Coupled cluster theory in the condensed phase within the singles‐T density scheme for the environment response
Coupled cluster theory in the condensed phase within the singles‐T density scheme for the environment response
复制标题
环境响应的单 T 密度方案中凝聚相的耦合簇理论
DOI:
10.1002/wcms.1463
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发表时间:
2020
期刊:
影响因子:
--
通讯作者:
Caricato, Marco
中科院分区:
文献类型:
--
作者:
Caricato, Marco
Reliable simulations of molecules in condensed phase require the combination of an accurate quantum mechanical method for the core region, and a realistic model to describe the interaction with the environment. Additionally, this combination should not significantly increase the computational cost of the calculation compared to the corresponding in vacuo case. In this review, we describe the combination of methods based on coupled cluster (CC) theory with polarizable classical models for the environment. We use the polarizable continuum model (PCM) of solvation to discuss the equations, but we also show how the same theoretical framework can be extended to polarizable force fields. The theory is developed within the perturbation theory energy and singles‐T density (PTES) scheme, where the environmental response is computed with the CC single excitation amplitudes as an approximation for the full one‐particle reduced density. The CC‐PTES combination provides the best compromise between accuracy and computational effort for CC calculations in condensed phase, because it includes the response of the environment to the correlation density at the same computational cost of in vacuo CC. We discuss a number of numerical applications for ground and excited state properties, based on the implementation of CC‐PTES with single and double excitations (CCSD‐PTES), which show the reliability and computational efficiency of the method in reproducing experimental or full‐CC data.This article is characterized under:Electronic Structure Theory > Ab Initio Electronic Structure MethodsElectronic Structure Theory > Combined QM/MM MethodsSoftware > Quantum Chemistry
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影响因子:
4.4
作者:
M. Caricato;G. Scalmani;M. Frisch
通讯作者:
M. Frisch
影响因子:
4.4
作者:
M. Caricato
通讯作者:
M. Caricato
DOI:
--
发表时间:
2002
期刊:
影响因子:
--
作者:
J. Kongsted;A. Osted;K. Mikkelsen;O. Christiansen
通讯作者:
O. Christiansen
DOI:
--
发表时间:
2015
期刊:
影响因子:
--
作者:
Ryoichi Fukuda;Masahiro Ehara
通讯作者:
Masahiro Ehara
影响因子:
5.5
作者:
J. C. Howard;J. C. Womack;J. Dziedzic;Chris-Kriton Skylaris;Benjamin P. Pritchard;T. Crawford
通讯作者:
J. C. Howard;J. C. Womack;J. Dziedzic;Chris-Kriton Skylaris;Benjamin P. Pritchard;T. Crawford