New Oligothienyl-Imidazo-Phenanthroline Chromophores for NLO Applications

被引：2
|
作者：
Batista, Rosa M. F. [1 ]
Costa, Susana P. G. [1 ]
Lodeiro, Carlos [2 ]
Belsley, M. [3 ]
Gomes, E. de Matos [3 ]
Raposo, M. Manuela M. [1 ]
机构：
[1] Univ Minho, Ctr Quim, Campus Gualtar, P-4710057 Braga, Portugal
[2] FCT, UNL, Dept Quim, CQFB, P-2829516 Caparica, Portugal
[3] Univ Minho, Dept Fis, P-4719 Braga, Portugal
来源：
ADVANCED MATERIALS FORUM IV | 2008年 / 587-588卷
关键词：
Phenanthroline; Imidazole; Thiophene; UV-visible spectroscopy; Solvatochromism; Chromophores; Nonlinear optics (NLO); Hyper-Rayleigh scattering technique;
D O I：
10.4028/www.scientific.net/MSF.587-588.263
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A new series of oligothienyl-imidazo-phenanthrolines 3 were synthesised in good to excellent yields by condensation of 5,6-phenantroline-dione 2 with formyl-thiophene derivatives in the presence of ammonium acetate in glacial acetic acid. Furthermore, their solvatochromism and molecular optical nonlinearities were determined and comparatively studied. The experimental results indicate that phenanthrolines 3. due to their moderate solvatochromic properties and good optical nonlinearities, could be used as suitable probes for the determination of solvent polarity and as nonlinear optical materials.
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页码：263 / +
页数：2
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