Additive and classical drude polarizable force fields for linear and cyclic ethers

Igor Vorobyov, Victor M. Anisimov, Shannon Greene, Richard M. Venable, Adam Moser, Richard W. Pastor, Alexander D. MacKerell

Research output: Contribution to journalArticle

184 Citations (Scopus)

Abstract

Empirical force field parameters consistent with the CHARMM additive and classical Drude based polarizable force fields are presented for linear and cyclic ethers. Initiation of the optimization process involved validation of the aliphatic parameters based on linear alkanes and cyclic alkanes. Results showed the transfer to cyclohexane to yield satisfactory agreement with target data; however, in the case of cyclopentane direct transfer of the Lennard-Jones parameters was not sufficient due to ring strain, requiring additional optimization of these parameters for this molecule. Parameters for the ethers were then developed starting with the available aliphatic parameters, with the nonbond parameters for the oxygens optimized to reproduce both gas- and condensed-phase properties. Nonbond parameters for the polarizable model include the use of an anisotropic electrostatic model on the oxygens. Parameter optimization emphasized the development of transferable parameters between the ethers of a given class. The ether models are shown to be in satisfactory agreement with both pure solvent and aqueous solvation properties, and the resulting parameters are transferable to test molecules. The presented force field will allow for simulation studies of ethers in condensed phase and provides a basis for ongoing developments in both additive and polarizable force fields for biological molecules.

Original languageEnglish (US)
Pages (from-to)1120-1133
Number of pages14
JournalJournal of Chemical Theory and Computation
Volume3
Issue number3
DOIs
StatePublished - May 1 2007
Externally publishedYes

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Cyclic Ethers
Ethers
field theory (physics)
ethers
Alkanes
Molecules
Oxygen
Cyclopentanes
Paraffins
Solvation
Ether
Electrostatics
Gases
Cyclohexane
alkanes
optimization
molecules
oxygen
cyclohexane
solvation

ASJC Scopus subject areas

  • Computer Science Applications
  • Physical and Theoretical Chemistry

Cite this

Vorobyov, I., Anisimov, V. M., Greene, S., Venable, R. M., Moser, A., Pastor, R. W., & MacKerell, A. D. (2007). Additive and classical drude polarizable force fields for linear and cyclic ethers. Journal of Chemical Theory and Computation, 3(3), 1120-1133. https://doi.org/10.1021/ct600350s

Additive and classical drude polarizable force fields for linear and cyclic ethers. / Vorobyov, Igor; Anisimov, Victor M.; Greene, Shannon; Venable, Richard M.; Moser, Adam; Pastor, Richard W.; MacKerell, Alexander D.

In: Journal of Chemical Theory and Computation, Vol. 3, No. 3, 01.05.2007, p. 1120-1133.

Research output: Contribution to journalArticle

Vorobyov, I, Anisimov, VM, Greene, S, Venable, RM, Moser, A, Pastor, RW & MacKerell, AD 2007, 'Additive and classical drude polarizable force fields for linear and cyclic ethers', Journal of Chemical Theory and Computation, vol. 3, no. 3, pp. 1120-1133. https://doi.org/10.1021/ct600350s
Vorobyov, Igor ; Anisimov, Victor M. ; Greene, Shannon ; Venable, Richard M. ; Moser, Adam ; Pastor, Richard W. ; MacKerell, Alexander D. / Additive and classical drude polarizable force fields for linear and cyclic ethers. In: Journal of Chemical Theory and Computation. 2007 ; Vol. 3, No. 3. pp. 1120-1133.
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