The gas-phase infrared spectroscopy of V4O10+ produced by laser vaporization has been studied in the spectral region from 7 to 16 mum. 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 (O-2 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 V=O 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.

Mass-selected infrared photodissociation spectroscopy of V4O10+ / Asmis, Kr; Brummer, M; Kaposta, C; Santambrogio, Gabriele; von Helden, G; Meijer, G; Rademann, K; Woste, L.. - In: PHYSICAL CHEMISTRY CHEMICAL PHYSICS. - ISSN 1463-9076. - 4:7(2002), pp. 1101-1104. [10.1039/b111056j]

Mass-selected infrared photodissociation spectroscopy of V4O10+

SANTAMBROGIO, GABRIELE;
2002

Abstract

The gas-phase infrared spectroscopy of V4O10+ produced by laser vaporization has been studied in the spectral region from 7 to 16 mum. 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 (O-2 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 V=O 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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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11696/29286
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