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The C–N Stretching Vibronic Bands of the MgNC Ã2Π–X̃2Σ+ Transition

✍ Scribed by Masaru Fukushima; Takashi Ishiwata

Publisher: Elsevier Science
Year: 2002
Tongue: English
Weight: 141 KB
Volume: 216
Category: Article
ISSN: 0022-2852
DOI: 10.1006/jmsp.2002.8690

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✦ Synopsis

We have generated MgNC in supersonic free jet expansions and measured the laser-induced fluorescence excitation spectra of the C-N stretching vibronic bands of the Ã 2 -X 2 + transition. Rotational analysis yields the molecular constants of the vibronic levels, (1,0,0) and (1,0,1), in the Ã 2 state. We cannot find any anomalies in the constants of these vibronic levels, while they are predicted to lie above the barrier of the isomerization reaction pathway, MgNC ↔ MgCN, on the Ã 2 state. On the basis of the molecular constants obtained, we discuss the fine structures of both the ground X 2 + and excited Ã 2 states.

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