Spectrum of excitation energies and oscillator forces of electronic transitions are considered in the paper aiming at the calculation method development of transition energy and forces of oscillators. The method does not reguire the separate consideration of electron states. The calculation self-co-ordinate method for two states of quantum system simultaneously in frameworks of the Brilluen's generalized theorem has been realized for the first time. The method has been realized for small moleculas. Solutions of model problems have been suggestedAvailable from VNTIC / VNTIC - Scientific & Technical Information Centre of RussiaSIGLERURussian Federatio
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