Nuclear quadrupole structure of potassium hydroxide in the 32 GHz microwave region

Abstract

A high temperature Stark and radiofrequency-microwave double resonance spectrometer was used to observe the nuclear quadrupole structure of the J=2←1 transition of 39KOH in a number of vibrational states. First order analysis of the hyperfine components gave nuclear quadrupole coupling constants of eQq=−7.23 (29) MHz for the (0000) state, eQq=−7.16 (33) MHz for the (1000) state, and eQq=−7.29 (37) MHz for the (0110) state.