ISSN:
1089-7690
Source:
AIP Digital Archive
Topics:
Physics
,
Chemistry and Pharmacology
Notes:
The 18 373 cm−1 band in the fluorescence excitation spectrum of jet-cooled CrO2F2 has been recorded with 0.007 cm−1 linewidth. The stronger lines have been assigned to a type c transition, consistent with a B1←A1 vibronic transition analogous to that in CrO2Cl2. Ground-state rotational constants, A″=0.148, B″=0.130, and C″=0.120 cm−1, agree well with electron diffraction predictions. The B1 excited state is significantly perturbed. Evidence includes (i) a decreasing fluorescence yield with increasing J′, such that signals were not observed for J′〉3, (ii) the appearance of "extra'' lines in the spectrum, leading to perturbing levels strongly mixed with levels of the B1 state, and (iii) anomalous effective rotational constants for the B1 state.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.451099
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