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The D1Π-X1Σ and D1Π-A1Δ Transitions in YCI Investigated by Laser-Induced Fluorescence

✍ Scribed by J. Xin; G. Edvinsson; L. Klynning; P. Royen

Publisher: Elsevier Science
Year: 1993
Tongue: English
Weight: 266 KB
Volume: 158
Category: Article
ISSN: 0022-2852
DOI: 10.1006/jmsp.1993.1050

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✦ Synopsis

The singlet transitions (D^{1} \Pi-X^{1} \Sigma) and (D^{1} \Pi-A^{1} \Delta) of the (\mathrm{YCl}) molecule have been investigated using LIF methods. The (D^{\prime} \Pi) state has been excited from the ground state (X^{1} \Sigma) by absorption of the blue (4579 \AA) Ar ion laser line. Fluorescence spectra from transitions back to the ground state and to the first excited metastable singlet state (A^{\prime} \Delta) have been recorded. Accurate molecular constants for the (A^{\text {l }} \Delta) state have been derived for the first time. co 1993 Academic Press. Inc.

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