Author/Authors :
Grochola، نويسنده , , A. and Jastrzebski، نويسنده , , W. and Kowalczyk، نويسنده , , P. and Crozet، نويسنده , , P. and Ross، نويسنده , , A.J.، نويسنده ,
Abstract :
Polarisation labelling spectroscopy has been used to record the excitation spectrum of KLi in the region 18 500 to 20 800 cm−1. Transitions are observed to all bound levels of the D1Π state, and to some high vibrational levels of the C1Σ+ state, both of which dissociate to K(4S) + Li(2P) atoms. Spectroscopic constants are given for both electronic states. A pointwise potential curve is constructed for the D1Π state, which has a small barrier (26.5 cm−1) to dissociation, located at 7.79 Å.