New BETS salt with the square planar [Ni(CN)4]2− anion

The new radical cation salt based on bis(ethylenedithio)tetraselenafulvalene (BETS) with the square planar [Ni(CN)4]2− anion was synthesized by electrocrystallization: (BETS)4·Ni(CN)4. X-ray analysis, electron transport, magnetotransport and electronic band structure calculations are presented and discussed.