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M. G. Khrenova, A. V. Nemukhin, B. L. Grigorenko, A. A. Moskovsky

Optical transitions in light harvesting complexes of the bacterial photosynthetic centers

Abstract

Geometry parameters of the model structure of the bacterial photosynthetic center composed of the light harvesting antenna complex, reaction center, lipid layers, solvent shells of water molecules are optimized by using quantum mechanics – molecular mechanics methods, and optical absorption spectra of bacteriochlorophyll in quantum subsystem are estimated. It is shown that band positions in the clusters of pigments are shifted to the red as compared to the spectra of individual bacteriochlorophyll molecules.
Key words: photosynthesis, light harvesting complexes, bacteriochlorophyll, optical spectra.
Moscow University Chemistry Bulletin.
2014, Vol. 55, No. 4, P. 199
   

Copyright (C) Chemistry Dept., Moscow State University, 2002
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