HIGH-RESOLUTION SPECTROSCOPY OF ANILINE RARE-GAS VAN-DER-WAALS COMPLEXES - RESULTS AND COMPARISON WITH THEORETICAL PREDICTIONS

Laser-induced fluorescence spectra are presented for the first allowed electronic transitions in the near-UV of the aniline-argon and anilin e-neon 1:1 Van der Waals complexes, formed in a molecular beam, The ex perimental linewidth was of the order of 10(-3) cm(-1) due to residual Doppler broadening and lifetime contributions, Single rotational eige nstates were resolved and complete sets of spectral assignments obtain ed using a rigid-rotor Hamiltonian model. From the rotational constant s we extract both structural and dynamical information on the differen t clusters. This information is better understood in the light of a co mparison with the results of quantum calculations.