Insights into the influence of dispersion correction in the theoretical treatment of guanidine‐quinoline copper(I) complexes

Insights into the influence of dispersion correction in the theoretical treatment of guanidine‐quinoline copper(I) complexes
复制标题

深入了解色散校正对胍喹啉铜 (I) 络合物理论处理的影响

DOI:
10.1002/jcc.23706
复制
发表时间:
1950
影响因子:
3
通讯作者:
S. Herres-Pawlis
S. Herres-Pawlis
中科院分区:
化学3区
文献类型:
--
作者:
A. Hoffmann;R. Grunzke;S. Herres-Pawlis

文献摘要

参考文献

被引文献

相似文献

对于空间效应的描述,色散校正在密度泛函理论中很重要。通过对空间阻碍的胍-喹啉铜双(螯合物)络合物的研究,我们可以表明正确的描述需要使用贝克-约翰逊(BJ)阻尼进行现代色散校正,并且早期的色散校正是不够的。 Ahlrichs级数的三zeta基组def2-TZVP对于结构描述是平衡且收敛的。对于泛函,最好的结构描述是通过 TPSSh 泛函获得的,但 B3LYP 也非常适合。配体取代基的切割会导致扭曲,从而限制了此类计算的预测能力。我们建议计算“完整”化学系统,并使用 BJ 阻尼进行色散校正。在对铜双(螯合)配合物的进一步分析中,我们发现尽管电荷转移激发起作用,光学和拉曼光谱的理论描述并没有受到色散的太大影响,并且B3LYP/def2-TZVP是最佳选择。因此,我们可以得出这样的结果:具有色散的正确结构描述是后续计算步骤的重要基础。 © 2014 Wiley 期刊公司。
For the description of steric effects, dispersion correction is important in density functional theory. By investigation of sterically encumbered guanidine‐quinoline copper bis(chelate) complexes, we could show that the correct description requires modern dispersion correction using Becke–Johnson (BJ) damping and that earlier dispersion corrections are not sufficient. The triple‐zeta basis set def2‐TZVP of the Ahlrichs series is balanced and converged for the structural description. With regard to functionals, the best structural description is obtained with the TPSSh functional but B3LYP is very suited as well. Cutting of ligand substituents leads to distortions which limit the predictive ability of such calculations. We recommend the calculation of “full” chemical systems with inclusion of dispersion correction using BJ damping. In the further analysis of the regarded copper bis(chelate) complexes, we found that the theoretical description of optical and Raman spectra is not much affected by the dispersion although charge transfer excitations come into play and that B3LYP/def2‐TZVP is the best choice. Hence, we can derive the result that the correct structural description with dispersion serves as crucial basis for subsequent calculation steps. © 2014 Wiley Periodicals, Inc.
被困在复合物中:具有双烯丙基结构的 1,2,4,5-四(四甲基胍)苯自由基阳离子 (ttmgb+·)
DOI: --
发表时间: 2010
期刊:
影响因子: --
作者:
Christine Trumm;O. Hübner;E. Kaifer;Hans‐Jörg Himmel
通讯作者: Hans‐Jörg Himmel
密度泛函理论中的分子间力 III. Ar(1S)-CO(1Σ) 相互作用的多性质分析。
DOI: --
发表时间: 1999
期刊:
影响因子: --
作者:
F. Gianturco;F. Paesani;M. Laranjeira;V. Vassilenko;M. Cunha
通讯作者: M. Cunha
DOI: 10.1063/1.4720492
发表时间: 2012-05-28
影响因子: 4.4
作者:
Bixner, Oliver;Lukes, Vladimir;Christensson, Niklas
通讯作者: Christensson, Niklas
DOI: 10.1002/anie.200600351
发表时间: 2006-01-01
影响因子: 16.6
作者:
Wuertele, Christian;Gaoutchenova, Ekaterina;Schindler, Siegfried
通讯作者: Schindler, Siegfried
MoSGrid Science Gateway - 分子模拟的完整解决方案。
DOI: 10.1021/ct500159h
发表时间: 2014
影响因子: 5.5
作者:
Jens Krüger;Richard Grunzke;S. Gesing;Sebastian Breuers;A. Brinkmann;Luis de la Garza;O. Kohlbacher;Martin Kruse;W. Nagel;Lars Packschies;R. Müller;Patrick Schäfer;Charlotta P. I. Schärfe;T. Steinke;Tobias Schlemmer;K. Warzecha;A. Zink;S. Herres‐Pawlis
通讯作者: S. Herres‐Pawlis