Table of Contents
Laser Chemistry
Volume 7 (1987), Issue 5-6, Pages 333-341

Laser-Induced Fluorescence Study on Reactions of C+(2P) and C(1D,1S) With Alcohols Leading to CH(X2Π) Radicals at Thermal Energy

Research Institute of Industrial Science and Department of Molecolar Science and Technology, Kyushu University, Kasuga-shi, Fukuoka 816, Japan

Received 29 December 1986; Accepted 2 March 1987

Copyright © 1987 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Thermal energy reactions of C+(2P) and C(1D,1S) with CH3OH, C2H5OH, n-C3H7OH and i-C3H7OH to give CH(X2Π) radicals have been investigated by observing laser-induced fluorescence (LIF) spectra of CH(A—X) in a flowing afterglow. In the hydride ion abstraction by C+(2P), only CH3OH exhibited the CH(A—X) LIF spectrum with a vibrational distribution of 1.0 : 0.62 for v″ = 0 and 1, respectively. On the other hand, the CH(A—X) LIF spectra exclusively from v″ = 0 were observed in the reactions of C(1D,1S) with all alcohols studied. By isotopic substitution for CH3OH it was shown that the CH(X) radicals arise from the selective attack on the methyl site in the reactions of C+(2P) and C(1D,1S) with methanol.