Donor-(π-bridge)-azinium as D-π-A+ one-dimensional and D-π-A+-π-D multidimensional V-shaped chromophores
作者:Marco Antonio Ramírez、Ana M. Cuadro、Julio Alvarez-Builla、Obis Castaño、Jose L. Andrés、Francisco Mendicuti、Koen Clays、Inge Asselberghs、Juan J. Vaquero
DOI:10.1039/c2ob06427h
日期:——
Heteroaromatic cations reacted with N-heteroarylacetylenes under Sonogashira conditions to allow easy access to potential single donor D-π-A+ and V-shapedD-π-A+-π-Dchromophores, where the acceptor moiety A is the π-deficient pyridinium cation and the donor moiety is represented by different π-excessive N-heterocycles. The β hyperpolarizabilities were measured using hyper-Rayleigh scattering experiments