Alignment effects in the photodissociation of Hg–Kr van der Waals molecules

Abstract

In this paper we present calculations of the yield and polarization of the fluorescence from the Hg λ253.7 nm transition following photodissociation of the Hg–Kr van der Waals molecule. We have used a coupled channel wave packet method to predict the alignment produced in photodissociation [J. Chem. Phys. 95, 8124 (1991)]. We show that the alignment effects depend sensitively on the repulsive part of potential near photodissociation threshold. We have made predictions for three different sets of interatomic potentials for Hg–Kr proposed by different authors [M. Findeisen and T. Grycuk, J. Phys. B 22, 1583 (1988); M. Findeisen, T. Grycuk, and J. Staby, The B and X State Potentials for Hg–Ar, –Kr, –Xe (to be published); M. Okunishi, H. Nakazawa, K. Yamanouchi, and S. Tsuchiya, J. Chem. Phys. 93, 7526 (1990); D. M. Segal and K. Burnett, J. Chem. Soc. Faraday Trans. 2 85, 925 (1989)].