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E. N. Moskvitina, Yu. Ya. Kuzyakov
Intracavity
laser spectroscopy of molecule HfCl New electronic transition 2Π3/2–X2Δ3/2
Abstract
Absorbtion electronic spectrum of hafnium monocloride (HfCl)has been investigated in the visible region in order
to find the bands of HfCl that was predicted by
theoretical calculations. These molecules of HfCl have been obtained in plasma which was created by pulses of electric
discharge through a mixture of vapors of HfCl4 and He. Diffraction
spectrograph was used to registrar the spectra. Two new bands in the HfCl
spectrum were detected. These bands were assigned to transition 2Π3/2–X 2Δ 3/2. A rotational analysis of these
bands was carried out and rotational constants were determined for the new 2Π3/2 electronic state.
These constants are B0=0.104977(34)cm–1, and ae =0.00052(1)cm–1.
Key words: HfCl, intracavity laser
spectroscopy, rotational analysis, molecular constants.
Copyright (C) Chemistry Dept., Moscow State University, 2002
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