Synthesis and characterization of novel donor-acceptor oligothiophenes as efficient and thermally stable second-order nonlinear optical chromophores

Utilize este identificador para referenciar este registo: https://hdl.handle.net/1822/17305

Título:	Synthesis and characterization of novel donor-acceptor oligothiophenes as efficient and thermally stable second-order nonlinear optical chromophores
Autor(es):	Batista, Rosa Maria Ferreira Costa, Susana P. G. Belsley, M. Raposo, M. Manuela M.
Palavras-chave:	Thiobarbituric acid (Oligo)thiophene UV-visible spectroscopy Solvatochromism Chromophores Nonlinear optics (NLO) Thermal stability Static first hyperpolarizabilities beta HRS technique Donor-pi-acceptor systems Static first hyperpolarizabilities
Data:	2010
Editora:	Trans Tech Publications
Revista:	Materials Science Forum
Resumo(s):	New push-pull thiobarbituric (oligo)thiophene derivatives 1 were synthesized, in good to excellent yields (60-98%), through Knoevenagel condensation of the corresponding formyl-(oligo)thiophenes 2 with 1,3-diethylthiobarbituric acid in dichloromethane, under basic conditions. Evaluation of the thermal and solvatochromic properties of these compounds was carried out and their NLO response was estimated. The values obtained suggest that these (oligo)thiophenes have good potential to be used as novel NLO materials.
Tipo:	Artigo em ata de conferência
URI:	https://hdl.handle.net/1822/17305
DOI:	10.4028/www.scientific.net/MSF.636-637.380
ISSN:	0255-5476
Arbitragem científica:	yes
Acesso:	Acesso restrito UMinho
Aparece nas coleções:	CDQuim - Comunicações e Proceedings