Harry Kurreck. On the occasion of his 65th birthday

A biog. is presented of Harry Kurreck, (born 1932) on the occasion of his 65th birthday and his contributions to the field of org. and bioorg. radicals and model systems for light-induced electron transfer as studied by EPR are described.

Frühere Forschungsgebiete der Arbeitsgruppe Kurreck (Prof. Kurreck ist im Ruhestand)

SCHLAGWÖRTER

artifizielle Photosynthese, Elektronentransfer, Porphyrin-Chinone, zeitaufgelöste EPR

KURZE ZUSAMMENFASSUNG

The primary processes of photosynthesis are currently of greatest interest both in basic research and in the applied field. The development of efficient artificial photosynthetic systems for conversion and storage of solar energy requires a fundamental understanding of the processes that take place in natural photosynthesis. The redox active components of the photosynthetic reaction centers are porphyrins, albeit (reduced) derivatives like (bacterio)chlorophyll, acting as primary donor, and different types of quinone acceptors, e.g., ubiquinone. Synthesis and investigation of the multistep electron transfer routes in porphyrin quinone diads and triads, which mimic the photosynthetic chromophores chain. The light-driven reactions of the model compounds are studied by (time-resolved) optical and, in particular, X band and high-field (95 GHz) EPR spectroscopy. In order to mimic membrane properties of the native systems, measurements are not only performed in isotropic solutions, but in addition in liquid crystals, reversed micelles, and Langmuir-Blodgett films.

Publikationsliste Kurreck

1. Über substituierte Pentaphenylcyclopentadienyl-Verbindungen und Tetracyclone.
H. Kurreck* und W. Broser
Chem. Ber. 1965, 98,11.

2. Über die Bildung freier Radikale aus 3.3'- und 4.4'-Dinitrobenzol im alkalischen Medium.
H. Kurreck* und W. Broser
Z. Naturforsch. 1965, 20b, 943.

3. Über substituierte Pentaphenylcyclopentadienyl-Verbindungen und Tetracyclone II.
W. Broser, H. Kurreck* und P. Siegle
Chem. Ber. 1966, 99, 2246.

4. Symmetrische Cyclopentadienyl-Kationen mit nachweisbaren Triplettzuständen.
W. Broser, H. Kurreck* und P. Siegle
Chem. Ber. 1967, 100, 788.

5. Unsymmetrisch p-methyl- und p-phenyl-substituierte Pentaphenylcyclopentadienyl-Kationen und -Radikale.
W. Broser, P. Siegle und H. Kurreck*
Chem. Ber. 1968, 101, 69.

6. EPR-Spektroskopie an Tetracyclon-Metallketylen.
W. Broser, H. Kurreck*, P. Siegle und J. Reusch
Z. Naturforsch. 1969, 24b, 685.

7. Zur Frage des Mechanismus der Kondensation mono-p-substituierter Benzile und Dibenzylketone zu Tetracyclonen.
W. Broser, J. Reusch, H. Kurreck* und P. Siegle
Chem. Ber. 1969, 102, 1715.

8. Intermolekulare Elektronen-Spin/Spin-Kopplung bei Tetracyclon-Metallketylen.
H. Kurreck* und W. Broser
Z. Naturforsch. 1969, 24b, 1199.

9. EPR-Untersuchung dimerer Tetracyclon-Lithium-Ketyle in Durol.
H. Kurreck* und W. Broser
Z. Naturforsch. 1970, 25b, 1094.

10. LCAO-HMO-Interpretation der g-Faktorverschiebungen von Tetracyclon-Metallketylen und der Elektronenspektren von Tetracyclonen.
H.-Th. Grunder, H.-J. Haink, H. Kurreck*, W. J. Richter und W.-D. Woggon
Z. Naturforsch. 1972, 27b, 532.

11. EPR-Untersuchung von Bis-(tetraphenylcyclopentadienyl)-Verbindungen.
D. Janzen und H. Kurreck*
Tetrahedron Lett. 1972, 51, 5231.

12. Untersuchung der pi-sigma-Delokalisation an den Radikalionen des Rubrens mit ENDOR in Lösung.
R. Biehl, K.-P. Dinse, K. Möbius*, M. Plato, H. Kurreck* und U. Mennenga
Tetrahedron 1973, 29, 363.

13. Metallorganische Synthese und EPR-Spektroskopie von Galvinoxyl-Verbindungen.
W. Gierke, W. Harrer, H. Kurreck* und J. Reusch
Tetrahedron Lett. 1973, 38, 3681.

