Linear and nonlinear optical properties of merocyanines derivatives of malonodinytriles

Autor:	Yu. L. Slominsky, O. D. Kachkovsky, A.V. Uklein, Ya. A. Prostota, V. Ya. Gayvoronsky, Alexander P. Shkurinov
Rok vydání:	2014
Předmět:	chemistry.chemical_compound Materials science Absorption spectroscopy chemistry Atomic electron transition Absorption band Excited state Transition dipole moment General Physics and Astronomy Molecule Merocyanine Molecular physics Acceptor
Zdroj:	Physics of Wave Phenomena. 22:240-251
ISSN:	1934-807X 1541-308X
DOI:	10.3103/s1541308x14040062
Popis:	A detailed complex study of the series of neutral merocyanine derivatives of malonodinytriles with variable donor terminal groups and with the same acceptor group is carried out. The absorption spectra and nonlinear optical (NLO) characteristics are measured. It is shown that the long-wavelength absorption band is highly sensitive to the donor strength of the variable residue terminal group. The distinct dependence of the state dipole moments and characteristics of the electron transitions on the chemical constitution of merocyanine molecules was confirmed by quantum-chemical calculations. An analysis of the obtained results shows that the change in the electron characteristics of the ground and excited states due to variations in the chemical constitution of merocyanine molecules is accompanied by sensible variations in the NLO response. With allowance for the calculation, the effect of molecular topology on the experimental linear and NLO characteristics could be correctly interpreted.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::77cb802e5a0cdfe90d12d51520c59e90 https://doi.org/10.3103/s1541308x14040062 Zobrazit plný text záznamu Full text from SpringerLink