Electronic and Vibrational Coherence in Photosynthetic Cofactors: Comparison of Solutions and Proteins

Autor:	L. D. Book, D. C. Arnett, Norbert F. Scherer, P. L. Dutton, C. C. Moser
Rok vydání:	1999
Předmět:	Photosynthetic reaction centre biology Diffusion Dephasing Chromophore biology.organism_classification Photosynthesis Photochemistry Biochemistry Atomic and Molecular Physics and Optics Rhodobacter sphaeroides chemistry.chemical_compound chemistry Pyridine Spectroscopy Coherence (physics)
Zdroj:	Laser Chemistry. 19:195-199
ISSN:	1476-3516 0278-6273
DOI:	10.1155/1999/16293
Popis:	The interaction between photosynthetic cofactors and the surrounding bath or protein environment is addressed via experimental measurements of the optical coherence responses from bacteriochlorophylla (Bchla) chromophores within the photosynthetic reaction center (RC) of Rhodobacter sphaeroides and solutions of Bchla monomers in THF and pyridine. The results indicate that both the spectrum of fluctuations and chromophore bath coupling strengths vary between solutions and protein. In particular, the protein environment yields faster dephasing, faster spectral diffusion, and significantly more inhomogeneity than solutions.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::9c8d16a98ccc146693d9cbd0b52a7535 https://doi.org/10.1155/1999/16293 Zobrazit plný text záznamu Plný text