Molecular dynamics simulation of ionic liquids:: The effect of electronic polarizability

被引:388
作者
Yan, TY
Burnham, CJ
Del Pópolo, MG
Voth, GA [1 ]
机构
[1] Univ Utah, Dept Chem, Salt Lake City, UT 84112 USA
[2] Univ Utah, Henry Eyring Ctr Theoret Chem, Salt Lake City, UT 84112 USA
[3] Queens Univ Belfast, Sch Math & Phys, Atom Simulat Grp, Belfast BT7 1NN, Antrim, North Ireland
关键词
D O I
10.1021/jp047619y
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
An electronically polarizable model has been developed for the ionic liquid 1-ethyl-3-methylimidazolium nitrate (EMIM+/NO3-), Molecular dynamics simulation studies were then performed on both the polarizable and nonpolarizable versions of the model. Comparisons of shear viscosity and diffusion constants at 400 K show that the effects of polarizability are quite substantial and the polarizable model results are in better agreement with the experimental values.
引用
收藏
页码:11877 / 11881
页数:5
相关论文
共 30 条
[1]   GENERALIZED HYDRODYNAMICS AND ANALYSIS OF CURRENT CORRELATION FUNCTIONS [J].
AILAWADI, NK ;
RAHMAN, A ;
ZWANZIG, R .
PHYSICAL REVIEW A, 1971, 4 (04) :1616-&
[2]   GENERALIZED TRANSPORT-COEFFICIENTS FOR HARD-SPHERES [J].
ALLEY, WE ;
ALDER, BJ .
PHYSICAL REVIEW A, 1983, 27 (06) :3158-3173
[3]  
[Anonymous], CCP5 Q
[4]   A WELL-BEHAVED ELECTROSTATIC POTENTIAL BASED METHOD USING CHARGE RESTRAINTS FOR DERIVING ATOMIC CHARGES - THE RESP MODEL [J].
BAYLY, CI ;
CIEPLAK, P ;
CORNELL, WD ;
KOLLMAN, PA .
JOURNAL OF PHYSICAL CHEMISTRY, 1993, 97 (40) :10269-10280
[5]   Accurate ab initio quantum chemical determination of the relative energetics of peptide conformations and assessment of empirical force fields [J].
Beachy, MD ;
Chasman, D ;
Murphy, RB ;
Halgren, TA ;
Friesner, RA .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1997, 119 (25) :5908-5920
[6]  
Boon JP, 1991, Molecular Hydrodynamics
[7]   The parametrization of a Thole-type all-atom polarizable water model from first principles and its application to the study of water clusters (n=2-21) and the phonon spectrum of ice Ih [J].
Burnham, CJ ;
Li, JC ;
Xantheas, SS ;
Leslie, M .
JOURNAL OF CHEMICAL PHYSICS, 1999, 110 (09) :4566-4581
[8]   Orientational dynamics of the ionic organic liquid 1-ethyl-3-methylimidazolium nitrate [J].
Cang, H ;
Li, J ;
Fayer, MD .
JOURNAL OF CHEMICAL PHYSICS, 2003, 119 (24) :13017-13023
[9]   On the structure and dynamics of ionic liquids [J].
Del Pópolo, MG ;
Voth, GA .
JOURNAL OF PHYSICAL CHEMISTRY B, 2004, 108 (05) :1744-1752
[10]   Theoretical calculation of the structure of a polarizable-ionic fluid [J].
Gray-Weale, A ;
Madden, PA .
MOLECULAR PHYSICS, 2003, 101 (11) :1761-1779