Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5415756 | Journal of Molecular Spectroscopy | 2008 | 14 Pages |
Abstract
Infrared spectrum of the cobalt carbonyl radical CoCO produced by the 193 nm excimer laser photolysis of cobalt tricarbonyl nitrosyl Co(CO)3NO was observed by time-resolved diode laser spectroscopy. More than 600 lines were identified as belonging to the ν1 (C-O stretch) fundamental band, consisting of the Ω=5/2 and 3/2 subbands, and the associated hot bands 112, 101 211, 101311, and 101222. The 2Îi electronic ground state of CoCO was experimentally confirmed. The ν1 band origins are 1974.172582(93) cmâ1 and 1973.53178(14) cmâ1 for the Ω=5/2 and 3/2 subbands, respectively. The rotational constant in the ground state was determined as B0=4427.146(50) MHz. The centrifugal distortion constant D0=1.1243(68) kHz was obtained for the Ω=5/2 substate of the ground state. The equilibrium rotational constant Be=4435.44(14) MHz was derived, together with the vibration-rotation interaction constants.
Related Topics
Physical Sciences and Engineering
Chemistry
Physical and Theoretical Chemistry
Authors
Seiki Ikeda, Toshihide Hikida, Takehiko Tanaka, Keiichi Tanaka,