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Structure and Dynamics of the S3 State of CS2

Sadeghi, R. R., Gwaltney, S. R., Krause, J. L., Skodje, R. T., & Weber, P. M. (1997). Structure and Dynamics of the S3 State of CS2. Journal of Chemical Physics. 107, 6570-6576.

Abstract

We present a detailed theoretical investigation of the structure and dynamics of the S3 excited state of CS2. The excited state is treated using equation-of-motion coupled-cluster (EOM-CC) theory, and analytic gradients are used in determining the vibrational frequencies. Information from the structure calculations is used to construct a model potential surface. Time-dependent wave packet methods are used to generate the transition state spectrum corresponding to collinear CS2. The spectrum is comprised of transition state resonances which are assigned via a spectral quantization method. The energies and lifetimes of the spectral features are related to recent experimental measurements.