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Gas phase electronic spectrum of T-shaped AIC₂ radical

Apetrei, C. and Knight, A. E. W. and Chasovskikh, E. and Jochnowitz, E. B. and Ding, H. and Maier, J. P.. (2009) Gas phase electronic spectrum of T-shaped AIC₂ radical. Journal of Chemical Physics, 131 (6). 064305.

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Official URL: http://edoc.unibas.ch/dok/A5251465

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Abstract

Gas phase electronic transitions for the C̃  B22←X̃  A21 and D̃  B21←X̃  A21 band systems of T-shaped AlC2 (C2v) radical have been measured in the 345–475 nm range. Vibrational analyses of both band systems are reported. Simulation of several rotationally resolved bands confirms previously obtained rotational parameters for the C̃  B22 state. The radical is produced by ablating an aluminum rod in the presence of acetylene gas. The resulting supersonic molecular beam is probed using both mass-selective resonant two-color two-photon ionization and laser induced fluorescence. Ab initio calculations and vertical electronic excitation energies help the assignment. Vibrational frequencies for the X̃  A21, C̃  B22, and D̃  B21 states have been determined. Rotational analysis of a number of bands yields spectroscopic constants for one vibronic state in the C̃  B22 manifold and the origin band of the D̃  B21←X̃  A21 system.
Faculties and Departments:05 Faculty of Science > Departement Chemie > Chemie > Physikalische Chemie (Maier)
UniBasel Contributors:Maier, John Paul
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:AIP Publishing
ISSN:0021-9606
e-ISSN:1089-7690
Note:Publication type according to Uni Basel Research Database: Journal article
Language:English
Identification Number:
Last Modified:24 Apr 2017 09:37
Deposited On:22 Mar 2012 14:11

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