Newly modified TTF and DSDTF donors for developing molecular-based organic metals
作者:Jun-ichi Yamada、Hiroyuki Nishikawa、Koichi Kikuchi
DOI:10.1039/a807698g
日期:——
The development of organic metals based on newly modified TTF (tetrathiafulvalene) and DSDTF (diselenadithiafulvalene) donors via the Lewis acid-promoted reactions of organotin compounds with electrophiles is described. The Me
3
Al-promoted reaction is versatile for construction of 1,3-dichalcogenol-2-ylidene moieties, and the BF
3
-promoted reaction is utilized to prepare the 1,3-dithiole-2-chalcogenone derivatives condensed with a bis-fused six-membered heterocycle. The use of these reactions enables us to synthesize DHTTF (dihydrotetrathiafulvalene) donors, DHTTF-fused donors, DSDTF donors incorporating the vinylenedithio end group, and TTF donors with an extended periphery by addition of aliphatic heterocycles. The crystal structures of radical-cation salts derived from these π-electron donors, including some new κ-type salts with a 2:1 (donor:anion) stoichiometry, are also disclosed.
本文介绍了通过路易斯酸促进有机锡化合物与亲电体的反应,开发基于新修饰的 TTF(四噻吩富戊二烯)和 DSDTF(二硒二噻吩富戊二烯)供体的有机金属。Me 3 Al 促成的反应可用于构建 1,3-二羰基烯-2-亚基分子,而 BF 3 促成的反应则可用于制备与双融合六元杂环缩合的 1,3-二硫代-2-羰基烯酮衍生物。利用这些反应,我们可以合成 DHTTF(二氢四硫富戊烯)供体、DHTTF-融合供体、含有乙烯二硫末端基团的 DSDTF 供体,以及通过添加脂肪族杂环而具有扩展外围的 TTF 供体。此外,还公布了由这些π电子供体衍生的自由基阳离子盐的晶体结构,包括一些具有 2:1(供体:阴离子)化学计量的新型κ型盐。