Molecular Electrostatic Potentials from Invariom Point Charges.
Molecular Electrostatic Potentials from Invariom Point Charges.
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Invariom 点电荷的分子静电势
DOI:
10.1002/cphc.201600213
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发表时间:
2016
期刊:
影响因子:
--
通讯作者:
B. Dittrich
中科院分区:
文献类型:
--
作者:
C. M. Wandtke;J. Lübben;B. Dittrich
A set of look‐up point charges for generating molecular electrostatic potentials is provided. The set relies on atom classification of the invariom database, which has already been applied to assign aspherical scattering factors in single‐crystal X‐ray diffraction. The focus of the investigation is on improving the accuracy of electrostatic potentials calculated by using tabulated point charges. In this respect, the performance of invariom point charges is compared with 1) those from a restrained fit to the electrostatic potential directly following quantum‐chemical DFT computations, 2) semi‐empirical AM1‐bcc charges, and 3) conceptually similar TPACM4 look‐up charges. Invariom classification gives charges that perform better than those from TPACM4, although tabulated charges remain inferior to those from molecule‐specific computations. Point‐charge electrostatic potentials also agree favorably with those from charge‐density studies on the basis of X‐ray experiments, without requiring the considerable effort of the latter.
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影响因子:
--
作者:
B. Dittrich;R. Flaig;T. Koritsanszky;H. Krane;W. Morgenroth;P. Luger
通讯作者:
P. Luger
DOI:
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发表时间:
1976
期刊:
影响因子:
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作者:
R. Stewart
通讯作者:
R. Stewart
DOI:
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发表时间:
2004
期刊:
影响因子:
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作者:
Birger Dittrich;Tibor Koritsanszky;P. Luger
通讯作者:
P. Luger
DOI:
--
发表时间:
2009
期刊:
Physical Chemistry, Chemical Physics - PCCP
影响因子:
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作者:
B. Dittrich;J. Warren;F. Fabbiani;W. Morgenroth;B. Corry
通讯作者:
B. Corry
DOI:
10.1107/s0108767306026298
发表时间:
2006
期刊:
Acta crystallographica. Section A, Foundations of crystallography
影响因子:
--
作者:
A. Volkov;H. F. King;P. Coppens;L. Farrugia
通讯作者:
L. Farrugia