14. Darstellung von Tetraaryl-Pyrrolen und vergleichende EPR-g Faktor-Untersuchung von Pyrryl-Radikalen mit Tetracyclon-Ketylen.
W. Broser, H. Kurreck*, D. Rennoch und J. Reusch
Tetrahedron 1973, 29, 3959.

15. Synthese und EPR-Spektroskopie Phenyl-substituierter und teildeuterierter Schlenk'scher Kohlenwasserstoffe.
K. Hinrichs, H. Kurreck* und W. Niemeier
Tetrahedron 1974, 30, 315.

16. Darstellung und EPR-Spektroskopie m-phenylen-verknüpfter biradikalischer Bistetracyclon-Metallketyle.
H. Kurreck* und S. Oestreich
Tetrahedron 1974, 30, 3199.

17. Synthese und EPR-Spektroskopie Schlenk'scher und Tschitschibabin'scher Kohlenwasserstoff.
H. Kurreck* und W. Niemeier
Tetrahedron Lett. 1974, 39, 3523.

18. Strukturuntersuchung an Biradikalen vom Typ des Schlenk'schen und des Tschitschibabin'schen Kohlenwasserstoffs.
W. Broser, H. Kurreck* und W. Niemeier
Tetrahedron 1975, 31, 1769.

19. Eine neue metallorganische Synthese von mono- und oligo-Galvinolen.
W. Harrer, H. Kurreck*, J. Reusch und W. Gierke
Tetrahedron 1975, 31, 625.

20. ENDOR of biradicals in liquid solution.
H. van Willigen*, M. Plato, K. Möbius*, K.-P. Dinse, H. Kurreck*and J. Reusch
Mol. Phys. 1975, 30, 1359.

21. Über paramagnetische Dimerenkomplexe des substituierten Triphenylmethylradikals.
W. Broser, H. Kurreck* und W. Niemeier
Tetrahedron 1976, 32, 1183.

22. EPR-HFS- und elektronenspektroskopische Untersuchung von Galvinoxyl-Mehrspinsystemen.
W. Gierke, W. Harrer, H. Kurreck* und J. Reusch
Z. Naturforsch. 1976, 31b, 965.

23. EPR-Spektroskopie an regellos orientierten Bis-Galvinoxyl-Biradikalen in der Glasmatrix.
W. Broser, B. Kirste, H. Kurreck* und J. Reusch
Z. Naturforsch. 1976, 31b, 974.

24. Synthese und EPR-Spektroskopie Dicyclopentadienylanaloger der Schlenk'schen und Tschitschibabin'schen Kohlenwasserstoffe.
W. Broser, D. Janzen, H. Kurreck*, D. Braasch, S. Oestreich und M. Plato
Tetrahedron 1976, 32, 1819.

25. Untersuchung dynamischer Effekte an Galvinoxyl-Dublett-Radikalen mit ENDOR-in-Lösung.
K. Hinrichs, B. Kirste, H. Kurreck* und J. Reusch
Tetrahedron 1977, 33, 151.

26. Polarographische und EPR-spektroskopische Untersuchungen zur Konformation von Tetracyclonen und deren Radikalionen.
S. Oestreich, W. Broser und H. Kurreck*
Z. Naturforsch. 1977, 32b, 686.

27. ESR, NMR and ENDOR Studies of partially deuterated Phenyl substituted Anthracenes. pi-sigma-Delocalization.
R. Biehl, K. Hinrichs, H. Kurreck*, W. Lubitz, U. Mennenga and K. Roth
J. Am. Chem. Soc. 1977, 99, 4278.

28. ESR and ENDOR Studies of partially deuterated and chlorinated Phenalenyls.
R. Biehl, Ch. Hass, H. Kurreck*, W. Lubitz and S. Oestreich
Tetrahedron 1978, 34, 419.

29. 13C- and 1H-ENDOR Studies of a Phenoxyl Type Radical.
W. Lubitz, W. Broser, B. Kirste, H. Kurreck*, and K. Schubert
Z. Naturforsch. 1978, 33a, 1072.

30. Nachweis eines Biradikals mit 1H- and 13C-ENDOR-in-Lösung.
B. Kirste, H. Kurreck* und K. Schubert
Tetrahedron Lett. 1978, 777.

31. 13C-ENDOR Studies of Organic Doublet and Triplet State Molecules.
B. Kirste, H. Kurreck*, W. Lubitz, and K. Schubert
J. Am. Chem. Soc. 1978, 100, 2292.

32. ENDOR of Organic Triplet- and Quartet-State Molecules in Liquid Solutions and in Rigid Media.
B. Kirste, H. van Willigen, H. Kurreck*, K. Möbius,. M. Plato, and R. Biehl.
J. Am. Chem. Soc. 1978, 100, 7505.

