On the dissociation of aromatic radical anions in solution

被引:46
作者
Laage, D
Burghardt, I
Sommerfeld, T
Hynes, JT
机构
[1] Ecole Normale Super, CNRS UMR 8460, PASTEUR, Dept Chim, F-75231 Paris 05, France
[2] Ecole Normale Super, CNRS UMR 8642, Dept Chim, F-75231 Paris 05, France
[3] Heidelberg Univ, Inst Phys Chem, D-69120 Heidelberg, Germany
[4] Univ Colorado, Dept Chem & Biochem, Boulder, CO 80309 USA
关键词
D O I
10.1002/cphc.200390009
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 new theoretical formulation is given for the reaction rate and path for the important reaction class of aromatic radical anion dissociation in solution [Ar-X](-.)-->Ar-. + X-, and is illustrated for the case of the cyanochlorobenzene radical anion [CN-Phi-Cl](-.) in dimethylformamide. Among the theory's novel features is the inclusion of the conical intersection aspect of this ground electronic state problem, which is key in allowing the reaction to occur and which has a significant impact on the reaction barrier height. Reasonable agreement with the experimental rate is found.
引用
收藏
页码:61 / 66
页数:6
相关论文
共 59 条
[1]   Dissociative electron attachment to gas-phase 5-bromouracil [J].
Abdoul-Carime, H ;
Huels, MA ;
Brüning, F ;
Illenberger, E ;
Sanche, L .
JOURNAL OF CHEMICAL PHYSICS, 2000, 113 (07) :2517-2521
[2]   NUCLEOPHILE AND ARYL RADICAL REACTIVITY IN SRN1 AROMATIC NUCLEOPHILIC-SUBSTITUTION REACTIONS - ABSOLUTE AND RELATIVE ELECTROCHEMICAL DETERMINATION [J].
AMATORE, C ;
OTURAN, MA ;
PINSON, J ;
SAVEANT, JM ;
THIEBAULT, A .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1985, 107 (12) :3451-3459
[3]  
ANDRIEUX CP, 1984, NOUV J CHIM, V8, P107
[4]   The dissociative nature of the radical anion of benzyl chloride. A theoretical MO ab initio approach [J].
Benassi, R ;
Bertarini, C ;
Taddei, F .
CHEMICAL PHYSICS LETTERS, 1996, 257 (5-6) :633-638
[5]   NONEQUILIBRIUM FREE-ENERGY FUNCTIONS, RECOMBINATION DYNAMICS, AND VIBRATIONAL-RELAXATION OF I2- IN ACETONITRILE - MOLECULAR-DYNAMICS OF CHARGE FLOW IN THE ELECTRONICALLY ADIABATIC LIMIT [J].
BENJAMIN, I ;
BARBARA, PF ;
GERTNER, BJ ;
HYNES, JT .
JOURNAL OF PHYSICAL CHEMISTRY, 1995, 99 (19) :7557-7567
[6]   Potential energy surface and dissociative cleavage of chlorobenzene radical anion [J].
Beregovaya, IV ;
Shchegoleva, LN .
CHEMICAL PHYSICS LETTERS, 2001, 348 (5-6) :501-506
[7]   VB RESONANCE THEORY IN SOLUTION .2. I-2(-)REVERSIBLE-ARROW-I+I- IN ACETONITRILE [J].
BIANCO, R ;
HYNES, JT .
JOURNAL OF CHEMICAL PHYSICS, 1995, 102 (20) :7885-7901
[8]   Potential energy surface crossings and the mechanistic spectrum for intramolecular electron transfer in organic radical cations [J].
Blancafort, L ;
Jolibois, F ;
Olivucci, M ;
Robb, MA .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2001, 123 (04) :722-732
[9]   Formation of grignard reagents from aryl halides:: Effective radical probes hint at a nonparticipation of dianions in the mechanism [J].
Bodineau, N ;
Mattalia, JM ;
Thimokhin, V ;
Handoo, K ;
Négrel, JC ;
Chanon, M .
ORGANIC LETTERS, 2000, 2 (15) :2303-2306
[10]   DYNAMIC THEORY OF PROTON TUNNELING TRANSFER RATES IN SOLUTION - GENERAL FORMULATION [J].
BORGIS, D ;
HYNES, JT .
CHEMICAL PHYSICS, 1993, 170 (03) :315-346