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- W2085363537 abstract "Abstract A new angular trinuclear copper(II) complex [Cu3L1L2(1-MeIm)(H2O)](ClO4) (1), where H3L1 and H2L2 are penta and tetra-dentate Schiff base ligands, is prepared from a reaction of [CuL2] and [Cu2L1(μ-Br)] in the presence of 1-methylimidazole (1-MeIm) and isolated as a perchlorate salt. The complex which crystallizes in the monoclinic space group P21/n shows the presence of a discrete angular trinuclear copper(II) core in which the monomeric precursor is linked with the dimeric precursor through phenoxo bridges. The core structure resembles well with the active site structure of blue multicopper oxidases. The Cu⋯Cu separations of ca. 3.3 A in the angular unit is 0.4 A shorter than those observed in the active site of the oxidized form of ascorbate oxidase. The complex displays a visible band at 620 nm (e=500 M−1 cm−1) in DMSO. It shows magnetic moment values of 3.07 and 2.18 μB at 300 and 18 K, respectively, for the Cu3 cluster. The complex models the structural and magnetic properties of the trinuclear active site of blue copper oxidases." @default.
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- W2085363537 date "2004-02-01" @default.
- W2085363537 modified "2023-09-23" @default.
- W2085363537 title "An angular trinuclear copper(II) complex as a model for the active site of multicopper oxidases" @default.
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- W2085363537 doi "https://doi.org/10.1016/j.poly.2003.11.001" @default.
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