EXCITED STATE DYNAMICS IN FMO ANTENNA COMPLEXES FROM PHOTOSYNTHETIC GREEN SULFUR BACTERIA : A KINETIC MODEL
EXCITED STATE DYNAMICS IN FMO ANTENNA COMPLEXES FROM PHOTOSYNTHETIC GREEN SULFUR BACTERIA : A KINETIC MODEL
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光合绿硫细菌 FMO 天线复合体中的激发态动力学：动力学模型
DOI：
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发表时间：
1999
期刊：
影响因子：
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通讯作者：
T. Aartsma
中科院分区：
文献类型：
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作者：
S. Vulto;M. Baat;S. Neerken;F. Nowak;H. Amerongen;J. Amesz;T. Aartsma
我们模拟了绿色硫磺细菌Cllorobium(C.)的fmo(FeNa−Matthews−olson)细菌-叶绿素a-蛋白质复合体的激发态动力学。Tepiumum和Prosthecoloris(P.)Aestuarii在低温下的激子模型。该模拟基于以前的出版物(Louwe，R.J.W.；Vrieze，J.；Hoff，A.J.；Aartsma，T.J.；J.Phys)中描述的电子结构。化学。1997年，101,11280。首页--期刊主要分类--期刊细介绍--期刊题录与文摘--期刊详细文摘内容化学。1998、102、9577)。用线性电子声子耦合描述激子态间的驰豫，作为系统哈密顿量中的微扰项。将模拟结果与不同激发波长下泵浦−探测的实验数据进行了比较。对于被测毛虫，计算的动力学与测量的动力学之间有很好的一致性。对于P.aestuarii来说，模拟就不那么令人满意了。
We have simulated the excited state dynamics of the FMO (Fenna−Matthews−Olson) bacteriochlorophyll a-protein complexes of the green sulfur bacteria Chlorobium (C.) tepidum and Prosthecochloris (P.) aestuarii at cryogenic temperature in terms of an exciton model. The simulation is based on the electronic structure, as described in previous publications (Louwe, R. J. W.; Vrieze, J.; Hoff, A. J.; Aartsma, T. J.; J. Phys. Chem. 1997, 101, 11280. Vulto, S. I. E.; de Baat, M. A.; Louwe, R. J. W.; Permentier, H. P.; Neef, T.; Miller, M.; van Amerongen, H.; Aartsma, T. J. J. Phys. Chem. 1998, 102, 9577). Relaxation between exciton states is described by linear electron phonon coupling as a perturbation term in the Hamiltonian of the system. The simulation was compared with experimental data obtained by pump−probe measurements with various wavelengths of excitation. For C. tepidum, a quite good agreement was obtained between the calculated and measured dynamics. For P. aestuarii, the simulations are less satisfact...