Four isomeric benzodithiophene analogs of 11,11,12,12-tetracyano-9,10-anthraquinodimethane have been prepared via a TiCl4 mediated condensation of the corresponding quinone and malononitrile. The reduction potential of these isomers was interpreted in terms of the resonance energies for the neutral and radical anion species. These new acceptor compounds, except for 4,8-bis(dicyanomethylene)-4,8-dihydrobenzo[1
11,11,12,12-tetracyano-9,10-anthraquinodimethane 的四种异构
苯并二
噻吩类似物已通过 TiCl4 介导的相应醌和
丙二腈的缩合反应制备。这些异构体的还原电位是根据中性和自由基阴离子物质的共振能来解释的。除了4,8-双(二
氰基亚
甲基)-4,8-二
氢苯并[1,2-c:4,5-c']二
噻吩外,这些新的受体化合物与
四硫富瓦烯形成了结晶电荷转移络合物,其中络合物4,8-双(二
氰基亚
甲基)-4,8-二
氢苯并[1,2-b:4,5-b']二噻吩尤其表现出4.78 S cm-1的高室温电导率。