magnetochemistry Review Antiferromagnetic Insulating Ground State of Molecular π-d System λ-(BETS)2FeCl4 (BETS = Bis(ethylenedithio)tetraselenafulvalene): A Theoretical and Experimental Review Yugo Oshima *, Heng-Bo Cui and Reizo Kato Condensed Molecular Materials Laboratory, RIKEN, Hirosawa 2-1,...