DIRECT MEASUREMENT OF THE LOW-LYING SINGLET EXCITED (2 AG-1) STATE OF A LINEAR CAROTENOID, NEUROSPORENE, IN SOLUTION

被引：25

作者：

MIMURO, M

NAGASHIMA, U

NAGAOKA, S

TAKAICHI, S

YAMAZAKI, I

NISHIMURA, Y

KATOH, T

机构：

[1] OCHANOMIZU UNIV,DEPT INFORMAT SCI,TOKYO 112,JAPAN

[2] NIPPON MED COLL,BIOL LAB,KAWASAKI 211,JAPAN

[3] EHIME UNIV,FAC SCI,DEPT CHEM,MATSUYAMA,EHIME 790,JAPAN

[4] KYOTO UNIV,FAC SCI,DEPT BOT,KYOTO 606,JAPAN

[5] HOKKAIDO UNIV,FAC ENGN,DEPT CHEM PROC ENGN,SAPPORO,HOKKAIDO 060,JAPAN

来源：

CHEMICAL PHYSICS LETTERS | 1993年 / 204卷 / 1-2期

关键词：

D O I：

10.1016/0009-2614(93)85611-Q

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 forbidden singlet excited (2(1)Ag) state of a linear carotenoid, neurosporene, in solution was directly detected by a single-photon absorption spectrum at 20-degrees-C. The absorption maximum in n-hexane was located at 623 +/- 2 nm with its extinction coefficient of about 60 and an oscillator strength of 3.4 X 10(-4). This is the first identification of the S1 state of long polyenes by the single-photon absorption spectroscopy, which leads to understanding of the excited state of polyenes by using parameters directly obtained by absorption spectrum.

引用

页码：101 / 105

页数：5

共 25 条

[1] DUAL SINGLET-STATE EMISSION IN A SERIES OF MINI-CAROTENES [J].