Novel Ferromagnetic Coupling Dicopper(II), Antiferromagnetic Dicobalt(II) and Dimanganese(II) Complexes with 3-Nitro-phthalato as Bridging Ligand: Synthesis, Spectrum and Magnetism

• Autorzy: Ma S. L. , Zhang L. Z. , Lu L. L. , Tang M. Y.
• Języki publikacji: EN

Abstrakty

EN

Novel copper(II), cobalt(II) and manganese(II) binuclear complexes have been synthesized, namely [Cu2(3-NO2-phth)(phen)4](ClO4)2 and [M2(3-NO2-phth)(phen)4(H2O)2](ClO4)2, whereM=Co orMn, phen = 1,10-phenanthroline and 3-NO2-phth denotes 3-nitro-phthalate dianion. Magnetic susceptibility measurements between 4.2-300 K (or 77-300 K) demonstrate a ferromagnetic interaction between two copper(II) ions in the Cu-Cu complex, and a weak antiferromagnetic interaction between the metal ions in Co-Co and Mn-Mn complexes. Based on spin Hamiltonian operator, _H = -2J _ S1_ _ S2 (S1=S2 = 1/2, S1=S2 = 3/2 or S1 = S2 = 5/2), J is found to be equal to +5.26 cm-1, -1.72 cm-1 and -0.62 cm-1 for the Cu-Cu, Co-Co and Mn-Mn complexes, respectively

Słowa kluczowe

EN

binuclear complexes; ferromagnetic coupling; 3-N02-phth bridging ligand

• Wydawca: Polskie Towarzystwo Chemiczne
• Czasopismo: Polish Journal of Chemistry
• Rocznik: 2002
• Tom: Vol. 76 / nr 4
• Strony: 511--517
• Opis fizyczny: Bibliogr. 22 poz., rys.

Twórcy

autor

Ma S. L.

• Department of Pharmaceutical Engineering, Tianjin University of Commerce, Tianjin, 300134, P.R. of China

autor

Zhang L. Z.

• Department of Pharmaceutical Engineering, Tianjin University of Commerce, Tianjin, 300134, P.R. of China

autor

Lu L. L.

• Department of Pharmaceutical Engineering, Tianjin University of Commerce, Tianjin, 300134, P.R. of China

autor

Tang M. Y.

• Department of Pharmaceutical Engineering, Tianjin University of Commerce, Tianjin, 300134, P.R. of China

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