Synthesis, structure, electrical and magnetic properties of (BEDT-TTF)2[3,3′-Fe(1,2-C2B9H11)2]

New radical cation salt of bis(ethylenedithio)tetrathiafulvalenium and iron bis(dicarbollide) [BEDT-TTF](2)[3,3'-Fe (1,2-C2B9H11)(2)] (1) has been synthesized. The crystal structure of 1 has been determined by single-crystal X-ray diffraction method found to be isostructural to the known Co and Cr analogues. The electric conductivity measurement in the range of 110 divided by 296 K shows that 1 is semiconductor with the room temperature conductivity sigma(293) = 1.5 x 10(-2) Omega(-1) cm(-1), that is higher than in the Cr analogue and lower than in the Co analogue. The measurement of magnetic susceptibility in the range of 2 divided by 300 K revealed that 1 is paramagnetic with the absence of significant interactions between the organic radical cations and the paramagnetic anions. (C) 2011 Elsevier B.V. All rights reserved.