33. ENDOR Studies of [6]Helicene Anion Radical.
H.-J. Fey, H. Kurreck*, and W. Lubitz
Tetrahedron 1979, 35, 905.

34. ENDOR Investigations of Internal Dynamics in Cyclopropyl Galvinoxyl Radicals.
B. Kirste, H. Kurreck*, W. Harrer, and J. Reusch
J. Am. Chem. Soc. 1979, 101, 1775.

35. 1H-, 2H- and 13C-ENDOR Studies of Phenalenyl Radicals in Nematic and Smectic Mesophases of Liquid Crystals.
B. Kirste, H. Kurreck*, H.-J. Fey, Ch. Hass, and G. Schlömp
J. Am. Chem. Soc. 1979, 101, 7457.

36. ESR-, 1H-, D-, 13C-ENDOR and TRIPLE Resonance Studies of Alkyl Substituted Phenalenyl Radicals.
W. Broser, H. Kurreck*, S. Oestreich-Janzen, G. Schlömp, H.-J. Fey, and B. Kirste
Tetrahedron 1979, 35, 1159.

37. 1H-, 2H-, 13C- and 14N-ENDOR Studies of Coppinger's Radicals in Liquid Solutions and in Liquid Crystals.
B. Kirste, H. Kurreck*, and K. Schubert
Tetrahedron 1980, 36, 1985.

38. 1H, 2H and 13C ENDOR Studies of Labeled Bis(biphenylyl)-propenyl Type Radicals in Isotropic Solutions and in Liquid Crystals.
B. Kirste, H. Kurreck*, W. Lubitz, and H. Zimmermann
J. Am. Chem. Soc. 1980, 102, 817.

39. Electron Nuclear Double Resonance (ENDOR) Investigations of Organic Doublet Radicals in the Nematic and Smectic Phase of Liquid Crystals.
B. Kirste and H. Kurreck*
Appl. Spectrosc. 1980, 34, 305.

40. Determination of the Isotope Distribution in Partially Deuterated Compounds by NMR Difference Spectroscopy.
K. Roth, P. Melzer, and H. Kurreck*
Org. Reson. 1980, 14, 247.

41. First Successful ENDOR Studies of Organic Radical Ions in Liquid Crystals.
B. Kirste and H. Kurreck*
J. Am. Chem. Soc. 1980, 102, 6180.

42. Synthesen, ESR- und ENDOR-Untersuchungen hochverdrillter phenylsubstituierter Radikalionen.
K. Grein, B. Kirste and H. Kurreck*
Chem. Ber. 1981, 114, 254.

43. 14N and 1H ENDOR and TRIPLE Resonance Experiments of Flavin and Thiaflavin Radical Cations in Liquid Solution.
M. Bock, W. Lubitz, and H. Kurreck*
J. Am. Chem. Soc. 1981, 103, 5567.

44. 1H and 13C ENDOR Investigations of Sterically Hindered Galvinoxyl Radicals.
B. Kirste, W. Harrer, H. Kurreck*, K. Schubert, H. Bauer, and W. Gierke
J. Am. Chem. Soc. 1981, 103, 6280.

45. ENDOR-Untersuchung eines neuen organischen Tetraradikals im Quintett-Zustand.
B. Kirste, W. Harrer und H. Kurreck*
Angew. Chem. 1981, 93, 912; Angew. Chem. Int. Ed. Engl. 1981, 20, 873.

46. 1H and 13C ENDOR on Phenoxyl Biradicals Randomly Oriented in Frozen Solution.
H. van. Willigen, B. Kirste, H. Kurreck*, and M. Plato
Tetrahedron, Symposium in Print, 1982, 38, 764.

47. ESR and ENDOR Investigations of Spin Exchange in Mixed Galvinoxyl-Nitroxide Biradicals. Syntheses.
B. Kirste, A. Krüger, and H. Kurreck*
J. Am. Chem. Soc. 1982, 104, 3850.

48. C-C- und N-N-verknüpfte Pyrrol-Dimere: Die Stabilisierung komplexer Systeme durch die CF3S-Gruppe als Substituent.
M. R. C. Gerstenberger, A. Haas*, B. Kirste, C. Krüger and H. Kurreck
Chem. Ber. 1982, 115, 2540.

49. Synthesen, ESR- und ENDOR-Untersuchungen methylsubstituierter m-Terphenyl-Radikalanionen.
P. Melzer, H. Kurreck* und W. Kieslich
Chem. Ber. 1982, 115, 3597.

