CALCULATIONS OF STRETCHING VIBRATIONAL OVERTONES AND COMBINATIONS OF ARSINE BY NONLINEAR MODEL

A three-parameter nonlinear model in nonlinear quantum theory, i.e., t he quantized discrete self-trapping equation, has been used to calcula te the vibrational energy spectrum, including the overtones and combin ations with many excited quanta, of AsH stretches of arsine, AsH3. The model calculations agree well with experiment and other calculations. It is shown that the dominant feature of the energy spectrum of AsH3 molecule is a pattern of local mode pairs, and that when n greater tha n or equal to 4, all the vibrational energies are almost localized on a single AsH bond.