Solvated Magnets of Fe[N(CN) 2 ] 2 (pyrimidine): Transition Phenomena Tuned by Guests

Abstract

Low-temperature magnets derived from Fe[N(CN) 2 ] 2 (pyrimidine) have guest molecules incorporated in the clearance of the 3-D framework. The ac and dc magnetic susceptibility measurements reveal that the temperature of magnetic phase transition ( T N ) depends on the guest molecules. They are characterized as weak ferromagnets below T N . The compound containing uncoordinated pyrimidine molecules as a guest showed the highest T N of 5.6 K in this family. host-guest compound weak ferromagnet X-ray diffraction magnetic phase transition