An Isomeric Series of Thiophene-Fused Tetracyanoquinodimethanes. I. Preparation and Physico-Chemical Properties
作者:Keiji Kobayashi、Chhabi L. Gajurel、Kisaburo Umemoto、Yasuhiro Mazaki
DOI:10.1246/bcsj.65.2168
日期:1992.8
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。