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Deriving Static Atomic Multipoles from the Electrostatic Potential

delete2013-12-05
delete29
PRE
AI
C
Christian Krämer *
T
Tristan Bereau
A
Alexander Spinn
K
Klaus R. Liedl
P
Peter Gedeck
M
Markus Meuwly
DOI:10.1021/ci400548wdelete
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Abstract

Abstract

En 中文
The description of molecular systems using multipolar electrostatics calls for automated methods to fit the necessary parameters. In this paper, we describe an open-source software package that allows fitting atomic multipoles (MTPs) from the ab initio electrostatic potential by adequate atom typing and judicious assignment of the local axis system. By enabling the simultaneous fit of several molecules and/or conformations, the package addresses issues of parameter transferability and lack of sampling for buried atoms. We illustrate the method by studying a series of small alcohol molecules, as well as various conformations of protonated butylamine.
Keywords:
POLARIZABLE MOLECULAR-MECHANICS
FORCE-FIELD
CHARGE-DISTRIBUTION
DYNAMICS
MODELS
PARAMETERIZATION
SIMULATION
ENERGIES
DENSITY
SETS

Journal

Journal of Chemical Information and Modeling cover
Journal of Chemical Information and Modeling
IF:
5.3
Papers:
9.1K
Citations:
4.0W

Organization

U
University of Innsbruck
Scholars:
9.8K
Papers: 8.6K
Citations: 8
U
University of Basel
Scholars:
3.1W
Papers: 2.4W
Citations: 38
N
Novartis
Scholars:
1.8W
Papers: 9.5K
Citations: 2.9K
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