Hydrolysis of As(III): A femtosecond process

被引:14
作者
Bhattacharjee, Anirban [1 ]
Hofer, Thomas S. [1 ]
Pribil, Andreas B. [1 ]
Randolf, Bernhard R. [1 ]
Rode, Bernd M. [1 ]
机构
[1] Univ Innsbruck, Inst Gen Inorgan & Theoret Chem, Theoret Chem Div, A-6020 Innsbruck, Austria
关键词
MOLECULAR-DYNAMICS SIMULATIONS; ELECTRONIC POPULATION ANALYSIS; AQUEOUS-SOLUTION; WAVE FUNCTIONS; BASIS-SETS; ION; FORCE; WATER;
D O I
10.1016/j.cplett.2009.03.011
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 Quantum Mechanical Charge Field Molecular Dynamics (QMCF-MD) study of As(III) in aqueous medium was carried out, in order to gain insight into its solvation behavior, both in structural and dynamic aspects. Immediately after the formation of the hydrated As(3+) ion, a two step hydrolysis was observed resulting in the As(OH)(2)(+) species which seems to be the stable species of As(III) in water. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码:176 / 178
页数:3
相关论文
共 25 条
[1]   Structure and dynamics of hydrated Ag (I): Ab initio quantum mechanical-molecular mechanical molecular dynamics simulation [J].
Armunanto, R ;
Schwenk, CF ;
Rode, BM .
JOURNAL OF PHYSICAL CHEMISTRY A, 2003, 107 (17) :3132-3138
[2]   Hybrid models for combined quantum mechanical and molecular mechanical approaches [J].
Bakowies, D ;
Thiel, W .
JOURNAL OF PHYSICAL CHEMISTRY, 1996, 100 (25) :10580-10594
[3]   MOLECULAR-DYNAMICS WITH COUPLING TO AN EXTERNAL BATH [J].
BERENDSEN, HJC ;
POSTMA, JPM ;
VANGUNSTEREN, WF ;
DINOLA, A ;
HAAK, JR .
JOURNAL OF CHEMICAL PHYSICS, 1984, 81 (08) :3684-3690
[4]   AN IMPROVED POTENTIAL FOR NON-RIGID WATER-MOLECULES IN THE LIQUID-PHASE [J].
BOPP, P ;
JANCSO, G ;
HEINZINGER, K .
CHEMICAL PHYSICS LETTERS, 1983, 98 (02) :129-133
[5]   Arsenic geochemistry and health [J].
Duker, AA ;
Carranza, EJM ;
Hale, M .
ENVIRONMENT INTERNATIONAL, 2005, 31 (05) :631-641
[7]   A COMBINED QUANTUM-MECHANICAL AND MOLECULAR MECHANICAL POTENTIAL FOR MOLECULAR-DYNAMICS SIMULATIONS [J].
FIELD, MJ ;
BASH, PA ;
KARPLUS, M .
JOURNAL OF COMPUTATIONAL CHEMISTRY, 1990, 11 (06) :700-733
[8]   POTENTIAL OF MEAN FORCE FOR THE ISOMERIZATION OF DMF IN AQUEOUS-SOLUTION - A MONTE-CARLO QM/MM SIMULATION STUDY [J].
GAO, JL .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1993, 115 (07) :2930-2935
[9]  
HOFER S, J PHYS CHEM B UNPUB, DOI DOI 10.1021/JP802663H
[10]   The hydration of the mercury(I)-dimer - A quantum mechanical charge field molecular dynamics study [J].
Hofer, Thomas S. ;
Randolf, Bernhard R. ;
Rode, Bernd M. .
CHEMICAL PHYSICS, 2008, 349 (1-3) :210-218