Electronic Spectroscopy and Excited State Dynamics of theKrAlH(X(1)Sigma(+),A(1)Pi) Van Der Waals Complex

摘要

The laser fluorescence excitation spectrum of the KrAlH van der Waals complex, inthe vicinity of the A(1)Pi-X(1)Sigma(+) (0,0) band of diatomic AlH, is presented. This species was prepared in a pulsed free jet by 193 nm multiphoton dissociation of trimethylaluminum seeded in inert gas mixtures. The KrAlH bands were found to be both rotationally resolved and diffuse. Rotational analyses were carried out for most of the sharp bands. In contrast to the analogous ArAlH complex, the only observed bands from the ground KrAlR(X) bend-stretch level involved perpendicular