50. Erzeugung des Tetraphenylcyclobutadien-Radikalkations durch ionisierende Gasphasendecarbonylierung.
W. Blum, H. Kurreck*, W. J. Richter, H. Schwarz* und H. Thies
Angew. Chem. 1983, 95, 59; Angew. Chem. Int. Ed. Engl. 1983, 22, 51.

51. Erstmalige 13C-ENDOR-Untersuchung eines organischen Triradikals im Quartettzustand; Synthese eines dreifach 13C-markierten Trisgalvinols.
K. Schubert, B. Kirste und H. Kurreck*
Angew. Chem. 1983, 95, 149; Angew. Chem. Int. Ed. Engl. 1983, 22, 150; Angew. Chem. Suppl. 1983, 128-139.

52. 29Si-E(lectron) N(uclear) DO(uble) R(esonance).
H. Bock*, B. Hierholzer, H. Kurreck* und W. Lubitz
Angew. Chem. 1983, 95, 817; Angew. Chem. Int. Ed. Engl. 1983, 22, 787.

53. Syntheses and ENDOR Investigations of 13C-Labeled and Deuterated Phenalenyls. Rearrangement Reactions.
Ch. Hass, B. Kirste, G. Schlömp und H. Kurreck*
J. Am. Chem. Soc. 1983, 105, 7375.

54. Synthese von im Cholinteil deuterierten 3-sn- und 2-Phosphatidylcholinen.
Th. Laube und H. Kurreck*
J. Labelled Compd. & Radiopharm. 1983, 10(1), 111

55. Fluid Solution and Solid State ENDOR Studies of Flavin Model Compounds and Flavoenzymes.
M. Bock, N. Bretz, M. Elsner, H. Kraus, W. Lubitz, F. Müller, J. Geissler, P. M. H. Kroneck und H. Kurreck*
J. Am. Chem. Soc. 1984, 106, 737.

56. 13C, 19F, and 1H ENDOR Investigations of Substituent Effects on Lifting of Orbital Degeneracy in Cyclopentadienyl Radicals.
W. Kieslich and H. Kurreck*
J. Am. Chem. Soc. 1984, 106, 4328.

57. ENDOR-Spektroskopie - eine fortschrittliche Methode zur Strukturuntersuchung organischer Radikale.
H. Kurreck*, B. Kirste und W. Lubitz
Angew. Chem. 1984, 96, 171; Angew. Chem. Int. Ed. Engl. 1984, 23, 173.

58. Magnetic Resonance Studies of Cation Radicals from Chromanes.
I. M. Smith, L. H. Sutcliffe*, S. Wiesner, W. Lubitz* and H. Kurreck
J. Chem. Soc. Faraday Trans. I. 1984, 80, 3021.

59. ENDOR Studies on Flavin Radicals. ENDOR Studies of Flavoproteins
M. Bock, N. Bretz, M. Elsner and H. Kurreck*
In: "Flavins and Flavoproteins", De Gruyter, Berlin, 1984.

60. ENDOR Studies of Novel Di- and Triphenylmethyl Radicals Generated from Galvinols.
B. Kirste, W. Harrer and H. Kurreck*
J. Am. Chem. Soc. 1985, 107, 20.

61. Untersuchung des Spindichtetransfers in Cyclopropyl- und Cyclohexylgruppen mit ENDOR und TRIPLE-Resonanz, INDO- und MINDO/3-Rechnungen.
B. Kirste, W. Broser, K. Grein, H. Kurreck* and G. Schlömp
Chem. Ber. 1985, 118, 3464.

62. Syntheses and ENDOR Studies of Selectively Deuterated Galvinoxyl Radicals - Complete Determination of the 13C Hyperfine Coupling Constants of Coppinger's Radical.
B. Kirste, H. Kurreck* and M. Sordo
Chem. Ber. 1985, 118, 1782.

63. 14N and 15N ENDOR Studies of Intrabridgehead Three-Electron s-Bonded Radical Cations. Observation of Second-Order Splittings.
B. Kirste, R. W. Alder, R. B. Sessions, M. Bock, H. Kurreck*, and S. F. Nelsen
J. Am. Chem. Soc. 1985, 107, 2635.

64. Natural Abundance 13C and 29Si ENDOR Studies of Cyclopolysilane Radical Anions.
B. Kirste, R. West and H. Kurreck*
J. Am. Chem. Soc. 1985, 107, 3013.

65. 8,8'-Bi(8-azabicyclo[3.2.1]octane) and its oxidized Forms.
S. F. Nelsen*, G. T. Cunkle, D. H. Evans, K. J. Haller, M. Kaftory, B. Kirste, H. Kurreck and T. Clark
J. Am. Chem. Soc. 1985, 107, 3829.

