FLUORESCENCE FROM THE S(1)(2(1)AG) STATE OF ALL-TRANS-BETA-CAROTENE

被引：28

作者：

BONDAREV, SL ^{[1
]}

KNYUKSHTO, VN ^{[1
]}

机构：

[1] BELARUS ACAD SCI, INST MOLEC & ATOM PHYS, MINSK 220602, BELARUS

来源：

CHEMICAL PHYSICS LETTERS | 1994年 / 225卷 / 4-6期

关键词：

D O I：

10.1016/0009-2614(94)87092-6

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：

S1 --> S0 fluorescence spectra of all-trans-beta-carotene in n-hexane, toluene, and carbon disulfide at room temperature were recorded. The shape and maxima of these spectra at 830 +/- 10 nm were the same in all three solvents. The energy of the S1 (2 1A(g)) state was found at 13200 +/- 300 cm-1. The fluorescence quantum yields of all-trans-beta-carotene for the above-mentioned solvents are equal to (0.5 +/- 0.2) x 10(-5), (0.8 +/- 0.2) x 10(-5) and (2.0 +/- 0.3) x 10(-5), respectively. The results are discussed in terms of energy transfer from the all-trans-beta-carotene S1 state to chlorophylls in vivo.

引用

页码：346 / 350

页数：5

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