THE STRUCTURE OF THE CYCLOHEXYL RADICAL FROM STATE-SELECTIVE PHOTOFRAGMENT TRANSLATIONAL SPECTROSCOPY OF THE AXIAL AND EQUATORIAL CONFORMERS OF IODOCYCLOHEXANE

被引：23

作者：

FREITAS, JE

HWANG, HJ

TICKNOR, AB

ELSAYED, MA

机构：

[1] Department of Chemistry and Biochemistry, University of California, Los Angeles

来源：

CHEMICAL PHYSICS LETTERS | 1991年 / 183卷 / 3-4期

关键词：

D O I：

10.1016/0009-2614(91)80044-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：

Iodocyclohexane (C6H11I) is photodissociated and studied with state-selective photofragment translational spectroscopy. Angular, velocity, and translational energy distributions are obtained for the ground state I(2P3/2) and the excited state I*(2P1/2) photodissociated iodine atoms. The kinetic energy released in the photodissociation of the axial conformer is 6.0 +/- 0.8 kcal/mol greater than that produced from the equatorial conformer. This suggests that the cyclohexyl radical produced from the axial iodocyclohexane has less internal energy than that formed from the equatorial conformer. The conclusion is thus reached that the ground state of the cyclohexyl radical has the hydrogen atom at its radical center in the equatorial position.

引用

页码：165 / 170

页数：6

共 22 条

[1] COMPLEMENTARY IR NMR APPROACH FOR THE DETERMINATION OF IR EXTINCTION COEFFICIENTS AND THERMODYNAMIC PARAMETERS FOR CONFORMERS IN RAPID EQUILIBRIUM - THE HALOCYCLOHEXANES [J].