[BEDT-TTF][Fe(C 2 O 4 )Cl 2 ]: an organic-inorganic hybrid semiconductive antiferromagnet.

A radical cation salt composed of an organic donor, BEDT-TTF, and a one-dimensional inorganic anion, [Fe(CO)Cl], was obtained by electrocrystallization, and was identified as a semiconductor with values of σ = 3.0 × 10 S cm. Spin-canted antiferromagnetic long-range ordering was observed at 5.5 K from ZFCM/FCM/RM measurement and confirmed using AC measurement.