Spectroscopic and electro-optical exhibitions of large amplitude motions within MH3 and L[MX3] type molecules

A. V. Romanets; L. P. Sukhanov

doi:10.1117/12.267742

3 March 1997 Spectroscopic and electro-optical exhibitions of large amplitude motions within MH₃ and L[MX₃] type molecules

A. V. Romanets, L. P. Sukhanov

Author Affiliations +

Proceedings Volume 3090, 12th Symposium and School on High-Resolution Molecular Spectroscopy; (1997) https://doi.org/10.1117/12.267742
Event: 12th Symposium and School on High Resolution Molecular Spectroscopy, 1996, St. Petersburg, Russian Federation

Abstract

The spectroscopic and electro-optical exhibitions of large amplitude motions within the molecules NH₃ and L[MX₃] (L equals Li,Na; M equals Be,Mg; X equals H, F, O) are investigated. The large amplitude umbrella motions within the ammonia molecule are considered on the basis of one-dimensional dynamic calculations. The NH₃ molecule dipole moment behavior oscillating with the time is obtained. On the basis of ab initio calculated potential energy surfaces (PES's) and dipole moment functions, using the finite element method, the investigations of the spectroscopic and electro-optical exhibitions of intramolecular rotations within L([MX₃] type molecules are carried out. The tunneling splittings of energy levels with number n which are accessible for high resolution vibrational spectroscopy appear for these molecules only at n greater than or equal to 10.

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A. V. Romanets and L. P. Sukhanov "Spectroscopic and electro-optical exhibitions of large amplitude motions within MH₃ and L[MX₃] type molecules", Proc. SPIE 3090, 12th Symposium and School on High-Resolution Molecular Spectroscopy, (3 March 1997); https://doi.org/10.1117/12.267742

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