Origin-independent two-photon circular dichroism calculations in coupled cluster theory.

Origin-independent two-photon circular dichroism calculations in coupled cluster theory.
复制标题

耦合簇理论中与原点无关的双光子圆二色性计算

DOI:
10.1039/c6cp01653g
复制
发表时间:
2016
期刊:
Physical chemistry chemical physics : PCCP
影响因子:
--
通讯作者:
Antonio Rizzo
Antonio Rizzo
中科院分区:
--
文献类型:
--
作者:
Daniel H. Friese;Christof Hättig;Antonio Rizzo

文献摘要

参考文献

被引文献

相似文献

我们首次提出了用耦合团簇方法处理双光子圆二向色性(TPCD)的非原点方法。评估了该方法在基组和不同耦合簇方法的选择上的行为。我们还给出了CC2和密度泛函理论的结果的比较。关于基集,我们注意到,在大多数情况下,为了得到合理收敛的结果,需要一个增广的三个Zeta基或一个双重的增广的双Zeta基。在不同耦合星团方法的比较中,CCSD、CC3和CC2的结果在大多数情况下是非常相似的,而CCS的结果与高层的结果有很大的不同。然而,这项原则证明研究也表明,需要进一步将DFT和CC2与准确的耦合集群参考值(例如CCSD或CC3)进行基准比较。
We present the first origin-independent approach for the treatment of two-photon circular dichroism (TPCD) using coupled cluster methods. The approach is assessed concerning its behavior on the choice of the basis set and different coupled cluster methods. We also provide a comparison of results from CC2 with those from density functional theory using the CAM-B3LYP functional. Concerning the basis set we note that in most cases an augmented triple zeta basis or a doubly augmented double zeta basis is needed for reasonably converged results. In the comparison of different coupled cluster methods results from CCSD, CC3 and CC2 have been found to be quite similar in most cases, while CCS results differ remarkably from the results at the higher levels. However, this proof-of-principle study also shows that further benchmarking of DFT and CC2 against accurate coupled cluster reference values (e.g. CCSD or CC3) is needed.
DOI: --
发表时间: 2004
期刊:
影响因子: --
作者:
T. B. Pedersen;H. Koch;L. Boman;A. S. D. Merás
通讯作者: A. S. D. Merás
DOI: 10.1088/0022-3700/20/9/011
发表时间: 1987
期刊: Journal of Physics B
影响因子: --
作者:
W. J. Meath;E. A. Power
通讯作者: E. A. Power
DOI: 10.1002/chem.201502762
发表时间: 2015-12-07
期刊: Chemistry (Weinheim an der Bergstrasse, Germany)
影响因子: --
作者:
Friese DH;Mikhaylov A;Krzeszewski M;Poronik YM;Rebane A;Ruud K;Gryko DT
通讯作者: Gryko DT
DOI: 10.1063/1.477931
发表时间: 1999-02-08
影响因子: 4.4
作者:
Pedersen, TB;Koch, H;Ruud, K
通讯作者: Ruud, K
DOI: 10.1063/1.4930017
发表时间: 2015
期刊: The Journal of chemical physics
影响因子: --
作者:
D. Friese
通讯作者: D. Friese