SYNTHESIS,STRUCTURE AND ELECTRICAL PROPERTIES OF THE TWO-DIMENSIONAL ORGANIC CONDUCTOR,(BEDT-TTF)2Brl 2

Single crystals of ~-(BEDT-TTF)2Brl 2 and B-(BEDT-TTF)2Brl 2 were prepared using standard electrochemical techniques in nitrogen saturated benzonitri le solution containing (n-C4HIo)NBrl 2 as supporting electrolyte. The crystals have nearly identical structure features of ~-(BEDT-TTF)213 and B-(BEDT-TTF)213, except that the BrI2 anions are disordered in ~-(BEDT-TTF)2Brl 2 and B-(BEDT-TTF)2Brl 2. Their electr ical behavior is di f ferent from the corresponding ~-,B-(BEDT-TTF)213species