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arXiv 1502.07957physics.chem-ph
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冻结密度嵌入法模拟空穴迁移反应的性能

Performance of Frozen Density Embedding for Modeling Hole Transfer Reactions

Pablo Ramos, Markos Papadakis, Michele Pavanello

摘要:

我们已经进行了一个彻底的基准FDE-ET方法计算孔传输耦合。我们考虑了10个交换相关泛函,3个非加性动能泛函和3个基组。总的来说,我们得出结论,平均相对无符号误差为7%,PBE功能加上PW 91 k非添加剂动能功能和TZP基组构成最稳定,最准确的理论水平的空穴传输耦合计算。FDE-ET方法被认为是一个很好的工具,计算非绝热耦合空穴转移反应。

英文摘要:

We have carried out a thorough benchmark of the FDE-ET method for calculating hole transfer couplings. We have considered 10 exchange-correlation functionals, 3 non-additive kinetic energy functionals and 3 basis sets. Overall, we conclude that with a 7% mean relative unsigned error, the PBE functional coupled with the PW91k non-additive Kinetic energy functional and a TZP basis set constitutes the most stable, and accurate level of theory for hole-transfer coupling calculations. The FDE-ET method is found to be an excellent tool for computing diabatic couplings for hole transfer reactions.

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