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Electric dipole moments in the excited states determined by means of spectral methods

I. A. RUSU1, Ş. FILOTI1, D. O. DOROHOI1,* , M. TOMA1

Affiliation

  1. Department of Physics, “Al.I.Cuza” University, Bd. Carol I nr.11, 700506-Iasi, Romania

Abstract

The electric dipole moments involved in the electronic transitions responsible for the visible band appearance in the absorption and/or emission spectrum of some cycloimmonium ylids are estimated by two methods: -the dipole moments in the ground electronic state were computed by using PM3 procedure; - the dipole moments in the excited state were estimated from the spectral shifts measured in different solvents, related to the gaseous phase of the spectrally active molecule. The Bakhshiev theory was used to express these shifts versus the solution parameters..

Keywords

Cycloimmonium ylids, Dipole moments in electronic excited states, Visible absorption and fluorescence, NMR spectra.

Submitted at: May 9, 2006
Accepted at: Sept. 13, 2006

Citation

I. A. RUSU, Ş. FILOTI, D. O. DOROHOI, M. TOMA, Electric dipole moments in the excited states determined by means of spectral methods, Journal of Optoelectronics and Advanced Materials Vol. 8, Iss. 5, pp. 1951-1955 (2006)