✦ LIBER ✦

Infrared chemiluminescence studies of H + BrCN and H abstraction by CN reactions. Importance of the HNC channel

✍ Scribed by E. Arunan; G. Manke II; D.W. Setser

Publisher: Elsevier Science
Year: 1993
Tongue: English
Weight: 657 KB
Volume: 207
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(93)85015-g

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✦ Synopsis

The H t BrCN reaction and the H abstraction reactions from HI, H#, PHJ, SiH4, CHJOCHa, c-CSH10 and C ( CH,)I by CN were studied by infrared chemiluminescence in a fast Bow reactor. From the dependence of the HCN and HNC emission intensities on temperature, activation energies of 5.2k 0.4 and 7.5 k 0.8 kcal mol-' were assigned for the HCN and HNC channels from the H t BrCN reaction_ The anharmonicity constant, X,,J for HNC, was determined to be 66 cm-I. All reactions yielded HCN with an inverted vibrational distribution in y3 along with v2 excitation and g,) = 0.4-0.5. The abstraction reactions from PHj and HI produced HNC( y, B I ) with HNC/HCN ratios of 30.02 and 3 0.43, respectively.

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