Dispersed fluorescence spectrum of the HC35ClÃ-X̃ vibronic transition

Chun Wei Chen, Tsung Chuan Tsai, Bor Chen Chang

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Abstract

The dispersed fluorescence spectrum following the excitation of HC35ClÃ-X̃ vibronic transition between 570 and 610 nm was successfully obtained in a direct current (DC) discharge supersonic free jet expansion. The analysis of the dispersed fluorescence spectrum results in detailed information of the HC35ClX̃1A state vibrational structure. The bending and C-Cl stretching frequencies as well as anharmonicity constants were determined for the first time. In addition, since no perturbation was observed in the vibrational structure of the X̃1A state up to 2788cm-1, a lower limit of triplet-singlet energy gap was established to be roughly 8.0 kcal/mol.

Original languageEnglish
Pages (from-to)73-78
Number of pages6
JournalChemical Physics Letters
Volume347
Issue number1-3
DOIs
StatePublished - 19 Oct 2001

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