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Investigation of the electronic structure of the primary electron donor in bacterial photosynthesis — Measurements of the anisotropy of the electronic G-tensor using high-field/high-frequency EPR

✍ Scribed by M. Huber; J.T. Törring; M. Plato; U. Fink; W. Lubitz; R. Feick; C.C. Schenck; K. Möbius

Publisher
Elsevier Science
Year
1995
Tongue
English
Weight
426 KB
Volume
38
Category
Article
ISSN
0927-0248

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✦ Synopsis

Cation radicals of the primary electron donor (D+) in bacterial photosynthesis were investigated by high field, high frequency (95 GHz) EPR. Measurements on frozen solutions of D+, a dime ric 1T-cation radical, of various organisms (Rps. viridis, Rh. sphaeroides, Chlorofiexus aurantiacus and a heterodimer mutant) are reported, revealing differences in the principal values of the G-tensor. Elements of a theory relating the magnitudes of G principal values to the electronic structure are discussed.

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