Synthesis and characterization of novel (oligo)thienyl-imidazo-phenanthrolines as versatile π-conjugated systems for several optical applications

被引：92

作者：

Batista, Rosa M. F. ^{[1
]}

Costa, Susana P. G. ^{[1
]}

Belsley, M. ^{[2
]}

Lodeiro, Carlos ^{[3
]}

Raposo, M. Manuela M. ^{[1
]}

机构：

[1] Univ Minho, Ctr Quim, P-4710057 Braga, Portugal

[2] Univ Minho, Dept Fis, P-4710057 Braga, Portugal

[3] Univ Nova Lisboa, Fac Ciencias & Tecnol, REQUIMTE, Dept Quim, P-2829516 Monte De Caparica, Portugal

来源：

TETRAHEDRON | 2008年 / 64卷 / 39期

关键词：

pi-conjugated systems; thiophene; imidazole; phenanthroline; solvatochromic probes; Hyper-Rayleigh scattering (HRS); thermal stability; nonlinear optics (NLO);

D O I：

10.1016/j.tet.2008.07.043

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

A Series of new heterocyclic chromophores 3-6 were synthesized in moderate to excellent yields by condensation of 5,6-phenantroline-dione with formyl-thiophene derivatives 1-2 in the presence of ammonium acetate in glacial acetic acid. These chromophores possess ail (oligo)thienyl pi-conjugated system attached to imidazo-phenanthroline moiety. These derivatives were evaluated concerning their solvatochronnic properties, thermal stabilities, and molecular optical nonlinearities. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：9230 / 9238

页数：9

共 120 条

[1] A distinctive example of the cooperative interplay of structure and environment in tuning of intramolecular charge transfer in second-order nonlinear optical chromophores [J].