The Journal of Chemical Physics
The emission spectra of YH and YD molecules have been investigated in the 3600–12 000 cm−1 region using a Fourier transform spectrometer. Molecules were formed in an yttrium hollow cathode lamp operated with a continuous flow of a mixture of Ne and Ar gases, and YH and YD were observed together in the same spectra. A group of bands observed near 1 μm have been identified as 0-0 and 1-1 bands of the A1Δ-X1Σ+ and B1Π-X1Σ+ transitions of YH and the 0-0 bands of the same two transitions for YD. The A1Δ and B1Π states of YH are separated by only about 12 cm−1 and are involved in strong interactions. A perturbation analysis has been performed using the PGOPHER program to fit the two interacting electronic states and spectroscopic parameters for the A1Δ and B1Π states, including the interaction matrix elements, have been obtained for the first time.
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Ram, R. S., Li, G. & Bernath, P. F. (2011) Fourier transform emission spectroscopy of YH and YD: Observation of new A¹Δ and B¹Π electronic states. The Journal of Chemical Physics, 135(19), 1-6, Article 194308.
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Original Publication Citation
Ram, R. S., Li, G. & Bernath, P. F. (2011) Fourier transform emission spectroscopy of YH and YD: Observation of new A¹Δ and B¹Π electronic states. The Journal of Chemical Physics, 135(19), 1-6, Article 194308. https://doi.org/10.1063/1.3659295
Ram, R. S.; Li, G.; and Bernath, P. F., "Fourier Transform Emission Spectroscopy of YH and YD: Observation of New A¹Δ and B¹Π Electronic States" (2011). Chemistry & Biochemistry Faculty Publications. 260.