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- W2746552401 endingPage "346" @default.
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- W2746552401 abstract "Three elongated (4+1) square pyramidal copper(II) complexes, [Cu2(L)2(μ1,1-N3)2]·H2O (1), [Cu2(L)2(μ1,1-NCO)2] (2) and [Cu(L)(μ1,5-dca)]n (3) [HL = 1((2-(methylamino)ethylimino)methyl)naphthalen-2-ol and dca = dicyanamide], have been synthesized using a tridentate N2O donor Schiff base ligand (HL) and characterized. Complexes 1 and 2 are centrosymmetric dimers in which copper(II) centres are connected by asymmetric double end on pseudohalide bridges. Complex 3 features a 1D zigzag chain in which copper(II) centres are connected by end to end dca bridges. Variable temperature (2–300 K) magnetic susceptibility measurements indicate the presence of antiferromagnetic exchange coupling between copper(II) centres in complexes 1 (J = −2.313 cm−1) and 3 (J = −0.344 cm−1), whereas complex 2 shows ferromagnetic exchange coupling between copper(II) centres (J = 0.513 cm−1). DFT calculations also corroborate the data. The fluid solution EPR spectra recorded at 293 K are typical of copper(II) species. Significant supramolecular interactions are explored using high level DFT calculations (BP86-D3/def2-TZVP) and characterized by Bader’s theory of “atoms-in-molecules”." @default.
- W2746552401 created "2017-08-31" @default.
- W2746552401 creator A5013560967 @default.
- W2746552401 creator A5013755617 @default.
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- W2746552401 creator A5037112571 @default.
- W2746552401 creator A5045428627 @default.
- W2746552401 creator A5051579496 @default.
- W2746552401 date "2017-11-01" @default.
- W2746552401 modified "2023-10-16" @default.
- W2746552401 title "A polynuclear and two dinuclear copper(II) Schiff base complexes: Synthesis, characterization, self-assembly, magnetic property and DFT study" @default.
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