Quantum-mechanical description of the intensity distribution in two-photon absorption spectra of dihalogenated benzenes

Autor:	V. V. Kucherova, T. G. Burova
Rok vydání:	2003
Předmět:	Materials science Absorption spectroscopy Polyatomic ion Molecule Context (language use) Singlet state Physics::Chemical Physics Atomic physics Adiabatic process Two-photon absorption Atomic and Molecular Physics and Optics Spectral line Electronic Optical and Magnetic Materials
Zdroj:	Optics and Spectroscopy. 94:5-9
ISSN:	1562-6911 0030-400X
DOI:	10.1134/1.1540192
Popis:	Using molecules of dihalogenated benzenes as an example, the verification of an earlier proposed method of direct quantum-mechanical calculation of the relative intensities of lines in the two-photon absorption spectra of polyatomic molecules is continued. The method of calculation is based on the adiabatic model in the context of the Herzberg-Teller approximation. A comparative analysis of the intensity distribution in the two-photon absorption spectra of dihalogenated and monosubstituted benzenes is carried out, and the vibrational characteristics of these molecules in the lowest singlet excited electronic states are determined. A satisfactory agreement with experimental values, along with the analysis of the possibilities of the method, confirms the expediency of its use for gaining information about the intensity distribution in two-photon absorption spectra of polyatomic molecules.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::923102f26f8a63fd6a8aa7fb1af15f38 https://doi.org/10.1134/1.1540192 Zobrazit plný text záznamu Plný text ve formátu PDF