Recent progress in atomistic modeling of light-harvesting complexes: a mini review

被引:0
|
作者
Sayan Maity
Ulrich Kleinekathöfer
机构
[1] Jacobs University Bremen,Department of Physics and Earth Sciences
来源
Photosynthesis Research | 2023年 / 156卷
关键词
Multiscale modeling; Light-harvesting complexes; QM/MM simulations; Excited state calculations; Spectral densities; Exciton dynamics;
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学科分类号
摘要
In this mini review, we focus on recent advances in the atomistic modeling of biological light-harvesting (LH) complexes. Because of their size and sophisticated electronic structures, multiscale methods are required to investigate the dynamical and spectroscopic properties of such complexes. The excitation energies, in this context also known as site energies, excitonic couplings, and spectral densities are key quantities which usually need to be extracted to be able to determine the exciton dynamics and spectroscopic properties. The recently developed multiscale approach based on the numerically efficient density functional tight-binding framework followed by excited state calculations has been shown to be superior to the scheme based on pure classical molecular dynamics simulations. The enhanced approach, which improves the description of the internal vibrational dynamics of the pigment molecules, yields spectral densities in good agreement with the experimental counterparts for various bacterial and plant LH systems. Here, we provide a brief overview of those results and described the theoretical foundation of the multiscale protocol.
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页码:147 / 162
页数:15
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