The RgI2 (ion-pair states) van der Waals complexes*
Department of Physics, Saint Petersburg State University, SPbSU, 7/9 Universitetskaya nab., 199034 St. Petersburg, Russia
Received: 2 March 2017
Received in final form: 21 June 2017
Published online: 5 September 2017
This paper is an overview of our recent experimental investigations of the RgI2 van der Waals complexes, Rg = He, Ar, Kr, performed by means of laser induced fluorescence spectroscopy, optical-optical double resonance and supersonic molecular beam techniques. Spectroscopic parameters of these complexes in the E0g+ ion-pair state, such as binding energies and several spectroscopic constants, have been determined. Most likely, the potential energy surfaces of the all RgI2(E) complexes under study present T-shaped minima. Vibrational and electronic predissociations of the RgI2(E) complexes were analyzed. Relative contributions of the different electronic predissociation channels and vibrational distributions of the decay products were determined. Possible mechanisms of the complexes decay are suggested and discussed.
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag 2017