Balakrishnan, G and Babaei, A and McQuillan, AJ and Umapathy, S (1998) Resonance Raman and infrared spectral studies on radical anions of model photosynthetic reaction center quinones (naphthoquinone derivatives). In: Journal of Biomolecular Structure & Dynamics, 16 (01). pp. 123-131.
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Quinones play a vital role in the processes of electron transfer in bacterial photosynthetic reaction centers. It is of interest to investigate photochemical reactions involving quinones with a view to elucidate structure-function relationships in biological processes. Resonance Raman and FTIR spectra of electrochemically generated radical anions of 2-methyl-1,4-naphthoquinone, and 2-methyl-3-phytyl-1,4-naphthoquinone, also known as Vitamin K-3 and Vitamin K-1, respectively, (model compound for Q(A) in Rhodopseudomonas viridis, a bacterial photosynthetic reaction center) have been reported. The same study has also been extended to 1,4-naphthoquinone for comparison. The vibrational assignments were carried out on the basis of comparison with our earlier time resolved resonance Raman studies on photochemically generated radical anions of 1,4-naphthoquinone and 2-methyl-1,4-naphthoquinone (Balakrishnan er al., J. Phys. Chern., 100, (1996), 16472-16478). These in vitro results have been compared with the reported vibrational spectral data under in vivo conditions.
| Item Type: | Journal Article |
|---|---|
| Publication: | Journal of Biomolecular Structure & Dynamics |
| Publisher: | Adenine Press |
| Additional Information: | Copyright of this article belongs to Adenine Press. |
| Department/Centre: | Division of Chemical Sciences > Inorganic & Physical Chemistry |
| Date Deposited: | 21 Dec 2009 10:27 |
| Last Modified: | 21 Dec 2009 10:27 |
| URI: | http://eprints.iisc.ac.in/id/eprint/19128 |
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