Barium Ions and Helium Nanodroplets: Solvation and DesolvationReportar como inadecuado

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Published in: Journal of Chemical Physics (ISSN: 0021-9606), vol. 137, p. 051102 Melville: American Institute of Physics, 2012

The solvation of Ba+ ions created by the photoionization of barium atoms located on the surface of helium nanodroplets has been investigated. The excitation spectra corresponding to the 6p 2P1/2 <-- 6s 2S1/2 and 6p 2P3/2 <-- 6s 2S1/2 transitions of Ba+ are found to be identical to those recorded in bulk He II [Phys. Lett. A 115, 238 (1986)], indicating that the ions formed at the surface of the helium droplets become fully solvated by the helium. Time-of flight mass spectra suggest that following the excitation of the solvated Ba+ ions, these are being ejected from the helium droplets either as bare Ba+ ions or as small Ba+Hen (n<20) complexes.

Keywords: helium droplets ; barium ion ; solvation Reference EPFL-ARTICLE-180194doi:10.1063/1.4743900View record in Web of Science

Autor: Zhang, Xiaohang; Drabbels, Marcel


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