Ion solvation dynamics in supercritical water

被引:18
作者
Biswas, R
Bagchi, B [1 ]
机构
[1] Indian Inst Sci, Solid State & Struct Chem Unit, Bangalore 560012, Karnataka, India
[2] Indian Inst Sci, Jawaharlal Nehru Ctr Adv Sci Res, Bangalore 560012, Karnataka, India
关键词
D O I
10.1016/S0009-2614(98)00460-6
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
A theoretical study of ionic solvation dynamics in supercritical water is presented. The short-time decay of the calculated equilibrium solvation energy time correlation function (S-E(t)) is found to be in good agreement with the recent computer simulation results, The simulated long-time decay is, however, somewhat slower than that which is predicted by the present theory. Two plausible molecular explanations for the slow long-time decay of S-E(t) are offered. (C) 1998. Published by Elsevier Science B.V. All rights reserved.
引用
收藏
页码:223 / 228
页数:6
相关论文
共 32 条
[1]  
BAGCHI B, 1991, ADV CHEM PHYS, V80, P1
[3]   MOLECULAR THEORY OF NONPOLAR SOLVATION DYNAMICS [J].
BAGCHI, B .
JOURNAL OF CHEMICAL PHYSICS, 1994, 100 (09) :6658-6664
[4]   Solvation dynamics in monohydroxy alcohols: Agreement between theory and different experiments [J].
Biswas, R ;
Nandi, N ;
Bagchi, B .
JOURNAL OF PHYSICAL CHEMISTRY B, 1997, 101 (15) :2968-2979
[5]   Solvation dynamics in slow, viscous liquids: Application to amides [J].
Biswas, R ;
Bagchi, B .
JOURNAL OF PHYSICAL CHEMISTRY, 1996, 100 (04) :1238-1245
[6]   MODEL OF SOLVENT STRUCTURE AROUND IONS [J].
CHAN, DYC ;
MITCHELL, DJ ;
NINHAM, BW .
JOURNAL OF CHEMICAL PHYSICS, 1979, 70 (06) :2946-2957
[7]   Supercritical fluids as solvents for chemical and materials processing [J].
Eckert, CA ;
Knutson, BL ;
Debenedetti, PG .
NATURE, 1996, 383 (6598) :313-318
[8]  
Gray C. G., 1984, THEORY MOL FLUIDS, V1
[9]   Are there hydrogen bonds in supercritical water? [J].
Hoffmann, MM ;
Conradi, MS .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1997, 119 (16) :3811-3817
[10]   FEMTOSECOND SOLVATION DYNAMICS OF WATER [J].
JIMENEZ, R ;
FLEMING, GR ;
KUMAR, PV ;
MARONCELLI, M .
NATURE, 1994, 369 (6480) :471-473