liu.seSearch for publications in DiVA
Change search
ReferencesLink to record
Permanent link

Direct link
Multipole moments for embedding potentials: Exploring different atomic allocation algorithms
Not Found:Linkoping Univ, Dept Phys Chem and Biol, SE-58183 Linkoping, Sweden; University of Southern Denmark, Denmark.
University of Southern Denmark, Denmark; Ecole Polytech Federal Lausanne, Switzerland.
University of Southern Denmark, Denmark.
University of Southern Denmark, Denmark.
2016 (English)In: Journal of Computational Chemistry, ISSN 0192-8651, E-ISSN 1096-987X, Vol. 37, no 20, 1887-1896 p.Article in journal (Refereed) PublishedText
Abstract [en]

Polarizable quantum mechanical (QM)/molecular mechanics (MM)-embedding methods are currently among the most promising methods for computationally feasible, yet reliable, production calculations of localized excitations and molecular response properties of large molecular complexes, such as proteins and RNA/DNA, and of molecules in solution. Our aim is to develop a computational methodology for distributed multipole moments and their associated multipole polarizabilities which is accurate, computationally efficient, and with smooth convergence with respect to multipole order. As the first step toward this goal, we herein investigate different ways of obtaining distributed atom-centered multipole moments that are used in the construction of the electrostatic part of the embedding potential. Our objective is methods that not only are accurate and computationally efficient, but which can be consistently extended with site polarizabilities including internal charge transfer terms. We present a new way of dealing with well-known problems in relation to the use of basis sets with diffuse functions in conventional atomic allocation algorithms, avoiding numerical integration schemes. Using this approach, we show that the classical embedding potential can be systematically improved, also when using basis sets with diffuse functions, and that very accurate embedding potentials suitable for QM/MM embedding calculations can be acquired. (c) 2016 Wiley Periodicals, Inc.

Place, publisher, year, edition, pages
WILEY-BLACKWELL , 2016. Vol. 37, no 20, 1887-1896 p.
Keyword [en]
distributed multipole moments; electrostatic potential; QM; MM embedding
National Category
Theoretical Chemistry
Identifiers
URN: urn:nbn:se:liu:diva-130375DOI: 10.1002/jcc.24403ISI: 000379690900004PubMedID: 27187063OAI: oai:DiVA.org:liu-130375DiVA: diva2:952812
Note

Funding Agencies|Danish Council for Independent Research (DFF) through the Sapere Aude research career program; Danish Council for Independent Research (the Sapere Aude program); Villum Foundation; Lundbeck Foundation

Available from: 2016-08-15 Created: 2016-08-05 Last updated: 2016-08-15

Open Access in DiVA

No full text

Other links

Publisher's full textPubMed
In the same journal
Journal of Computational Chemistry
Theoretical Chemistry

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 23 hits
ReferencesLink to record
Permanent link

Direct link