Thienylpyrrole azo dyes: synthesis, solvatochromic and electrochemical properties

• Author(s): Raposo, M. Manuela M. ; Sousa, Ana M. R. C. ; Fonseca, A. Maurício C. ; Kirsch, G.
• Date: 2005
• Persistent ID: http://hdl.handle.net/1822/7838
• Origin: RepositóriUM - Universidade do Minho
• Subject(s): Thiophene; Pyrrole; Donor-acceptor thienylpyrrole; Azo dyes; Heterocycles; Synthesis; Solvatochromism; Electrochemistry; Nonlinear optics (NLO); UV-visible spectroscopy
• Document Type: Article
• Language: English

Description

The synthesis and the evaluation of solvatochromic and electrochemical properties of new donor-acceptor-substituted thienylpyrrole azo dyes 3 are described. These derivatives exhibit dramatic changes in both their electronic and redox properties in comparison with thienylpyrroles 1. In agreement with the solvatochromic and electrochemical studies of push-pull derivatives 3 the new compounds prepared, may find application in the manufacture of new materials with notable non-linear optical properties.