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The rovibrationally resolved spectrum of ν2 OCHBr

✍ Scribed by Zhongcheng Wang; John W. Bevan

Publisher: Elsevier Science
Year: 1990
Tongue: English
Weight: 608 KB
Volume: 167
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(90)85069-o

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✦ Synopsis

A band analysis of the rovibrationally resolved spectrum of a hydrogen-bonded complex involving the proton donor HBr is reported. The u2 (CO stretching vibration) in OC-HBr has ken observed using a computer-controlled cw supersonic planar jet diode laser spectrometer. The following fitted molecular parameters have been determined (in cm-') for the v2 band of '60'2C-'H'9Br: ~,=2152.605023(60), 8,=0.03820684( 15),D~'Iz, =9.201(8)~10-s,Bh=0.03837695(1), D~00,=9.016(l)x lo-*: and for the v2 band of 160%--'H81Br: v0=2152.606257(59), &=0.03795714(77), Dj*)=S.S72(32) x10-', Bo= 0.03812694(81), Df") =8.743(34)x lOma. Investigation of the observed line profiles has allowed a lower limit of 0.55 ns to be placed on the excited state predissociative lifetime.

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