New dispersed fluorescence spectra of HCBr and DCBr

Wei Zhong Chang, Hui Ju Hsu, Bor Chen Chang

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26 Scopus citations


Dispersed fluorescence spectra following the excitation of several HCBr and DCBr Ã-X̃ vibronic bands were successfully obtained in a supersonic free jet expansion with an intensified charge-coupled device (ICCD) detector. These dispersed fluorescence spectra show signal-to-noise ratios of up to 100 and reveal the complete and detailed vibrational structure of the ground singlet state including the previously unreported C-H/D stretch vibrational mode. The emission bands to the background triplet state levels in DCBr were also observed for the first time and this confirms the singlet-triplet energy gap to be 2061 cm-1 (5.89 kcal/mol) in DCBr.

Original languageEnglish
Pages (from-to)25-30
Number of pages6
JournalChemical Physics Letters
Issue number1-3
StatePublished - 15 Sep 2005


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