Preparation, crystal structures, conductivities and electronic structures of [et]3[NiCl4]·H2O and [et]3[AuBr4][et = bis(ethylenedithio)tetrathiafulvalene]

Abstract

Single-crystal studies of [et]₃[NiCl₄]·H₂O and [et]₃[AuBr₄][et = bis(ethylenedithio)tetrathiafulvalene] have revealed distinctly different packing motifs associated with the different anions. The nickel compound contains a sheet stack structure whilst the gold compound has a herringbone stack of et molecules. The stacking properties are discussed in the context of conductivity and band-theory calculations. The nickel compound exhibits metallic behaviour at room temperature.