Ring puckering of cyclooctatetraene and cyclohexane is induced by pseudo-Jahn-Teller coupling

被引:27
作者
Blancafort, Lluis
Bearpark, Michael J.
Robb, Michael A. [1 ]
机构
[1] Univ Girona, Inst Quim Computac, E-17071 Girona, Spain
[2] Univ Girona, Dept Quim, E-17071 Girona, Spain
[3] Univ London Imperial Coll Sci Technol & Med, Dept Chem, London SW7 2AZ, England
关键词
D O I
10.1080/00268970600665427
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
Ring puckering of cyclooctatetraene and cyclohexane (an aromatic and a saturated hydrocarbon) is caused by pseudo-Jahn-Teller coupling between the ground state and excited states of (pi, sigma*) and (sigma, sigma*) type, respectively, as shown by symmetry-restricted CASSCF calculations. The effect can be also understood as due to interaction between the bonding and antibonding orbitals involved in the excitation.
引用
收藏
页码:2007 / 2010
页数:4
相关论文
共 12 条
[1]   MOLECULAR-PROPERTIES FROM PERTURBATION-THEORY - A UNIFIED TREATMENT OF ENERGY DERIVATIVES [J].
ALMLOF, J ;
TAYLOR, PR .
INTERNATIONAL JOURNAL OF QUANTUM CHEMISTRY, 1985, 27 (06) :743-768
[2]   The pseudo-Jahn-Teller effect: a CASSCF diagnostic [J].
Bearpark, MJ ;
Blancafort, L ;
Robb, MA .
MOLECULAR PHYSICS, 2002, 100 (11) :1735-1739
[3]   ON THE ORIGIN OF DYNAMIC INSTABILITY OF MOLECULAR-SYSTEMS [J].
BERSUKER, IB ;
GORINCHOI, NN ;
POLINGER, VZ .
THEORETICA CHIMICA ACTA, 1984, 66 (3-4) :161-172
[4]   Pseudo Jahn-Teller origin of instability of molecular high-symmetry configurations: Novel numerical method and results [J].
Bersuker, IB ;
Balabanov, NB ;
Pekker, D ;
Boggs, JE .
JOURNAL OF CHEMICAL PHYSICS, 2002, 117 (23) :10478-10486
[5]   Modern aspects of the Jahn-Teller effect theory and applications to molecular problems [J].
Bersuker, IB .
CHEMICAL REVIEWS, 2001, 101 (04) :1067-1114
[6]  
Frisch M., 2016, Gaussian, V16
[7]   Energy component analysis of the pseudo-Jahn-Teller effect in the ground and electronically excited states of the cyclic conjugated hydrocarbons: Cyclobutadiene, benzene, and cyclooctatetraene [J].
Koseki, S ;
Toyota, A .
JOURNAL OF PHYSICAL CHEMISTRY A, 1997, 101 (31) :5712-5718
[8]   ON THE EVALUATION OF NONADIABATIC COUPLING MATRIX-ELEMENTS USING SA-MCSCF/CL WAVE-FUNCTIONS AND ANALYTIC GRADIENT METHODS .1. [J].
LENGSFIELD, BH ;
SAXE, P ;
YARKONY, DR .
JOURNAL OF CHEMICAL PHYSICS, 1984, 81 (10) :4549-4553
[9]   VIBRONIC COUPLING-CONSTANTS IN THE ETHYLENE MOLECULE - THE EFFECTS OF ELECTRONIC CORRELATION AND RELAXATION [J].
OGURTSOV, IY ;
GORINCHOY, NN .
THEOCHEM-JOURNAL OF MOLECULAR STRUCTURE, 1995, 331 (03) :281-287
[10]   MULTIREFERENCE CL GRADIENTS AND MCSCF 2ND DERIVATIVES [J].
PAGE, M ;
SAXE, P ;
ADAMS, GF ;
LENGSFIELD, BH .
JOURNAL OF CHEMICAL PHYSICS, 1984, 81 (01) :434-439