ISSN:
1434-6079
Keywords:
33.10
;
33.50
;
33.70
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract Synchrotron radiation is used to selectively excite the chlorine molecule in the VUV spectral range. Stationary fluorescence spectra of the 11Σ u + state are observed following primary excitation of 11Σ u + and 21Σ u + . The bound-free part of the spectra is analysed with the aid of quantum mechanical computer simulations. A potential energy curve is constructed which is an approximation of the adiabatic double well potential energy curve of the 11Σ u + state. The inner well is characterized byT e =(73428±50) cm−1,r e =(1.85 ± 0.05) Å; for the outer well holdT e =(64631±50) cm−1,r e =(2.57±0.05) Å, ω e =(261±5) cm−1, ω e x e =(0.668±0.01) cm−1 (35Cl2;v′〈30). The potential energy curve is successfully checked with fluorescence excitation spectra. Within the error limits, the results of a former synchrotron radiation study are verified. It is ruled out, that the Cl2 “γ-state” recently observed with laser spectroscopic methods, can be attributed to the outer well of 11Σ u + .
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01439808
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