66. ENDOR Studies of Cation Radicals from Pharmacologically Active Phenothiazines.
N. Helle, H. Kurreck*, M. Bock and W. Kieslich
Magn. Reson. Chem. 1985, 23, 964.

67. Darstellung, ESR- und ENDOR-Untersuchung von Radikalkationen des Tetraphenylhydrazins, des 5,6-Dihydro-5,6-diphenyl-benzo-[c]cinnolins und des Benzo[c]benzo[3,4]cinnolino[1,2-a]-cinnolins.
F. A. Neugebauer*, M. Bock, S. Kuhnhäuser und H. Kurreck
Chem. Ber. 1986, 119, 980.

68. Synthesis and EPR and ENDOR Investigations of Coppinger's Radical with Perdeuteriated tert-Butyl Groups.
J. v. Gersdorff, B. Kirste und H. Kurreck*
Magn. Reson. Chem. 1986, 24, 1077.

69. Erstmalige 13C-ENDOR-Untersuchung eines organischen Tetraradikals im Quintettzustand; Synthese eines vierfach 13C-markierten Tetrakisgalvinols.
M. Grimm, B. Kirste und H. Kurreck*
Angew. Chem. 1986, 98, 1095; Angew. Chem. Int. Ed. Engl.. 1986, 25, 1097.

70. Erstmalige ENDOR-Untersuchung biologisch relevanter organischer Radikale in inversen Micellen.
N. Bretz, I. Mastalsky, M. Elsner und H. Kurreck*
Angew. Chem. 1987, 99, 357; Angew. Chem. Int. Ed. Engl. 1987, 26, 345.

71. 1H, 2H, 19F, 14N ENDOR and TRIPLE Resonance Investigations of Substituted Flavin Radicals in Their Different Protonation States.
E. Weilbacher, N. Helle, M. Elsner and H. Kurreck*
Magn. Reson. Chem. 1988, 26, 64.

72. EPR and ENDOR Investigations of Dynamic Processes in Sterically Overcrowded Phenoxyl-Type Galvinoxyl Radicals.
J. v. Gersdorff, B. Kirste, D. Niethammer, W. Harrer and H. Kurreck*
Magn. Reson. Chem. 1988, 26, 416.

73. Mass Spectroscopic Studies of Riboflavin and Isotopically Labelled Lumiflavins.
G. Holzmann*, M. Bock, M. Elsner, H. Kurreck and F. Müller
Org. Mass. Spectrom. 1988, 23, 789.

74. ENDOR Studies of Flavins and Flavoproteins.
H. Kurreck*, N. H. Bretz, N. Helle, N. Henzel and E. Weilbacher
J. Chem. Soc., Faraday Trans. 1988, 84, 3293

75. Electron Spin Resonance and ENDOR Reinvestigation of Iminoxyl Radicals from 1-Halogenofluorenone Oximes.
B. Kirste*, K. Grothe and H. Kurreck*
J. Chem. Soc., Faraday Trans. 1988, 84, 3267.

76. Monographie: "Electron Nuclear Double Resonance Spectroscopy of Radicals in Solution".
H. Kurreck*, B. Kirste and W. Lubitz
Methods in Stereochemical Analysis, ed. A. P. Marchand (VCH Publishers, Inc.: New York), 1988.

77. EPR, 1H, 13C ENDOR Studies of a Quintet State 13C-Labeled Galvinoxyl-Type Tetraradical.
B. Kirste*, M. Grimm and H. Kurreck*
J. Am. Chem. Soc. 1989, 111, 108.

78. 1H and 13C ENDOR Investigations of Flavin Radicals Bound to Riboflavin Binding Protein from Egg White.
N. H. Bretz, N. Henzel, H. Kurreck* and F. Müller
Isr. J. Chem. 1989, 29, 49.

79. Structural Effects on ESR Hyperfine Coupling Constants of Some Dithiazolidinyl Free Radicals.
A. M. L. Krebber, L. H. Sutcliffe*, W. Lubitz and H. Kurreck
Magn. Reson. Chem. 1989, 27, 288.

80. ENDOR Studies of pi-Electron Delocalization in Covalently Linked Porphyrin Dimers: Model Systems for the Primary Donor in Photosynthesis?
M. Huber, B. v. Maltzan, M. Plato, H. Kurreck and K. Möbius*
J. Chem. Soc., Faraday Trans. 1990, 86, 1087.

