Physics – Chemical Physics
Scientific paper
2010-03-26
Chin. J. Chem. Phys. (Letters) 23, 249 (2010)
Physics
Chemical Physics
10 pages, 3 figures; submitted
Scientific paper
We have reinvestigated the B-X and C-X band systems of CuCl by recording the laser-induced fluorescence excitation spectra in 20400-21800 cm^{-1}. The rotational analyses in Hund's case (a) revealed unambiguously a singlet-to-singlet transition nature. The measured lifetimes of a few microseconds seem too long for singlets and too short for triplets, which we think is actually in favor of a picture of singlet ({1}^Pi and {1}^Sigma^{+})-triplet ({3}^Pi_{0,1,2}) mixed states in the B and C band systems of CuCl. The two excited states we observed in our spectra may be the singlets that have been strongly "contaminated" by their triplet neighbors.
Chen Yang
Wang Li
Zhang Qun
Zhen Junfeng
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