Diffusion Monte Carlo simulations of methanol-water clusters

被引:23
作者
Iosue, JL [1 ]
Benoit, DM [1 ]
Clary, DC [1 ]
机构
[1] Univ London Univ Coll, Dept Chem, London WC1H 0AJ, England
基金
英国工程与自然科学研究理事会;
关键词
D O I
10.1016/S0009-2614(99)00035-4
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
We report the ground-state properties of several partially deuterated CH3OH[H2O](n) (n = 1,2) clusters calculated with the rigid-body diffusion Monte Carlo method. The dimer has two distinct isomers with methanol-donor or water-donor structures. The dimer complex was found to prefer a water-donor structure and the calculated rotational constants for this isomer compare favorably with results obtained in recent experiments. The ground-state structure of the CH3OH[H2O](2) trimer was found to be cyclic. (C) 1999 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:275 / 280
页数:6
相关论文
共 32 条
[1]   RANDOM-WALK SIMULATION OF SCHRODINGER EQUATION - H+3 [J].
ANDERSON, JB .
JOURNAL OF CHEMICAL PHYSICS, 1975, 63 (04) :1499-1503
[2]   Examination of some new configurations of methanol-water hetero dimer system by molecular orbital and density functional calculations [J].
Arulmozhiraja, S ;
Kolandaivel, P .
JOURNAL OF MOLECULAR STRUCTURE-THEOCHEM, 1996, 366 (1-2) :123-129
[3]   THE WATER-METHANOL COMPLEXES .1. A MATRIX-ISOLATION STUDY AND AN AB-INITIO CALCULATION ON THE 1-1 SPECIES [J].
BAKKAS, N ;
BOUTEILLER, Y ;
LOUTELLIER, A ;
PERCHARD, JP ;
RACINE, S .
JOURNAL OF CHEMICAL PHYSICS, 1993, 99 (05) :3335-3342
[4]   THE WATER-METHANOL COMPLEXES - MATRIX INDUCED STRUCTURAL CONVERSION OF THE 1-1 SPECIES [J].
BAKKAS, N ;
BOUTEILLER, Y ;
LOUTELLIER, A ;
PERCHARD, JP ;
RACINE, S .
CHEMICAL PHYSICS LETTERS, 1995, 232 (1-2) :90-98
[5]   Speed improvement of diffusion quantum Monte Carlo calculations on weakly bound clusters [J].
Benoit, DM ;
Chavagnac, AX ;
Clary, DC .
CHEMICAL PHYSICS LETTERS, 1998, 283 (5-6) :269-276
[6]   INTERACTION OF METHANE AND METHANOL WITH WATER [J].
BOLIS, G ;
CLEMENTI, E ;
WERTZ, DH ;
SCHERAGA, HA ;
TOSI, C .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1983, 105 (03) :355-360
[7]   Simulations of H2O solid, liquid, and clusters, with an emphasis on ferroelectric ordering transition in hexagonal ice [J].
Buch, V ;
Sandler, P ;
Sadlej, J .
JOURNAL OF PHYSICAL CHEMISTRY B, 1998, 102 (44) :8641-8653
[8]   TREATMENT OF RIGID BODIES BY DIFFUSION MONTE-CARLO - APPLICATION TO THE PARA-H2...H2O AND ORTHO-H2...H2O CLUSTERS [J].
BUCH, V .
JOURNAL OF CHEMICAL PHYSICS, 1992, 97 (01) :726-729
[9]   Structure and vibrational spectra of methanol clusters from a new potential model [J].
Buck, U ;
Siebers, JG ;
Wheatley, RJ .
JOURNAL OF CHEMICAL PHYSICS, 1998, 108 (01) :20-32
[10]  
DELBENE JE, 1971, J CHEM PHYS, V55, P4633, DOI 10.1063/1.1676800