2,2 -Bi-l,3-dithiolylidene

The earliest considerations of how electrical conductivity might be associated with molecular materials emphasized the polarizability of the constituent molecules as the most important factor (65JCP(42)4307). The efforts of synthetic chemists to devise an organic conductor based solely on these ideas were unsuccessful. Discovery of the electrical conductivity in the material prepared from A-2,2 -bi-l,3-dithiolylidene (tetrathiafulvalene, TTF ... 

TTFs, also named 2,2 -bi-l,3-dithiole, 2,2 -bi-(l,3-dithiolylidene), are one of the most studied systems in the field of molecular materials because of their ability to participate in electrically conducting and superconducting cation radical salts or CT complexes. The utility of TTF derivatives as building blocks in macromolecular and super-molecular structures, molecular-based ferromagnetic compounds, donor moieties in intramolecular D-A systems in... 

Throughout the review TTF stands for tetrathiafulvalene (1) itself, namely 2,2 -bi(l, 3-dithiolylidene). For all tetrathiafulvalene derivatives, the adopted numbering scheme is shown alongside the formula. 

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