THE 2 1AG- STATE OF A CAROTENOID BOUND TO THE CHROMATOPHORE MEMBRANE OF RHODOBACTER-SPHAEROIDES 2.4.1 AS REVEALED BY TRANSIENT RESONANCE RAMAN-SPECTROSCOPY

被引：24

作者：

KUKI, M

HASHIMOTO, H

KOYAMA, Y

机构：

[1] Faculty of Science, Kwansei Gakuin University, Nishinomiya, 662, Uegahara

来源：

CHEMICAL PHYSICS LETTERS | 1990年 / 165卷 / 05期

关键词：

D O I：

10.1016/0009-2614(90)85452-I

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The transient Raman spectrum of the S1 and T1 states of carotenoids bound to the chromatophore membranes of Rhodobacter sphaeroides 2.4.1 (recorded by using 532 nm, ≈ 100 ps, ML-QS pulse trains as a difference spectrum of high power minus low power) has been compared with the S1 and T1 Raman spectra of sphaeroidene and the T1 Raman spectrum of sphaeroidenone. The vibronically coupled CC stretching Raman line of bound sphaeroidene at 1766 cm-1 identifies the 21Ag- state as the S1 state, and its frequency, which is lowered by 51 cm-1 from that of free sphaeroidene, indicates weakened vibronic coupling for the bound carotenoid. © 1990.

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页码：417 / 422

页数：6

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