... Intracavity laser spectroscopy of molecule HfCl New electronic transition 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. ... A rotational analysis of these bands was carried out and rotational constants were determined for the new 2 ? ... Moscow University Chemistry Bulletin . 2014, Vol. ... 6, P. 360 . ... Moscow State University, 2002 . ...