A theoretical study of electronic excited states of photosynthetic reaction center in Rhodopseudomonas viridis |
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| Authors: | Ren Yanliang Cheng Lin Wan Jian Li Yongjian Liu Junjun Yang Guangfu Zhang Lihua and Yang Song |
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| Institution: | (1) Key Laboratory of Pesticide & Chemical Biology (CCNU), Ministry of Education and Department of Chemistry, Central China Normal University, Wuhan, 430079, China |
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| Abstract: | The electronic singlet vertical excited states of photosynthetic reaction center (PSRC) in Rhodopseudomonas (Rps.) viridis were investigated by ZINDO and INDO/S methods. The effects of the interactions of pigment-pigment and pigment-protein on
the electronic excitations were examined. The calculation results showed that the interactions of pigment-pigment and pigment-protein
play an important role in reasonably assigning the experimental absorption and circular dichroism (CD) spectra of PSRC in
Rps. virids. By comparing the theoretically computed excited states with the experimental absorption and CD spectra, satisfactory assignments
of the experimental spectroscopic peaks were achieved. |
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| Keywords: | Rhodopseudomonas viridis ZINDO INDO/S circular dichroism spectrum |
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