Synthetic research on a model compound of organic high-tenperature superconductors

由二聚TTF单元组成的双层四硫富瓦烯并吩可能被视为具有高温超导性的k型TTF配合物的合适模型化合物。此外，它们作为潜在的电子供体是令人感兴趣的，其在形成电荷转移络合物方面具有一些优势，例如，控制化学计量和组装的可能性。在这种分层TTF平板的设计中，可以考虑两个TTF单元的许多重叠类型。在这方面，我们已经研究了几个新的四硫富瓦烯并吩具有不同的堆积模式，其中包括四个双桥类型（顺-顺），（顺-反），（反-反，平行），（反-反，扭曲）和两个四桥类型（平行）和（交叉）。它们作为良好的电子给体形成导电分子配合物，其中一些配合物与有机金属配合

Double-layred tetrathiafulvalenophanes consisting dimeric TTF units might be regarded as suitable model compounds for k-type of TTF complexes showing high-temperature superconductivities. In addition, they are interesting as potential electron donors, which have some advantages in the formation of charge-transfer complexes, e, g., possibilities of controlled stoichiometry and assembly. Many overlapped types of the two TTF units may be considered in the designs of such layred TTF phanes. In this regard, we have studied novel several tetrathiafulvalenophanes with different stacking modes, which include four double-bridged types (cis-cis) , (cis-trans) , (trans-trans, parallel) , and (trans-trans, twist) and two quadruple-bridged types (parallel) and (crisscross). They behaved as good electron donors forming conductive molecular complexes, some of which corresponded to organic metals