Synthesis, structure and properties of BEDT-TTF derivatives

In summary, the authors have shown that the organometallic reagent (1) can be used as a synthetic reagent in the preparation of the partially selenium substituted BADSe-TTF donors. This generalized procedure was exemplified by the synthesis of BMDSe-TTF which was obtained in an overall yield of 36%. Since the structure of (1) was found to be isostructural with that of the all sulfur nickel complex, in whose TTF C-T salt three dimensional superconductivity was thought to occur, it may be possible to utilize (1) for the synthesis of similar materials. They have also presented data on the pressure dependence of conductivity in (BMDT-TTF)2Au(CN)2 for which they find that modest pressures cause the retention of the metallic state to low temperatures. Through the appropriate choice of donor/anion combinations, it may be possible to stabilize the metallic state in this material and induce superconductivity in this class of materials