Spectroscopy of yttrium dimers in argon matrices
Low-Temperature Physics and Chemistry in Cryomatrice
DOI (Low Temperature Physics):
https://doi.org/10.1063/1.1312403Ключові слова:
PACS: 78.30.Hv, 71.55.HtАнотація
The absorption and resonance Raman spectra of yttrium dimers (Y2) in argon matrices have been measured for the first time. The absorption spectrum (scattering depletion spectrum SDS) shows a weak, broad transition centered near 485 nm. Resonance Raman spectra obtained by exciting into this absorption band with several visible laser lines (465.5√496.5 nm) give a single, sharp progression with up to ten Stokes transitions. These data give we=184.4(4) cm-1, with we xe=0.30(3) cm-1, leading to a spectroscopic dissociation energy of De=3.5(4) eV. Comparison of our results with several ab initio calculations adds confirmation to the assignment of the ground state of Y2 to be 1∑g+ state.
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2000-09-10
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Li Fang, Xiaoyu Chen, Xiaole Shen, Yifei Liu, D. M. Lindsay, and John R. Lombardi, Spectroscopy of yttrium dimers in argon matrices: Low-Temperature Physics and Chemistry in Cryomatrice, Low Temp. Phys. 26, (2000) [Fiz. Nizk. Temp. 26, 1011-1015, (2000)] DOI: https://doi.org/10.1063/1.1312403.
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