ELECTRON-PHONON COUPLING IN THE B820 SUBUNIT FORM OF LH1 STUDIED BY TEMPERATURE-DEPENDENCE OF OPTICAL-SPECTRA

被引:52
作者
PULLERITS, T [1 ]
VANMOURIK, F [1 ]
MONSHOUWER, R [1 ]
VISSCHERS, RW [1 ]
VANGRONDELLE, R [1 ]
机构
[1] FREE UNIV AMSTERDAM,FAC PHYS & ASTRON,1007 MC AMSTERDAM,NETHERLANDS
关键词
D O I
10.1016/0022-2313(94)90387-5
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
The temperature dependence of absorption and selectively excited fluorescence spectra of B820 subunit of the bacterial light-harvesting antenna is modeled by using the impurity center theory of optical spectra. In order to get acceptable agreement between theory and experiment, we suggest that due to the dimeric nature of B820, the electronic transition is weakly coupled to a rather broad distribution of protein phonons.
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页码:168 / 171
页数:4
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