal of Chemical Physics. 105: 1798–1806.DOI Link
  138. M. Köhler, J. Gafert, J. Friedrich, J. M. Vanderkooi and M. Laberge. (1996). "Stark effect experiments in cytochrome c-type proteins: Structural hierarchies". Biophysical Journal. 71: 77–85.{{cite journal}}: CS1 maint: multiple names: authors list (link) Abstract
  139. M. Köhler, J. Gafert, J. Friedrich, H. Falk and J. Meyer. (1996). "Hole-burning spectroscopy of proteins in external fields: Human serum albumin complexed with the hypericinate ion". Journal of Physical Chemistry. 100: 8567–8572.{{cite journal}}: CS1 maint: multiple names: authors list (link) DOI Link
  140. V. Gebhardt, K. Orth and J. Friedrich. (1996). "Optical spectroscopy and ground state dynamics of methyl groups". Journal of Chemical Physics. 104: 942–949. DOI Link
  141. M. Köhler, J. Friedrich, M. Laberge and J. M. Vanderkooi. (1997). "Influence of the pH on the pocket field of cytochrome c type proteins". Chemical Physics. 224: 327–335.{{cite journal}}: CS1 maint: multiple names: authors list (link) DOI Link
  142. M. Köhler, J. Friedrich, E. Balog and J. Fidy. (1997). "Symmetry breaking by the heme pocket in horseradish peroxidase as revealed by Stark spectroscopy". Chemical Physics Letters. 277: 417–422.{{cite journal}}: CS1 maint: multiple names: authors list (link) DOI Link
  143. K. Fritsch and J. Friedrich. (1997). "Spectral diffusion experiments on a myoglobin-like protein: Statistical and individual features of its energy landscape - (Spectral diffusion in proteins)". Physica D. 107: 218–224.
  144. → D. T. Leeson, D. A. Wiersma, K. Fritsch and J. Friedrich. (1997). "The energy landscape of myoglobin: An optical study". Journal of Physical Chemistry B. 101: 6331–6340.{{cite journal}}: CS1 maint: multiple names: authors list (link) DOI Link
  145. E. Balog, K. Kis-Petik, J. Fidy, M. Kohler and J. Friedrich. (1997). "Interpretation of multiple Q(0,0) bands in the absorption spectrum of Mg-mesoporphyrin embedded in horseradish peroxidase". Biophysical Journal. 73: 397–405.{{cite journal}}: CS1 maint: multiple names: authors list (link) Abstract
  146. E. Balog, R. Galantai, K. Kis-Petik, J. Fidy, M. Köhler and J. Friedrich. (1997). "Coordination of Mg-mesoporphyrin to the heme pocket of HRP". Biophysical Journal. 72: TUPM7–TUPM7.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  147. A. Suisalu, V. Zazubovich, J. Kikas, J. Friebel and J. Friedrich. (1998). "Low-temperature dynamics of incommensurate biphenyl as probed by spectral hole burning". Europhysics Letters. 44: 613–619.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  148. → M. Köhler, J. Friedrich and J. Fidy. (1998). "Proteins in electric fields and pressure fields: basic aspects". Biochimica Et Biophysica Acta-Protein Structure and Molecular Enzymology. 1386: 255–288.
  149. M. Laberge, J. Vanderkooi, K. Sharp, M. Köhler and J. Friedrich. (1998). "Probing the structural heterogeneity of yeast and horse heart cytochromes c by high resolution spectroscopy and electrostatic calculations". Biophysical Journal. 74: A250–A250.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  150. J. Friebel, J. Friedrich, A. Suisalu, J. Kikas, A. Kuznetsov, A. Laisaar and K. Leiger. (1998). "Pressure-induced dynamics in solid n-alkanes as probed by optical spectroscopy". Journal of Chemical Physics. 108: 1830–1835.{{cite journal}}: CS1 maint: multiple names: authors list (link) DOI Link
  151. M. Laberge, M. Köhler, J. M. Vanderkooi and J. Friedrich. (1999). "Sampling field heterogeneity at the heme of c-type cytochromes by spectral hole burning spectroscopy and electrostatic calculations". Biophysical Journal. 77: 3293–3304.{{cite journal}}: CS1 maint: multiple names: authors list (link)Link
  152. J. Schlichter, K. D. Fritsch, J. Friedrich and J. M. Vanderkooi. (1999). "Conformational dynamics of a low temperature protein: Free base cytochrome-c". Journal of Chemical Physics. 110: 3229–3234.{{cite journal}}: CS1 maint: multiple names: authors list (link) DOI Link
  153. J. Friedrich. (1999). "Hole burning spectroscopy methods". Encyclopedia of spectroscopy and spectrometry.
  154. E. S. Manas, W. W. Wright, K. A. Sharp, J. Friedrich and J. M. Vanderkooi. (2000). "The influence of protein environment on the low temperature electronic spectroscopy of Zn-substituted cytochrome c". Journal of Physical Chemistry B. 104: 6932–6941.{{cite journal}}: CS1 maint: multiple names: authors list (link) DOI Link
  155. J. Schlichter, K. D. Fritsch and J. Friedrich. (2000). "Dynamics of frozen proteins as investigated by optical hole burning experiments". Journal of Molecular Liquids. 86: 127–136.
