Application of ab initio direct dynamics calculations on the ionization and electron attachment processes for the CCl3F molecule

被引:4
作者
Takayanagi, T [1 ]
Kurosaki, Y
Tachikawa, H
机构
[1] Japan Atom Energy Res Inst, Adv Sci Res Ctr, Tokai, Ibaraki 3191106, Japan
[2] Hokkaido Univ, Grad Sch Engn, Div Mol Chem, Sapporo, Hokkaido 0608628, Japan
关键词
ab initio calculations; direct dynamics; ionization; electron attachment; potential energy surface;
D O I
10.1016/S1387-3806(98)14036-8
中图分类号
O64 [物理化学(理论化学)、化学物理学]; O56 [分子物理学、原子物理学];
学科分类号
070203 ; 070304 ; 081704 ; 1406 ;
摘要
Ab initio direct dynamics calculations have been carried out for the ionization and electron attachment processes for the CCl3F molecule in order to obtain dynamical information on these processes. CCI3F+ produced via vertical ionization directly dissociates into CCl2F+ + Cl within a very short time. It has been found that 80% of the available energy is partitioned into the relative translational energy. It has been also found that CCl3F- formed by vertical electron attachment dissociates to CCl2F + Cl-; however, the energy partitioning was very different from the CCl3F+ case. This difference in the dissociation dynamics has been discussed on the basis of the potential energy curves. (C) 1998 Elsevier Science B.V.
引用
收藏
页码:227 / 235
页数:9
相关论文
共 20 条
[1]   PHOTOIONIZATION MASS-SPECTROMETER STUDY OF CFCL-3,CF-2CL-2, AND CF-3CL [J].
AJELLO, JM ;
HUNTRESS, WT ;
RAYERMANN, P .
JOURNAL OF CHEMICAL PHYSICS, 1976, 64 (11) :4746-4754
[2]  
[Anonymous], 1979, GAS PHASE ION CHEM
[3]   MECHANISM, ENERGETICS, KINETICS AND DYNAMICS OF THE REACTION C2H6+.-]C2H4+.+H2 [J].
BRATEN, SM ;
HELGAKER, T ;
UGGERUD, E .
ORGANIC MASS SPECTROMETRY, 1993, 28 (10) :1262-1269
[4]   Energetics and dynamics of intermolecular proton-transfer processes .2. Ab initio direct dynamics calculations of the reaction H3O++NH3->NH4++H2O [J].
Bueker, HH ;
Helgaker, T ;
Ruud, K ;
Uggerud, E .
JOURNAL OF PHYSICAL CHEMISTRY, 1996, 100 (38) :15388-15392
[5]   AB-INITIO CLASSICAL TRAJECTORY STUDY OF H2CO-]H-2+CO DISSOCIATION [J].
CHEN, W ;
HASE, WL ;
SCHLEGEL, HB .
CHEMICAL PHYSICS LETTERS, 1994, 228 (4-5) :436-442
[7]   Low-energy dissociative electron attachment to CFCl3, CF2Br2, and 1,1,1- and 1,1,2-C2Cl3F3: Intermediate lifetimes and decay energetics [J].
Finch, CD ;
Parthasarathy, R ;
Akpati, HC ;
Nordlander, P ;
Dunning, FB .
JOURNAL OF CHEMICAL PHYSICS, 1997, 106 (23) :9594-9601
[8]  
Frisch M.J., 2016, GAUSSIAN 16
[9]  
GUSTEV GL, 1993, J CHEM PHYS, V98, P7072
[10]   INTEGRATION OF THE CLASSICAL EQUATIONS OF MOTION ON ABINITIO MOLECULAR-POTENTIAL ENERGY SURFACES USING GRADIENTS AND HESSIANS - APPLICATION TO TRANSLATIONAL ENERGY-RELEASE UPON FRAGMENTATION [J].
HELGAKER, T ;
UGGERUD, E ;
JENSEN, HJA .
CHEMICAL PHYSICS LETTERS, 1990, 173 (2-3) :145-150