Carotenoids and related polyenes. Part 4.1 Synthesis of carotenoid analogues containing a conjugated carbonyl group and their fluorescence properties
作者:Yumiko Yamano、Mamoru Mimuro、Masayoshi Ito
DOI:10.1039/a702815f
日期:——
Fluorescence properties of several synthetic carotenoid analogues
have been investigated in order to assess the relationship between
molecular structures and function as a photosynthetic antenna. The
origin of fluorescence is determined by two factors; the length of the
conjugated double bond system and the presence of a carbonyl group. For
efficient energy transfer to chlorophyll a, eight conjugated
double bonds and an associated carbonyl group are required, which
ensures that fluorescence occurs from the S1 state.
为了评估分子结构与作为光合天线的功能之间的关系,研究了几种合成类胡萝卜素类似物的荧光特性。荧光的起源由两个因素决定:共轭双键系统的长度和羰基的存在。为了有效地将能量转移到叶绿素a,要求具有八个共轭双键和一个相关的羰基,这确保了荧光从S1态发生。