Synthesis, structure and electrical properties of the two-dimensional organic conductor, (BEDT-TTF)2BrI2

Abstract

Single crystals of α-(BEDT-TTF)2BrI2 and β-(BEDT-TTF)2BrI2 were prepared using standard electrochemical techniques in nitrogen saturated benzonitrile using containing (n-C4H10)NBrI2 as supporting electrolyte. The crystals have nearly identical structure features of α-(BEDT-TTF)2I3 and β-(BEDT-TTF)2I3, except that the BrI−2 anions are disordered in α-(BEDT-TTF)2BrI2 and β-(BEDT-TTF)2BrI2. Their electrical behavior is different from the corresponding α-,β-(BEDT-TTF)2I3 species.