Toward Enabling Large-Scale Open-Shell Equation-of-Motion Coupled Cluster Calculations: Triplet States of β-Carotene

被引:10
|
作者
Hu, Han-Shi [1 ]
Bhaskaran-Nair, Kiran [1 ]
Apra, Edoardo [1 ]
Govind, Niranjan [1 ]
Kowalski, Karol [1 ]
机构
[1] Pacific NW Natl Lab, William R Wiley Environm Mol Sci Lab, Richland, WA 99352 USA
来源
JOURNAL OF PHYSICAL CHEMISTRY A | 2014年 / 118卷 / 39期
关键词
EXCITED ELECTRONIC STATES; SYMMETRY-ADAPTED-CLUSTER; GAUSSIAN-BASIS SETS; SINGLET FISSION; CONFIGURATION-INTERACTION; EXCITATION-ENERGIES; WAVE-FUNCTION; MOLECULAR-SYSTEMS; DOUBLES MODEL; CLOSED-SHELL;
D O I
10.1021/jp5021214
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
In this paper we discuss the application of novel parallel implementation of the coupled cluster (CC) and equation-of-motion coupled cluster methods (EOMCC) in calculations of excitation energies of triplet states in beta-carotene. Calculated excitation energies are compared with experimental data, where available. We also provide a detailed description of the new parallel algorithms for iterative CC and EOMCC models involving singles and doubles excitations.
引用
收藏
页码:9087 / 9093
页数:7
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