When S2 is trapped in a frozen inert gas matrix, both the equilibrium internuclear distance r(3) and the vibrational parameter omega(3) are perturbed by the matrix environment. If it is assumed that the Morse potential adequately represents the lowest part of the potential energy curve, the perturbation of r(e) can be related to the perturbation of omega(e) as follows: Delta r(e) = - constant Delta omega(e). The validity of this result is demonstrated. The report includes a reprint of the journal article which describes this investigation, a tabular summary of the RKR potential energy curves for S2 isolated in frozen Ne, Ar, Kr, Xe, and N2 matrices, and a tabular summary of calculated Franck-Condon factors and emission intensities for the fluorescent bands of S2 in the gas phase and of S2 isolated in Ne, Ar, Kr, Xe, and N2 matrices. (Modified author abstract).

Project 7903. Reprinted from Journal of Chemical Physics, vol. 58, no. 8, April 1973, with the addition of appendices. Also available as AD762899.