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Studies on synthesis of Quinoline derivatives promoted by Niobium Pentachloride, for use as dyes-sensitizers in photoelectrochemical devices of Grätzel

Grant number: 12/24199-8
Support Opportunities:Scholarships in Brazil - Master
Effective date (Start): March 01, 2013
Effective date (End): February 28, 2015
Field of knowledge:Physical Sciences and Mathematics - Chemistry - Organic Chemistry
Principal Investigator:Luiz Carlos da Silva Filho
Grantee:Giovanny Carvalho dos Santos
Host Institution: Faculdade de Ciências (FC). Universidade Estadual Paulista (UNESP). Campus de Bauru. Bauru , SP, Brazil


The constant search for alternative energy sources has attracted the interest of several research groups around the world. Among the various renewable energy sources, solar energy is gaining prominence due to its huge capacity expansion, which makes it a promising source of renewable and sustainable energy. Based on this idea, the development of solar cells sensitized by organic dyes has received great prominence in the scientific media, because they are devices that have a low cost for making and present a good conversion efficiency of solar energy into electricity. Due to this, the synthetic organic chemistry appears as an excellent tool for the development of dye-sensitized solar cells, enabling the synthesis of new types of dyes and also through structural modifications in organic dyes already used, the potentiation of them to a greater conversion of solar energy into electricity. Therefore, in this project, we propose to perform a study for obtaining different quinolines derivatives and check their potential for application as sensitizing dyes in photoelectrochemical devices of Grätzel. To obtain the quinolines derivatives we will use as starting point the multicomponent reaction between benzaldehyde, aniline and phenylacetylene derivativies in the presence of niobium pentachloride (NbCl5). After the preparation of the quinolines derivatives, these will be submitted to analysis of structural, photochemistry and photophysics characterization, so we can facilitate their application as dye sensitizers for photoelectrochemical devices of Grätzel. Another aim is to check the effect of the substituent groups, be they donors or withdrawing electrons in proportion and yield of products formed, in the reaction times and absorption spectra in the UV-Vis. Also we will check the influence of different proportions of NbCl5 (10, 25 and 50 mol%) in these reactions.

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Scientific publications (4)
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
DOS SANTOS, GIOVANNY CARVALHO; SERVILHA, ROBERTA OLIVEIRA; DE OLIVEIRA, ELIZER FERNANDO; LAVARDA, FRANCISCO CARLOS; XIMENES, VALDECIR FARIAS; DA SILVA-FILHO, LUIZ CARLOS. Theoretical-Experimental Photophysical Investigations of the Solvent Effect on the Properties of Green- and Blue-Light-Emitting Quinoline Derivatives. Journal of Fluorescence, v. 27, n. 5, p. 1709-1720, . (13/08697-0, 15/00615-0, 14/20410-1, 16/01599-1, 12/21983-0, 12/24199-8)
DOS SANTOS, GIOVANNY CARVALHO; OLIVEIRA, ELIEZER FERNANDO; LAVARDA, FRANCISCO CARLOS; DA SILVA-FILHO, LUIZ CARLOS. Designing new quinoline-based organic photosensitizers for dye-sensitized solar cells (DSSC): a theoretical investigation. Journal of Molecular Modeling, v. 25, n. 3, . (13/08697-0, 15/00615-0, 14/20410-1, 16/01599-1, 16/18499-0, 12/21983-0, 12/24199-8)
MORENO, VITOR FERNANDES; DOS SANTOS, GIOVANNY CARVALHO; GASPAR DA COSTA, GYORDANNA MAYARA; AYALA GOMES, MARCELO HENRIQUE; DA SILVA-FILHO, LUIZ CARLOS. NbCl5 Promoted the Efficient Synthesis of Phthalein Derivatives: Optical Characterization and Solvatochromic Effect. Journal of Heterocyclic Chemistry, v. 56, n. 10, . (12/24199-8, 16/01599-1, 15/00615-0)
DOS SANTOS, GIOVANNY CARVALHO; MORENO, VITOR FERNANDES; OSHIRO, PAULA BEATRIZ; DA SILVA-FILHO, LUIZ CARLOS. NbCl5 a multifunctional reagent for the synthesis of new halogenated aminoquinoline compounds through innovative one-pot reaction and the acidochromism effect. Tetrahedron, v. 74, n. 42, p. 6144-6149, . (12/24199-8, 15/00615-0, 18/14506-7, 16/01599-1)
Academic Publications
(References retrieved automatically from State of São Paulo Research Institutions)
SANTOS, Giovanny Carvalho dos. Estudos sobre a síntese de derivados quinolínicos promovida pelo pentacloreto de nióbio para utilização como corantes sensibilizadores em dispositivos fotoeletroquímicos de gratzel. 2015. Master's Dissertation - Universidade Estadual Paulista (Unesp). Faculdade de Ciências. Bauru Bauru.

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