81. Elektronentransfer zwischen kovalent verknüpften Porphyrin- und Chinoneinheiten: Synthese, magnetische Resonanz- und Pikosekunden-Fluoreszenz-Spektroskopie.
J. v. Gersdorff, M. Huber, H. Schubert, D. Niethammer, B. Kirste, M. Plato, K. Möbius*, H. Kurreck*, R. Eichberger, R. Kietzmann und F. Willig*
Angew. Chem. 1990, 102, 690; Angew. Chem. Int. Ed. Engl., 1990, 29, 670.

82. Electron Spin Resonance and ENDOR Study of Semiquinones in Reversed Micelles.
D. Niethammer, B. Kirste* and H. Kurreck*
J. Chem. Soc., Faraday Trans. 1990, 86, 3191.

83. Photoinduced Charge Separation in Stereoisomeric Cyclohexylene Bridged Porphyrin-Quinones.
H. Kurreck*, J. v. Gersdorff, B. Kirste, F. Lendzian, J. Schlüpmann, K. Möbius, F. Willig and R. Kietzmann
Proceedings of the International Workshop on Electron Magnetic Resonance of Disordered Systems, ed. N. D. Yordanov, (World Scientific), 1991, S. 158f.

84. Untersuchung des lichtinduzierten Ladungstransfers zwischen kovalent verknüpften Porphyrin- und Chinon-Einheiten mit zeitaufgelöster EPR-Spektroskopie.
F. Lendzian*, J. Schlüpmann, J. v. Gersdorff, K. Möbius* und H. Kurreck*
Angew. Chem. 1991, 103, 1536; Angew. Chem. Int. Ed. Engl. 1991, 30, 1461.

85. ENDOR Studies of Alkyl Substituted p-Benzosemiquinones in Reversed Micelles and in 2-Propanol.
B. Kirste*, D. Niethammer, P. Tian and H. Kurreck*
Appl. Magn. Reson. 1992, 3, 18.

86. Covalently Linked Porphyrin Ubiquinones(0) as Model Compounds for Photosynthetic Reaction Center.
H. Dieks, J. Sobek, P. Tian and H. Kurreck*
Tetrahedron Lett. 1992, 33, 5951.

87. Photo-Induced Electron Transfer in Covalently Linked Donor-Acceptor Assemblies in Liquid Crystals. Time-Resolved Electron Paramagnetic Resonance.
K. Hasharoni, H. Levanon*, J. von Gersdorff, H. Kurreck and K. Möbius
J. Chem. Phys. 1993, 98, 2916.

88. Photosynthetic Model Systems: Photoinduced Charge Separation in Covalently Linked Porphyrin Quinones.
H. Kurreck*, H. Dieks, J. von Gersdorff, J. Sobek, P. Tian, M. Ebersole, K. Möbius, F. Willig, K. Schwarzburg, H. Levanon and K. Hasharoni
Proceedings of the 9th International Conference on Photochemical Conversion and Storage of Solar Energy, ed. Zhao Wu Tian, (International Academic Publishers, Peking), 1993, 159f.

89. Darstellung von aliphatisch und cycloaliphatisch verbrückten Porphyrin-Chinonen als Modellverbindungen zur Untersuchung der lichtinduzierten Ladungstrennung in der Photosynthese.
J. von Gersdorff, B. Kirste und H. Kurreck*
Liebigs Ann. Chem. 1993, 897.

90. Triplettzustände in der Organischen Chemie.
H. Kurreck*
Angew. Chem. 1993, 105, 1472; Angew. Chem. Int. Ed. Engl. 1993, 32, 1409.

91. Photoinduced Reactions of Covalently Linked Porphyrin Quinones in Reversed Micelles as Studied by EPR Spectroscopy.
H. Kurreck*, P. Tian, H. Dieks, J. von Gersdorff, H. Newman, H. Schubert, T. Stabingis, A. Wiehe, J. Sobek
Appl. Magn. Reson. 1994, 6, 17.

92. Mechanochemically-Induced Radical Pair Formation in Porphyrin-Quinone and Related Donor-Acceptor Mixtures. Unusual Stability and Zero-Field Splittings.
S. D. Chemerisov, O. Ya. Grinberg, D. S. Tipikin, Ya. S. Lebedev*, H. Kurreck and K. Möbius
Chem. Phys. Lett., 1994, 218, 353.

93. Biomimetische Modelle für das photosynthetische Reaktionszentrum: ein kovalent mit einem redoxaktiven Kronenether verknüpftes Porphyrin
L. Sun, J. v. Gersdorff, D. Niethammer, P. Tian, H. Kurreck*
Angew. Chem. 1994, 106, 2396-2399; Angew. Chem. Int. Ed. Engl. 1994, 33, 2318-2320.

