A three-dimensional quantum mechanical study of the F+H-2/D-2 reactions. On a new potential energy surface

被引:58
作者
Rosenman, E [1 ]
HochmanKowal, S [1 ]
Persky, A [1 ]
Baer, M [1 ]
机构
[1] SOREQ NUCL RES CTR,DEPT APPL MATH & PHYS,IL-81800 YAVNE,ISRAEL
关键词
D O I
10.1016/0009-2614(96)00588-X
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 quantum mechanical cross sections and rate constants for the title reactions, as calculated on the Stark-Werner potential energy surface. The calculations, carried out in the reagents arrangement channel by employing negative imaginary potentials, were done within the coupled-state approximation. The calculated cross sections were compared with quasiclassical trajectory calculations. The calculated rate constants for the two title reactions as well as their isotopic ratio were found to be in good agreement with experiment. Part of the study is devoted to showing the existence of strong tunneling processes caused by a thin potential barrier.
引用
收藏
页码:421 / 428
页数:8
相关论文
共 42 条
[1]   CLASSICAL DYNAMICS FOR THE F+H2-]HF+H REACTION ON A NEW AB-INITIO POTENTIAL-ENERGY SURFACE - A DIRECT COMPARISON WITH EXPERIMENT [J].
AOIZ, FJ ;
BANARES, L ;
HERRERO, VJ ;
RABANOS, VS ;
STARK, K ;
WERNER, HJ .
CHEMICAL PHYSICS LETTERS, 1994, 223 (03) :215-226
[2]   QUASI-CLASSICAL TRAJECTORY STUDY OF THE F+D-2-]DF+D REACTION ON A NEW AB-INITIO POTENTIAL-ENERGY SURFACE - COMPARISON WITH MOLECULAR-BEAM EXPERIMENTAL RESULTS [J].
AOIZ, FJ ;
BANARES, L ;
HERRERO, VJ ;
RABANOS, VS ;
STARK, K ;
WERNER, HJ .
JOURNAL OF PHYSICAL CHEMISTRY, 1994, 98 (42) :10665-10670
[3]   QUANTUM-MECHANICAL TREATMENT OF THE F+H2-]HF+H REACTION [J].
BAER, M ;
JELLINEK, J ;
KOURI, DJ .
JOURNAL OF CHEMICAL PHYSICS, 1983, 78 (06) :2962-2977
[4]   A NEW ACCURATE (TIME-INDEPENDENT) METHOD FOR TREATING REACTIVE COLLISIONS - CONVERSION OF A SCATTERING PROBLEM INTO A BOUND PROBLEM [J].
BAER, M ;
NEUHAUSER, D ;
OREG, Y .
JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, 1990, 86 (10) :1721-1727
[5]   Integral and differential state-to-state cross-sections for the reactions F+D-2 (v(i)=O,j(i))->DF(v(f),j(f))+D: A comparison between three-dimensional quantum mechanical and experimental results [J].
Baer, M ;
Faubel, M ;
MartinezHaya, B ;
Rusin, LY ;
Tappe, U ;
Toennies, JP ;
Stark, K ;
Werner, HJ .
JOURNAL OF CHEMICAL PHYSICS, 1996, 104 (07) :2743-2745
[6]  
BAER M, 1981, PHYS REV LETT, V47, P1588
[7]  
BAER M, 1990, CHEM PHYS LETT, V169, P539
[8]  
BAER M, 1994, J CHEM PHYS, V101, P327
[9]   AN IMPROVED POTENTIAL-ENERGY SURFACE FOR F+H2-]HF+H AND H+H'F-]HF+H' [J].
BROWN, FB ;
STECKLER, R ;
SCHWENKE, DW ;
TRUHLAR, DG ;
GARRETT, BC .
JOURNAL OF CHEMICAL PHYSICS, 1985, 82 (01) :188-201
[10]   HIGH-RESOLUTION CROSSED MOLECULAR-BEAM INVESTIGATION OF THE ABSOLUTE CROSS-SECTIONS AND PRODUCT ROTATIONAL STATES FOR THE REACTION F+D-2, (V(I)=0 J(I)=0,1)-]DF(V(F)J(F))+D [J].
FAUBEL, M ;
RUSIN, L ;
SCHLEMMER, S ;
SONDERMANN, F ;
TAPPE, U ;
TOENNIES, JP .
JOURNAL OF CHEMICAL PHYSICS, 1994, 101 (03) :2106-2125