Designs and Synthesis of Novel Electron Donors of Non-TTF Types and Formation of Their Conducting Molecular Complexes

The developments of novel electron donors of non-TTF types are described, especially focussing on peri-condensed heteroarenes bearing a structural resemblance to pyrene or perylene and on peri-dichalcogen bridged arenes like tetrathiotetracene. These compounds have been designed chiefly to provide strong donating abilities and strong intermolecular heteroatomic contacts, which are prerequisites for components of organic metals. As a result, some of them have stronger donating abilities than does tetrathiafulvalene (TTF) , thus providing a large number of highly conducting molecular complexes. Electron donor, Electron acceptor, Molecular complex, Tetrathiafulvalene, Chalcogen atom,.