  156. J. Schlichter, J. Friedrich, L. Herenyi and J. Fidy. (2000). "Protein dynamics at low temperatures". Journal of Chemical Physics. 112: 3045–3050.{{cite journal}}: CS1 maint: multiple names: authors list (link) DOI Link
  157. M. Stübner, E. Schneider and J. Friedrich. (2001). "Hole burning Stark-effect studies on aromatic aminoacids: I. Phenylalanine in a glycerol-water glass". Physical Chemistry Chemical Physics. 3: 5369–5372. DOI Link
  158. M. Pinsker and J. Friedrich. (2001). "Methyl group rotation of p-chlorotoluene in cyclohexane: a nuclear spin conversion study via UV-hole burning". Chemical Physics Letters. 341: 545–550. DOI Link
  159. J. Schlichter, J. Friedrich, M. Parbel and H. Scheer. (2001). "Influence of isotopic substitution on the conformational dynamics of frozen proteins". Journal of Chemical Physics. 114: 9638–9644.{{cite journal}}: CS1 maint: multiple names: authors list (link) DOI Link
  160. J. Schlichter and J. Friedrich. (2001). "Glasses and proteins: Similarities and differences in their spectral diffusion dynamics". Journal of Chemical Physics. 114: 8718–8721. DOI Link
  161. J. Schlichter, J. Friedrich, L. Herenyi and J. Fidy. (2001). "Trehalose effect on low temperature protein dynamics: Fluctuation and relaxation phenomena". Biophysical Journal. 80: 2011–2017.{{cite journal}}: CS1 maint: multiple names: authors list (link) Link
  162. M. Stübner, C. Hecht and J. Friedrich. (2002). "Labeling proteins via hole burning of their aromatic amino acids: pressure tuning spectroscopy of BPTI". Biophysical Journal. 83: 3553–3557. Link
  163. M. Stübner, C. Hecht, E. Schneider and J. Friedrich. (2002). "Hole burning Stark-effect studies on aromatic aminoacids - Part II. A comparative investigation of t". Physical Chemistry Chemical Physics. 4: 6080–6085. {{cite journal}}: Text "yearosine and the BPTI-protein" ignored (help)CS1 maint: multiple names: authors list (link) DOI Link
  164. M. Pinsker and J. Friedrich. (2002). "Methyl group rotational tunneling splittings and spin conversion dynamics: p-chlorotoluene in cyclohexane". Journal of Chemical Physics. 117: 4639–4642. DOI Link
  165. V. V. Ponkratov, J. Friedrich and J. M. Vanderkooi. (2002). "Solvent effects on conformational dynamics of proteins: Cytochrome c in a dried trehalose film". Journal of Chemical Physics. 117: 4594–4601. DOI Link
  166. M. Stübner, J. Friedrich, Y. P. Yang and T. C. Chang. (2002). "Using external field effects for elucidating specific features in dye-DNA interaction". Journal of Luminescence. 98: 153–161.{{cite journal}}: CS1 maint: multiple names: authors list (link) DOI Link
  167. A. L. Burin, Y. A. Berlin, A. Z. Patashinski, M. A. Ratner and J. Friedrich. (2002). "Fluctuations of conformational states in biological molecules: theory for anomalous spectral diffusion dynamics". Physica B-Condensed Matter. 316: 321–323.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  168. J. Schlichter, J. Friedrich, L. Herenyi and J. Fidy. (2002). "Deuteration effects on the conformational dynamics of proteins in a trehalose glass". Journal of Physical Chemistry B. 106: 3510–3514.{{cite journal}}: CS1 maint: multiple names: authors list (link) DOI Link
  169. H. Lesch, H. Stadlbauer, J. Friedrich and J. M. Vanderkooi. (2002). "Stability diagram and unfolding of a modified cytochrome c: What happens in the transformation regime?". Biophysical Journal. 82: 1644–1653.{{cite journal}}: CS1 maint: multiple names: authors list (link) Link
  170. J. Schlichter, V. V. Ponkratov and J. Friedrich. (2003). "Structural fluctuations and aging processes in deeply frozen proteins". Low Temperature Physics. 29: 795–800. DOI Link
  171. Y. P. Yang, T. C. Chang, M. Stübner and J. Friedrich. (2003). "Influence of pressure on the spectral properties of dye-DNA supermolecules". Journal of Physical Chemistry B. 107: 1458–1465.{{cite journal}}: CS1 maint: multiple names: authors list (link) DOI Link
  172. H. Lesch, C. Hecht and J. Friedrich. (2004). "Protein phase diagrams: The physics behind their elliptic shape". Journal of Chemical Physics. 121: 12671–12675. DOI Link
