Synthesis, structure, and magnetic properties of a tetranuclear copper(fII) complex with a triazenido ligand

Li, Wei; Tan, Xing-Wu; Lei, Wen-Jun; Zhan, Shu‐Zhong; Cao, Derong

doi:10.1007/s11243-010-9401-y

Cited by 4 publications

(2 citation statements)

References 24 publications

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“…[9,16] Most of these compounds show a magnetic susceptibility which has a maximum in the plot of the magnetic moment versus temperature. [17] In some, a strong anti-ferromagnetic coupling has been associated with the presence of more than one oxo-Cu bridge. [14,18] Oxo-Cu(II) species are important in many copper-catalyzed reactions that take place in biological systems which involve a reduction of oxygen molecules by Cu(I).…”

Section: Introductionmentioning

confidence: 99%

Synthesis, Experimental and Theoretical Characterization of (μ4-oxo)hexakis(μ2-chloro)-tetrakis[1-(allyl)-1H-imidazole]tetracopper(II)

Özdemir,

Fırıncı,

Günay

2023

Croat. Chem. Acta

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A new [Cu4OCl6L4] cluster [L = 1-(allyl)-1H-imidazole] has been isolated and its crystal structure and spectroscopic properties determined. The compound crystallizes as a yellow solid in the monoclinic system, space group P21, with cell constants a = 10.6937(7) Å, b = 13.1004(7) Å, c = 13.2452(9) Å, β = 93.537(6)°, and two formula units per cell. The title tetranuclear complex has a central µ4-oxide ion surrounded tetrahedrally by four Cu II atoms. Each Cu atom is connected to three others via bridging Cl atoms. The fifth coordination position, located on the central Cu─O axis on the outside of the cluster, is occupied by an N atom of the monodentate imidazole ligand. The resulting coordination geometry of the metal ion is a slightly distorted trigonal bipyramid with the O and N atoms in the axial positions. The molecular structure and spectroscopic data were obtained using density functional theory (DFT/HSEH1PBE) method with the cc-pVDZ basis set for C, H, N, O and Cl atoms, and the LANL2DZ basis set for the Cu atoms, and compared with the experimental data. Consequently, the experimental data well coherences with the theoretical ones.

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