The M(dddt)2 family of conducting complexes: [Ni(dddt)2]3(AuBr2)2, the first quasi-two-dimensional metal stable down to at least 1.3 K

Abstract
The first stable molecular metal, [Ni(dddt)2]3(AuBr2)2, among the M(dddt)2 family of conducting charge-transfer salts has been prepared and its crystal structure has been solved by X-ray analysis. The origin of the metallic conductivity of [Ni(dddt)2]3(AuBr2)2 as well as the stability of this salt with respect to metal-to-insulator transitions is explained on the basis of tight-binding band structure calculations.

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