  173. V. V. Ponkratov, J. Friedrich, J. M. Vanderkooi, A. L. Burin and Y. A. Berlin. (2004). "Physics of proteins at low temperature". Journal of Low Temperature Physics. 137: 289–317.{{cite journal}}: CS1 maint: multiple names: authors list (link) DOI Link
  174. C. Hecht, M. Stübner, J. Friedrich and T. C. Chang. (2004). "Investigation of probe-solvent interactions: color effects in optical line widths". Chemical Physics Letters. 395: 21–26.{{cite journal}}: CS1 maint: multiple names: authors list (link) DOI Link
  175. C. Hecht, J. Friedrich and T. C. Chang. (2004). "Interactions of thionin with DNA strands: Intercalation versus external stacking". Journal of Physical Chemistry B. 108: 10241–10244. DOI Link
  176. L. Herenyi, K. Szigeti, J. Fidy, T. Temesvari, J. Schlichter and J. Friedrich. (2004). "Aging dynamics in globular proteins: summary and analysis of experimental results and simulation by a modified trap model". European Biophysics Journal with Biophysics Letters. 33: 68–75.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  177. V. V. Ponkratov, J. Friedrich, D. Markovic, H. Scheer and J. M. Vanderkooi. (2004). "Spectral diffusion experiment with a denatured protein". Journal of Physical Chemistry B. 108: 1109–1114.{{cite journal}}: CS1 maint: multiple names: authors list (link) DOI Link
  178. H. Lesch, J. Schlichter, J. Friedrich and J. M. Vanderkooi. (2004). "Molecular probes: What is the range of their interaction with the environment?". Biophysical Journal. 86: 467–472.{{cite journal}}: CS1 maint: multiple names: authors list (link) Link
  179. C. Hecht, P. Hermann, J. Friedrich, C. C. Chang and T. C. Chang. (2005). "Thionin in a cyclodextrin nanocavity: Measuring local compressibilities by pressure tuning hole burning spectroscopy". Chemical Physics Letters. 413: 335–341.{{cite journal}}: CS1 maint: multiple names: authors list (link) DOI Link
  180. C. Scharnagl, M. Reif and J. Friedrich. (2005). "Local compressibilities of proteins: Comparison of optical experiments and simulations for horse heart cytochrome-c". Biophysical Journal. 89: 64–75. Link
  181. J. Friedrich and J. M. Vanderkooi. (2005). "Solvent effects - Preface". Biochimica Et Biophysica Acta-Proteins and Proteomics. 1749: 147–147. DOI Link
  182. C. Scharnagl, M. Reif and J. Friedrich. (2005). "Stability of proteins: Temperature, pressure and the role of the solvent". Biochimica Et Biophysica Acta-Proteins and Proteomics. 1749: 187–213. DOI Link
  183. C. Schnell, M. Reif, C. Scharnagl and J. Friedrich. (2005). "Local compressibilities in insulin as determined from pressure tuning hole burning experiments and MD simulations". Physical Chemistry Chemical Physics. 7: 2217–2224.{{cite journal}}: CS1 maint: multiple names: authors list (link) DOI Link
  184. M. M. Somoza and J. Friedrich. (2006). "Thermal-cycling-induced spectral diffusion and thermal barriers in anisole-doped cyclohexane, an unusual multiphase host-guest system". Journal of Physical Chemistry B. 110: 18828–18833. DOI Link
  185. R. Gebhardt, W. Doster, J. Friedrich and U. Kulozik. (2006). "Size distribution of pressure-decomposed casein micelles studied by dynamic light scattering and AFM". European Biophysics Journal with Biophysics Letters. 35: 503–509.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  186. M. M. Somoza, J. Friedrich and H. P. Trommsdorff. (2006). "Light scattering and spectral inversion in a matrix-isolated molecule". Chemical Physics Letters. 420: 534–537. DOI Link
  187. C. Schnell, C. Scharnagl and J. Friedrich. (2006). "Hole burning spectroscopy of ribonuclease A". Physical Chemistry Chemical Physics. 8: 1315–1320. DOI Link
  188. M. M. Somoza and J. Friedrich. (2006). "The physics of rotational tunneling: hole-burning spectroscopy of methyl groups". Low Temperature Physics. 32: 1345–1354.
  189. V. V. Ponkratov, J. Friedrich and J. Vanderkooi. (2006). "Hole burning experiments with proteins: Relaxations, fluctuations and glass-like features". Journal of Non-Crystalline Solids. 352: 4379–4386.
  190. M. M. Somoza, V. V. Ponkratov and J. Friedrich. (2006). "Investigation of spectral diffusion in ribonuclease by photolabeling of intrinsic aromatic amino acids". Journal of Chemical Physics. 125: 194713–194720. DOI Link
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