Intensity borrowing in high J levels of the c3II-X1Σ+(0-0) transition of carbon monoxide

被引:4
作者
Baker, J [1 ]
Launay, F
机构
[1] Univ Birmingham, Sch Geog Earth & Environm Sci, Div Environm Hlth & Risk Management, Birmingham B15 2TT, W Midlands, England
[2] Observ Paris, CNRS, LERMA, Sect Meudon,UMR 8112, F-92195 Meudon, France
关键词
D O I
10.1016/j.cplett.2005.09.015
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Several weak new absorption lines in the room temperature spectrum of carbon monoxide have been identified in the 108.9 - 109.0 nm wavelength range. The lines emerge from the long wavelength side of the C(1)Sigma(+)-X(1)Sigma(+) (0-0) band and appear to form a single rotational branch. Their most probable assignments are to high J lines (J > 40) of the P-O branch of the c(3)Pi-X(1)Sigma(+) (0-0) band rather than to lines of the k(3)Pi-X(1)Sigma(+) (2-0) band. The appearance of these lines may be explained by intensity borrowing from the C-X (0-0) transition as a result of mixing between the f(1e), spin-parity component of the c(3)Pi state and the C(1)Sigma(+) state, which are predicted to cross in this energy region. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码:296 / 301
页数:6
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