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Solvent effects on the ultraviolet absorption spectrum of mercury atom

โœ Scribed by M.V. Buturlimova; G.Ya. Zelikina; M.B. Kiseleva

Publisher
Elsevier Science
Year
2008
Tongue
English
Weight
186 KB
Volume
880
Category
Article
ISSN
0022-2860

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โœฆ Synopsis

Absorption spectrum of mercury dissolved in hexane and heptane in the region 280-180 nm was found to consist of three bands. These bands were assigned to the 1 S 0 ? 3 P 1 transition (A band, k = 254 nm), to the 1 S 0 ? 3 P 2 transition (B band, k = 226 nm) and the 1 S 0 ? 1 P 1 transition (C band, k = 190 nm) of a mercury atom placed into a liquid cell. The B and C absorption bands of mercury in liquid solutions were observed for the first time. It was found that the A band and the C band have, respectively, distinct doublet and triplet structure, while the doublet structure of the B band is only slightly seen. The oscillator strengths of all three bands of mercury in solutions were estimated. The structure of the C, A and B bands of mercury in solutions most probably results from the removal of the degeneracy of the excited states 1 P 1 , 3 P 1 and 3 P 2 of a mercury atom, placed into a cell of low symmetry.

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