Abstract
Catena-poly-trans-µ-(squarato-O1,O3)bis(monoethanolamine)copper(II), [Cu(µ-C4O4)(C2H7NO)2] n has been prepared and characterized by elemental analysis, IR, UV-Vis, EPR, thermal analysis and single crystal X-ray diffraction. The compound crystallizes in the triclinic system, space group P-1, with a = 5.1435(7), b = 7.2931(10), c = 7.5198(11) Å, α =105.940(11)°, β = 98.731(11)°, γ = 101.981(11)° and Z = 1. The structure contains chains of squarato-O1,O3-bridged polynuclear copper(II) units. The configuration around each copper is distorted octahedral with two nitrogen and two oxygen atoms of two bidentate neutral monoethanolamine (N, O) ligands and two oxygen atoms of two squarato (μ-O1,O3) ligands. These chains are held together by an extensive three-dimensional network of N-H ··· O type intermolecular hydrogen bonds and van der Waals forces. The IR, UV-Vis and EPR spectra, magnetic study and thermal analysis of the complex are described.
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