4.6 Article

Infrared spectra of zinc and cadmium dioxide anions in solid neon

Journal

CHEMICAL PHYSICS LETTERS
Volume 489, Issue 4-6, Pages 181-186

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ELSEVIER
DOI: 10.1016/j.cplett.2010.02.077

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Funding

  1. National Basic Research Program of China [2007CB815203]
  2. National Natural Science Foundation of China [20773030]

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Zinc and cadmium dioxide anions are produced via electron capture of the corresponding neutral molecules during condensation of laser-ablated zinc and cadmium atoms with O-2 in excess neon at 4 K. Photosensitive infrared absorptions at 624.1 and 483.6 cm(-1) are assigned to the antisymmetric stretching vibrations (nu 3) of the linear ZnO2- and CdO2- anions on the basis of isotopic shifts and splittings as well as density functional calculations. The predicted quite low nu(3)/nu(1) ratios for both anions with (2)Pi(g) ground state are similar with the valence isoelectronic CO2+ and BO2 molecules. (C) 2010 Elsevier B. V. All rights reserved.

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