Binuclear Metal Complexes. VII. Preparation and Properties of Binuclear Copper(II) and Nickel(II) Complexes of Hydrogen-bridged Macrocycles

Two types of binuclear copper(II) and nickel(II) complexes, OK-3(H), 3(H)-M2 and [OK-m, 3(H)-M2]ClO4 (m=2 or 3), have been synthesized, where OK-3(H),3(H) is a macrocycle composed of two 2,6-diformyl-4-methylphenol and four hydroxylamine, and OK-m,3(H) is a macrocycle composed of two 2,6-diformyl-4-methylphenol, one diamine (ethylene diamine (m=2) or 1,3-diaminopropane (m=3)), and two hydroxylamine. It was found that a very strong antiferromagnetic exchange interaction is operating between two copper(II) ions for OK-3(H), 3(H)-Cu2 and [OK-2,3(H)-Cu2]ClO4. The complex [OK-2,3(H)-Ni2]ClO4. DMF was found to be a novel-type binuclear nickel(II) complex, in which one nickel (II) ion is diamagnetic and the other is paramagnetic.

[1]  Y. Nonaka,et al.  Binuclear Metal Complexes. VI. Syntheses and Properties of Binuclear Copper(II) Complexes of 2,6-Bis[N-(β-dialkylaminoethyl)iminomethyl]-4-methylphenol , 1973 .

[2]  H. O̅kawa,et al.  Binuclear Metal Complexes. III. Preparation and Properties of Mononuclear and Binuclear Copper(II) and Nickel(II) Complexes of New Macrocycles and Their Related Ligands , 1972 .

[3]  D. Busch,et al.  low-spin five-coordinate nickel(II) complexes containing a macrocyclic tetradentate amine , 1971 .

[4]  R. Robson,et al.  Complexes of binucleating ligands. III. Novel complexes of a macrocyclic binucleating ligand , 1970 .

[5]  H. B. Jonassen,et al.  Shielding Effect of Ortho-Substituents on Magnetic Moments and d-d Bands in Chloro-N-phenylsalicylideneiminatocopper(II) , 1969 .

[6]  M. Ciampolini.  Spectra of 3d five-coordinate complexes , 1969 .

[7]  C. Furlani.  Ligand field interpretation of some cases of pentacoordination , 1968 .

[8]  S. Yamada.  Recent aspects of the stereochemistry of schiff-base-metal complexes , 1966 .

[9]  L. Sacconi.  Tetrahedral complexes of nickel(II) and copper(II) with schiff bases , 1966 .

[10]  L. Sacconi.  Four-, five- and six-coordinated complexes of 3d metals with substituted salicylaldimines , 1966 .

[11]  M. Kondo,et al.  The Magnetic Susceptibilities of Dicyanammine Nickel(II) and the Clathrate Compounds thereof with Benzene and Pyridine , 1957 .

[12]  A. Nakahara,et al.  Intramolecular O-H-O Hydrogen Bonds in Bis-(Dimethylglyoximato)-Cobalt (III)-Complexes , 1955 .

[13]  K. Bowers,et al.  Anomalous paramagnetism of copper acetate , 1952, Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences.

[14]  R. E. Rundle,et al.  O–H Stretching Frequencies in Very Short and Possibly Symmetrical Hydrogen Bonds , 1952 .