94. Modellreaktionen für die Photosynthese - Photoinduzierter Ladungs- und Energietransfer zwischen verknüpften Porphyrin- und Chinon-Einheiten
H. Kurreck*, M. Huber
Angew. Chem. 1995, 107, 929-947; Angew. Chem. Int. Ed. Engl. 1995, 34, 849-866.

95. Mimicking Primary Processes in Photosynthesis - Covalently Linked Porphyrin Quinones -
H. Kurreck*, S. Aguirre, H. Dieks, J. Gätschmann, J. v. Gersdorff, H. Newman, H. Schubert, M. Speck, T. Stabingis, J. Sobek, P. Tian and A. Wiehe
Radiat. Phys. Chem. 1995, 45, 853-865.

96. Molecular Architecture and Environmental Effects in Intramolecular Electron Transfer: An Electron Paramagnetic Resonance Study.
K. Hasharoni, H. Levanon*, J. Gätschmann, H. Schubert, H. Kurreck, K. Möbius
J. Phys. Chem. 1995, 99, 7514-7521.

97. Mimicking Primary Processes in Photosynthesis - Photochemistry of Covalently Linked Porphyrin Quinones Studied by EPR Spectroscopy
H. Kurreck*, S. Aguirre, S. N. Batchelor, H. Dieks, J. v. Gersdorff, C. W. M. Kay, H. Mößler, H. Newman, D. Niethammer, J. Schlüpmann, J. Sobek, M. Speck, T. Stabingis, L. Sun, P. Tian, A. Wiehe, K. Möbius*
Sol. Energy Mat., 1995, 38, 91-110.

98. Novel Biomimetic Models for Photosynthesis: Porphyrins Covalently Linked to Redox-Active Crown Ether Quinones
L. Sun, J. von. Gersdorff, J. Sobek, H. Kurreck*
Tetrahedron, 1995, 51, 3535-3548.

99. Time-Resolved EPR Studies of Covalently Linked Porphyrin-Crown Ether-Quinones Dissolved in Liquid Crystals
S. N. Batchelor, L. Sun, K. Möbius*, H. Kurreck*
Magn. Reson. Chem., 1995, 33, 28-33.

100. Photochemistry of a Butylene Linked Porphyrin-Quinone Model System Studied by Time-Resolved and Steady State EPR Spectroscopy
C. W. M. Kay, H. Kurreck*, S. N. Batchelor, P. Tian, J. Schlüpmann, K. Möbius
Appl. Magn. Reson., 1995, 9, 459-480.

101. EPR Studies of Photoinduced Electron Transfer Reactions of Cyclohexylene and Butylene Linked Porphyrin Quinones in Reversed Micelles and Liquid Crystals
H. Kurreck*
Mol. Phys. Rep., 1996, 13, 37-54.

102. Continuous-wave electron spin resonance studies of porphyrin and porphyrin-quinone triplet states
B. Kirste*, P. Tian, W. Kalisch, H. Kurreck*
J. Chem. Soc., Perkin Trans. 2, 1995, 2147-2152.

103. Transient Optical Absorption and Time Resolved Resonance Raman Experiments on Covalently Linked Porphyrin-Quinones
M. Fuchs, J. von Gersdorff, H. Dieks, H. Kurreck, K. Möbius, Th. Prisner*
J. Chem. Soc., Faraday Trans., 1996, 92, 949-955.

104. Models for the Photosynthetic Reaction Center: Synthesis and Spectroscopic Characterization of Porphyrins Linked to High Acceptor Strength Cyano Quinones
H. Szelinski, D. Niethammer, P. Tian, H. Kurreck*
Tetrahedron, 1996, 52, 8497-8516.

105. Molecular Structures of Porphyrin-Quinone Models for Electron Transfer
J. Fajer*, K. M. Bargigia, D. Melamed, R. M. Sweet, H. Kurreck, J. von Gersdorff, M. Plato, H.-C. Rohland, G. Elger, K. Möbius
J. Phys. Chem., 1996, 100, 14236-14239.

106. Models for Photosynthesis: EPR Studies of Cyclohexylene Linked Porphyrin Quinones
G. Elger, H. Kurreck*, A. Wiehe, E. Johnen, M. Fuhs, T. Prisner, J. Vrieze
Acta Chem. Scand., 1997, 51, 593-601.

107. EPR Studies of Photoinduced Electron Transfer Reactions in Cyclohexylene Linked Chlorin-Quinones
G. Elger, H. Mößler, P. Tian, E. Johnen, M. Fuhs, H. Kurreck*, K. Möbius
Nukleonika, 1997, 42, 293-306.

