CONTINUUM RESONANCE RAMAN-SCATTERING IN ISOTOPICALLY PURE (ICL)-I-127-CL-35 - DETERMINATION OF EXCITED-STATE POTENTIAL FUNCTIONS

High-resolution polarized and depolarized continuum resonance Raman sp ectra of isotopically pure (ICl)-I-127-Cl-35 for fundamental and overt one transitions Delta upsilon = 1-4 with excitation from the green to the blue spectral region have been used to determine the repulsive par t of the potential function (3) Pi(0+) as well as the pure repulsive p otential function (1) Pi(1). The latter is responsible for the prediss ociation of the (3) Pi(0+) state. The continuum resonance Raman spectr a are highly sensitive to the position and shape of the excited state potential functions and hence allow an accurate determination of these functions. The experimental spectra were simulated applying time depe ndent as well as time independent second-order perturbation theory.