Laserhyphen;induced fluorescence of the C2H3O radical

摘要

Laserhyphen;induced single vibronic level fluorescence of the C2H3O radical is reported. The 0ndash;0 band of the fluorescence lies at 28thinsp;798 cmminus;1(347.2 nm). The Cndash;O and Cndash;C stretching, and the Cndash;Cndash;O bending vibrational energies are 1560, 1150, and 530 cmminus;1, respectively, in the ground electronic state, and 872, 1110 and 432 cmminus;1, respectively, in the excited state. The lifetime of the excited state is 0.8 mgr;sec. The double bond nature of C2H3O is more dominant in the Cndash;O bond than in the Cndash;C bond in the ground state. The C2H3O radical is found in the C2H4+O reaction, as well as in the CH3CHO+F reaction.