ROTATIONAL ENERGY FOR SPHERICAL TOPS. I. VIBRONIC GROUND STATE, AND II, TRIPLY-DEGENERATE FUNDAMENTAL

This research was supported, in part, by the U. S. Air Force Cambridge Research Laboratories under Contract No. F19628-72-C-0111. The paper is based, in part, on a thesis presented by F. Michelot to the Faculty of Sciences, University of Dijon, France; also see J. Chem. Phys., to be published (1974).Author Institution: Laboratoire de Spectronomie Mol\'eculaire, Facult\'e des Sciences; Department of Physics and Astronomy, Earth Resources and Astrophysics Laboratory, The University of TennesseeThe rotational energy for spherical top molecules in their vibronic ground state is given in a general form to all orders. The sixth-order result is developed explicity. The Hamiltonian for a triply-degenerate fundamental of spherical top molecules is extended to sixth order of approximation. Formulas for the energy levels have been developed