Electrical and magnetic characterization of a molecular material {[Ru(bpy)3][Fe(dca)3]2}n

Electrical and magnetic properties of {[Ru(bpy)3][Fe(dca)3]2}n (bpy=2,2′-bipyridine, dca=dicyanamide) have been studied. The compound is a non-extrinsic type of semiconductor and paramagnetic in nature. Mössbauer spectroscopy has established the presence of high spin Fe(II) as one major species in this compound, and no high spin–low spin transition of Fe(II) was detected down to 80 K under dark. The photo-response of electrical conductivity with time shows interesting behavior with repeated exposure.