A novel series of heterotrinuclear complexes with a tris(dimethylglyoximato)metal(II) anion as bridging ligand. Structure of the FeIIICuIIFeIII complex with S = 9/2 ground state

A series of linear heterotrinuclear complexes with a tris(dimethylglyoximato) metal(II) as bridging ligand, [LFeIII{µ-(dmg)3MII}FeIIIL](ClO4)2(M = Zn, Cu, Ni, Co, Fe, Mn), where L represents the cyclic triamine 1,4,7-trimethyl-1,4,7-triazacyclononane, has been synthesized and characterized by X-ray crystallography and magnetic susceptibility measurements.

[1]  R. Sessoli,et al.  Synthesis, crystal and molecular structure, and magnetic properties of bis[tris(.mu.-3,5-diamino-1,2,4-triazole-N1,N2)tris(thiocyanato-N)nickel(II)]nickel(II) hexahydrate , 1990 .

[2]  G. Brewer,et al.  Ferromagnetic coupling via imidazolate in an iron(III)-porphyrin-dicopper(II) system , 1989 .

[3]  D. Luneau,et al.  Synthesis and Structure of Completely Spin-coupled Trinuclear Copper(II) Complex, [Cu(dmg)2{Cu(bipy)(CH3OH)}2](NO3)2, Bridged by Bis(dimethylglyoximato)cuprate(II) Dianion , 1989 .

[4]  K. Wieghardt,et al.  Moderately strong intramolecular magnetic exchange interaction between the copper(II) ions separated by 11.25 .ANG. in [L2Cu2(OH2)2(.eta.-terephthalato)](ClO4)2 (L = 1,4,7-trimethyl-1,4,7-triazacyclononane) , 1988 .

[5]  O. Kahn,et al.  Irregular spin state structure in trinuclear species: magnetic and EPR properties of manganese(II)-copper(II)-manganese(II) and nickel(II)-copper(II)-nickel(II) compounds , 1988 .

[6]  K. Wieghardt,et al.  General route to .mu.-hydroxo-bis(.mu.-acetato)-bridged heterometal dinuclear complexes. Syntheses, magnetic and redox properties, electronic spectra, and molecular structures of the [Cr(III)-Co(II)] and [Cr(III)-Fe(II)] species , 1987 .

[7]  O. Kahn.  Magnetism of the heteropolymetallic systems , 1987 .

[8]  O. Kahn,et al.  Interactions in CuIICuIICuII, CuIIZnIICuII, and CuIINiIICuII trinuclear species. Crystal structure of bis(N,N'-bis(3-aminopropyl)oxamido)tricopper(II) perchlorate , 1986 .

[9]  A. Dei,et al.  EPR spectra of and exchange interactions in trinuclear complexes. 3. Synthesis, crystal structure and magnetic properties of the oxovanadium(IV) adduct of a tetradentate Schiff base copper(II) complex , 1985 .

[10]  W. Haase,et al.  Crystal and molecular structure and magnetic properties of linear trimeric copper(II) complexes with predominant ferromagnetic exchange interaction , 1985 .

[11]  J. G. Haasnoot,et al.  Crystal structure at 300 and 105 K, magnetic properties and Moessbauer spectra of bis(triaquatris(4-ethyltriazole-N1)iron(II)-N2,N2',N2")iron(II) hexakis(trifluoromethanesulfonate). A linear, trinuclear iron(II) compound, showing a unique high-spin-low-spin transition of the central iron atom , 1984 .

[12]  K. Wieghardt,et al.  New triply hydroxo-bridged complexes of chromium(III), cobalt(III), and rhodium(III): crystal structure of tris(.mu.-hydroxo)bis[(1,4,7-trimethyl-1,4,7-triazacyclononane)chromium(III)] triiodide trihydrate , 1982 .

[13]  James W. Hall,et al.  Magnetic Exchange in a Chloride- and Adeninium-Bridged Linear Trimer of Copper(II) -Octachlorobis(Adeninium)- Tricopper(II) Tetrahydrate , 1976 .

[14]  E. Sinn.  Magnetic exchange in polynuclear metal complexes , 1970 .

[15]  R. L. Martin,et al.  Magnetic exchange in transition metal complexes. IV. Linear trimeric bis(acetylacetonato)nickel(II) , 1968 .