Akihiro Ohto

A two-dimensional bimetallic assembly, [Ni(pn)2]2[Fe(CN)6]ClO4-2H2O, with a square structure

A bimetallic assembly, [Ni(pn)2]2[Fe(CN)6]ClO4·2H2O, has a two-dimensional square network structure, formed from Fe–CN–Ni(pn)2–NC–Fe linkages, and shows ferromagnetic ordering.

A strong antiferromagnetic interaction between imino nitroxides through a PdII ion

A palladium(II) complex with imino nitroxides, [PdCl2(immepy)2][immepy = 2-(6-methylpyridyl)-4,4,5,5-tetramethyl-4,5-dihydro-1H-imidazolyl-1-oxy], shows a strong antiferromagnetic interaction between the coordinated imino nitroxides, which results from indirect overlap of radical SOMOs through a dxy orbital.

Magnetic Interactions in Cu(I) and Ag(I) Iminonitroxides

Abstract Orthogonal arrangement of iminonitroxides in [Cu1(immepy)2](PF6) (1) and [Ag1(impy)2](PF6) (2) results in propagation on intramolecular ferromagnetic interaction between coordinating iminonitroxides through these diamagnetic ion. In 1, iminonitroxides coordinate to the Cul ion in a tetrahedral fashion, the dihedral angle between coordinating iminonitroxides being 88.7°. Magnetic susceptibility and epr measurements for 1 show the typical ferromagneic behavior with large zero field splitting (2J = 91(1) cm−1 (H = −2JS1.S2);D = 3.62 cm−1). In 2, the four coordination sites of Ag1 ion were completed with two iminonitroxides and the dihedral angle between the iminonitroxides is 79.2°. Temperature dependence of teh epr spectra for frozen ethanol solution of 2 shows that the intramolecular mangetic interaction between radicals is ferromagnetic (0= 4K).