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Abstract A highly-nuclear copper complex [CuII8O(tBuDea)5(HtBuDea)Cl2][CuICl2]·2H2O (1) has been prepared in a one-pot reaction of copper chloride with N-tert-butyldiethanolamine in methanol in the open air. The structure of the complex… Click to show full abstract
Abstract A highly-nuclear copper complex [CuII8O(tBuDea)5(HtBuDea)Cl2][CuICl2]·2H2O (1) has been prepared in a one-pot reaction of copper chloride with N-tert-butyldiethanolamine in methanol in the open air. The structure of the complex was established by single-crystal X-ray analysis. The octanuclear close-packed core of 1 belongs to the {M8(μ3-X)6(μ-X)7} molecular structure type. The ESI-MS spectroscopy confirmed the stability of the whole core in methanol solution. From the ESI-MS and magnetic data the divalent oxidation state of all eight coppers in the Cu8 core was proposed. Electrochemical studies were undertaken to confirm the overall CuI/CuII composition of the complex. Thermogravimetric behaviour was studied and disclosed that the complex 1 is stable until 150 °C. The magnetic investigations revealed a dominant antiferromagnetic coupling between copper centres within the octanuclear cation.
Journal Title: Inorganica Chimica Acta
Year Published: 2017
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