Mass-selected infrared photodissociation spectroscopy of V4O10+

Literature Information

Publication Date 2002-02-27
DOI 10.1039/B111056J
Impact Factor 3.676
Authors

K. R. Asmis, M. Brümmer, C. Kaposta, G. Santambrogio, G. von Helden, K. Rademann, L. Wöste


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Abstract

The gas-phase infrared spectroscopy of V4O10+ produced by laser vaporization has been studied in the spectral region from 7 to 16 µm. Mass-selected V4O10+ cations were stored in a helium filled radio frequency hexadecapole ion trap and excited using tunable infrared radiation from a free electron laser. The photodissociation spectrum was recorded by monitoring the V4O8+ yield (O2 loss) as a function of the excitation wavelength. Two absorption bands at 842 and 1032 cm−1 are observed, which are assigned to resonant excitation of the antisymmetric V–O–V stretching and VO stretching vibrations, respectively. Comparison to recent theoretical and experimental studies indicate that the absorbing species consists of a V4O8+ ionic core weakly bound to an oxygen molecule.

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Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics
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