Published in
Elsevier, Dyes and Pigments, 3(80), p. 329-336
DOI: 10.1016/j.dyepig.2008.08.001
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Synthesis and optical properties of novel, thermally stable phenanthrolines bearing an arylthienyl-imidazo conjugation pathway
,
M. Belsley ,
M. Manuela M. Raposo
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Abstract
Six new hyperpolarizable chromophores based on functionalized arylthiophene donors and an imidazo-phenanthroline acceptor moiety have been designed and synthesized for the first time in good to excellent yields by condensation of 5,6-phenantroline-dione with formyl-arylthiophene derivatives in the presence of ammonium acetate in glacial acetic acid. The thermal stability, solvatochromic and nonlinear optical properties of these compounds were evaluated.