The structure of supercritical ammonia as studied by molecular dynamics simulations

被引:17
作者
Kiselev, M
Kerdcharoen, T
Hannongbua, S [1 ]
Heinzinger, K
机构
[1] Chulalongkorn Univ, Fac Sci, Dept Chem, Bangkok 10300, Thailand
[2] Russian Acad Sci, Inst Solut Chem, Ivanovo 153045, Russia
[3] Mahidol Univ, Fac Sci, Dept Phys, Bangkok 10300, Thailand
[4] Max Planck Inst Chem, Otto Hahn Inst, D-55020 Mainz, Germany
基金
俄罗斯基础研究基金会;
关键词
D O I
10.1016/S0009-2614(00)00836-8
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
The results of molecular dynamics simulations of supercritical ammonia are reported for the first time. Good agreement is found with results of neutron diffraction studies, thus far the only experimental evidence on the structure of supercritical ammonia. The partial radial distribution functions and the running integration numbers indicate that hydrogen bonding exists under supercritical conditions and seems to increase with decreasing density. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:425 / 428
页数:4
相关论文
共 18 条
[1]   STRUCTURE AND INTERMOLECULAR INTERACTIONS IN FLUID AMMONIA - AN INVESTIGATION BY NEUTRON-DIFFRACTION AT HIGH-PRESSURE, STATISTICAL-MECHANICAL CALCULATIONS AND COMPUTER-SIMULATIONS [J].
BAUSENWEIN, T ;
BERTAGNOLLI, H ;
DAVID, A ;
GOLLER, K ;
ZWEIER, H ;
TODHEIDE, K ;
CHIEUX, P .
JOURNAL OF CHEMICAL PHYSICS, 1994, 101 (01) :672-682
[2]   Hydrogen bonding in supercritical methanol. A molecular dynamics investigation [J].
Chalaris, M ;
Samios, J .
JOURNAL OF PHYSICAL CHEMISTRY B, 1999, 103 (07) :1161-1166
[4]   Simulation studies of liquid ammonia by classical ab initio, classical, and path-integral molecular dynamics [J].
Diraison, M ;
Martyna, GJ ;
Tuckerman, ME .
JOURNAL OF CHEMICAL PHYSICS, 1999, 111 (03) :1096-1103
[5]   Raman spectroscopic studies on hydrogen bonding in methanol and methanol/water mixtures under high temperature and pressure [J].
Ebukuro, T ;
Takami, A ;
Oshima, Y ;
Koda, S .
JOURNAL OF SUPERCRITICAL FLUIDS, 1999, 15 (01) :73-78
[6]   EXTENSIVE THEORETICAL-STUDIES OF THE HYDROGEN-BONDED COMPLEXES (H2O)2, (H2O)2H+, (HF)2, (HF)2H+, F2H-, AND (NH3)2 [J].
FRISCH, MJ ;
DELBENE, JE ;
BINKLEY, JS ;
SCHAEFER, HF .
JOURNAL OF CHEMICAL PHYSICS, 1986, 84 (04) :2279-2289
[7]   SUPERCRITICAL HYDRATION OF ORGANIC-COMPOUNDS - THE POTENTIAL OF MEAN FORCE FOR BENZENE DIMER IN SUPERCRITICAL WATER [J].
GAO, JL .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1993, 115 (15) :6893-6895
[8]   MOLECULAR-DYNAMICS STUDY OF A LITHIUM ION IN AMMONIA [J].
HANNONGBUA, SV ;
ISHIDA, T ;
SPOHR, E ;
HEINZINGER, K .
ZEITSCHRIFT FUR NATURFORSCHUNG SECTION A-A JOURNAL OF PHYSICAL SCIENCES, 1988, 43 (06) :572-582
[9]   Size and topology of molecular clusters in supercritical water: a molecular dynamics simulation [J].
Kalinichev, AG ;
Churakov, SV .
CHEMICAL PHYSICS LETTERS, 1999, 302 (5-6) :411-417
[10]  
KISELEV M, UNPUB