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Publication Citation: Infrared Spectra of CICN+, CINC+, and BrCN+ Trapped in Solid Neon

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Author(s): Marilyn E. Jacox; Warren E. Thompson;
Title: Infrared Spectra of CICN+, CINC+, and BrCN+ Trapped in Solid Neon
Published: June 27, 2007
Abstract: When a mixture of ClCN or BrCN with a large excess of neon is codeposited at 4.3 K with a beam of neon atoms that have been excited in a microwave discharge, the infrared spectrum of the resulting solid includes prominent absorptions of the uncharged isocyanide, ClNC or BrNC, and of the corresponding cation, ClCN+ or BrCN+. The NC-stretching fundamentals of the isocyanides trapped in solid neon lie close to the positions for their previously reported argon-matrix counterparts. The CN-stretching absorptions of ClCN+ and BrCN+ and the CCl-stretching absorption of ClCN+ appear very close to the gas-phase band centers. Absorptions of two overtones and one combination band of ClCN+ are identified. Reversible photoisomerization of ClCN+ to ClNC+ occurs. The two stretching vibrational fundamentals and several infrared and near infrared absorptions associated with electronic transitions of ClNC+ are observed. Minor infrared peaks are attributed to the vibrational fundamental absorptions of the CX and CX+ species (X = Cl, Br).
Citation: Journal of Chemical Physics
Pages: 8 pp.
Keywords: BrCN+;CBr;CBr+;CINC+;infrared spectrum;neon matrix;photoisomerization
Research Areas:
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