Author(s): dos Santos, Giovanny Carvalho [UNESP] ; Servilha, Roberta Oliveira [UNESP] ; de Oliveira, Eliézer Fernando [UNESP] ; Lavarda, Francisco Carlos [UNESP] ; Ximenes, Valdecir Farias [UNESP] ; da Silva-Filho, Luiz Carlos [UNESP]
Date: 2018
Persistent ID: http://hdl.handle.net/11449/174562
Origin: Oasisbr
Subject(s): DFT; Niobium pentachloride; Photoluminescence; Quinoline derivatives; Solvatochromic effect
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
This paper describes the investigations on the solvatochromic effect and the photophysical properties of quinoline derivatives, compounds with potential applicability in optoelectronic devices. Using an experimental and theoretical approach, the effect of the solvent and the insertion of the phenyl, nitro, amino and dimethylamino group in the quinoline backbone were investigated. The use of Density Functional Theory (DFT) calculations provided the bases for the understanding of the energetic transitions observed in the absorption and fluorescence experiments. In general, it was observed a change in the wavelength of maximum absorption and fluorescence quantum yield of the studied compounds caused by the substituents in the quinoline core. This effect was correlated with the solvent dielectric constants.
Department of Chemistry São Paulo State University (UNESP) School of Sciences, 17033-360, Bauru
Department of Physics São Paulo State University (UNESP) School of Sciences, 17033-360, Bauru
Department of Chemistry São Paulo State University (UNESP) School of Sciences, 17033-360, Bauru
Department of Physics São Paulo State University (UNESP) School of Sciences, 17033-360, Bauru
FAPESP: 2012/21983-0
FAPESP: 2012/24199-8
FAPESP: 2013/08697-0
FAPESP: 2014/20410-1
FAPESP: 2015/00615-0
FAPESP: 2016/01599-1
CNPq: 302753/2015-0
