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Direct observation of vibrational relaxation in highly excited HCN

โœ Scribed by Ruiping Huang; Jisen Wu; Meng-Xiong Gong; Alain Saury; Edwin Carrasquillo M

Publisher
Elsevier Science
Year
1993
Tongue
English
Weight
662 KB
Volume
216
Category
Article
ISSN
0009-2614

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โœฆ Synopsis

Direct measurements of statespecific vibrational self-relaxation rates for highly excited HCN are reported at energy contents which range between 6500-10000 cm-'. By combining single photon overtone vibration excitation with a laser-induced fluorescence probe of the vibrationally energized species the following rate constants were obtained (k/cm3 molecule-' s-i): k~,,2,,~=(69f16)~10-'2; k~3,0,,,=(35f4)~10-'2; k (0,0,3j = ( 14 + 4) x 1 O-i2. The role of intermolecular V-V transfer is dip cussed and the possibility of deactivation by complex formation is examined.

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