Rotational analysis of the A - X system of tellurium monoxide

Abstract

A fairly complete rotational analysis has been made of a number of bands of the main system A-X of TeO using two separated tellurium isotopes. A new vibrational analysis is proposed and is confirmed by the isotope effect. The structure of the bands indicates that Hund's case c applies to both states, so that the transition is better described as A0+-X0+, A1-X1, rather than A3Σ--X3Σ-. Transitions 1-0+, 0+-1 have not been observed. Derived constants, in cm-1, for 128TeO are as follows: