BIS(ETHYLENEDITHIOLO)TETRATHIAFULVALENE/METAL CYANIDE COMPLEX.

摘要

Five novel organic substances comprising a combination of bis(ethylenedithiolo)tetrathiafulvalene (hereinafter referred to as BEDT-TTF) with a metal cyanate anion, i.e. (BEDT-TTF)4[Ni(CN)4]H2O: bis(ethylenedithiolo)-tetrathiafulvalene tetracyanonickelate monohydrate, (BEDT-TTF)4[Pt(CN)4]H2O, (BEDT-TTF)[Pd(CN)2], (BEDT-TTF)4[Pd(CN)4]H2O, and (BEDT-TTF)4[Pd(CN)4]. The BEDT-TTF functions as a donor in the crystals of the above substances to thereby impart characteristics as insulator, metal or superconductor. The development of superconductivity can be expected for a BEDT-TTF compound having a coordinated metal cyanate anion which can readily build such a large skeleton as to increase the effective volume, such as the above substances.