108. Determination of Electron Transfer Parameters of a Covalently Linked Porphyrin Quinone with Mesogenic Substituents - Optical Spectroscopic Studies in Solution
J. Zimmermann, J. von Gersdorff, H. Kurreck, B. Röder*
Photochem. Photobiol. B: Biology 1997, 40, 209-217.

109. One-step Synthesis of Functionalized Triptycene-Quinones as Acceptors for Electron-transfer Compounds.
A. Wiehe, M. O. Senge*, H. Kurreck*
Liebigs Ann./Recueil 1997, 1951-1963.

110. Cyclohexylene Bridged Porphyrin Quinones With Variable Acceptor Strength as Biomimetic Models for Photosynthesis: Evidence for Twist-Boat-Conformation
H. Dieks, M. O. Senge, B. Kirste, H. Kurreck*
J. Org. Chem. 1997, 62, 8666-8680.

111. Novel Oxidation Reactions of Sterically Demanding 3,6-Di-tert-butyl Porphyrin-o-quinones to Muconic Anhydride Derivatives
M. Speck, M, O. Senge*, A. Schäfer, H. Kurreck*
Bioorg. Med. Chem. Lett. 1997, 7, 2589-2592.

112. EPR Studies of Photoinduced Electron Transfer in Triad Model Compounds of Photosynthesis
H. Kurreck*, G. Elger, J. von Gersdorff, A. Wiehe, K. Möbius
Appl. Magn. Reson. 1998, 14, 203-215.

113. Time-Resolved EPR Studies of Photoinduced Electron Transfer Reactions in Photosynthetic Model Porphyrin-Quinone Triads
G. Elger, M. Fuhs, P. Müller, J. von Gersdorff, A. Wiehe, H. Kurreck, K. Möbius
Mol. Phys. 1998, 95, 1309-1323.

114. Time-Resolved EPR Spectroscopy of Electron Transfer in a Covalently Linked Porphyrin-Quinone Triad
G. Elger, A. Wiehe, K. Möbius, H. Kurreck
Z. Phys. Chem. 1999, 181-189.

115. Primärprozesse der Photosynthese und ihre Modellierung
J. Kurreck, D. Niethammer, H. Kurreck*
Chem. unserer Zeit 1999, 33, 72-83.

116. Photoinduced Intramolecular Electron Transfer in Covalently Linked Porphyrin-Triptycene-(bis)-Quinone Diads and Triads
O. Korth, A. Wiehe, H. Kurreck, B. Röder*
Chem. Phys., 1999, 246, 363-372.

117. Porphyrin-o-quinones as Model Systems for Electron Transfer and Catecholase Reactions
M. Speck, H. Kurreck, M. Senge*
Eur. J. Org. Chem. 2000, 2303-2314.

118. Multifrequency time-resolved EPR (9.5 GHz and 95 GHz) on covalently linked porphyrin-quinone model systems for photosynthetic electron transfer: effect of molecular dynamics on electron spin polarization
M. Fuhs, G. Elger, A. Osintsev, A. Popov, H. Kurreck, K. Möbius
Mol. Phys. 2000, 98, 1025-1040.

119. EPR and ENDOR of Radicals of Chlorin- and Bacteriochlorin-Quinone model Compounds for Electron Transfer in Photosynthesis
H. Mössler, M. Wittenberg, D. Niethammer, R. K. Mudrassagam, H. Kurreck, M. Huber
Magn. Reson. Chem. 2000, 38, 67-84.

120. Electron Donor-Acceptor Compounds. Exploiting the Triptycene Geometry for the Synthesis of Porphyrin-Quinone Diads, Triads, and a Tetrad
A. Wiehe, M. O. Senge, A. Schäfer, M. Speck, S. Tannert, H. Kurreck
Tetrahedron 2001, 57, 10089-10110.

121. Structure Dependence of Electron Spin Polarization in Zn-Porphyrin-Quinone Ensembles Oriented in a Liquid Crystal
A. Berg, Z. Shuali, H. Levanon, A. Wiehe, H. Kurreck
J. Phys. Chem. A 2001, 105, 10060-10064.

122. Photoinduced electron transfer in Langmuir-Blodgett films between the donor [5,10,15,20-Tetra(pentyl-oxy-biphenyl-oxy-m-phenyl)-porphyrinato]zinc(II) and quinone acceptors, either separated or linked by a cyclohexylene-bridge
O. Korth, Th. Hanke, J. v. Gersdorff, H. Kurreck, B. Röder
Thin Solid Films 2001, 382, 240-245.