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metal-organic compounds
The crystal structure of the title compound, [Cu(C7H4NO4)2(C6H7NO)2]n, has been studied at 100 (2) K. The structure contains a linear polymeric chain of CuII atoms, which lie on centres of inversion and are doubly bridged by 3-pyridylmethanol molecules. Two coordination positions on each Cu centre are occupied by O atoms from 3-pyridylmethanol, with two other positions occupied by piridyl N atoms. Monodentate 2-nitrobenzoate anions bind to Cu in axial positions so that the copper(II) chromophore is trans-[CuO2N2O′2]. The axially bound 2-nitrobenzoate anions form strong intramolecular O—H
O hydrogen bonds with the OH groups of the 3-pyridylmethanol molecules. The resulting linear chains are held together by weak van der Waals interactions.
O hydrogen bonds with the OH groups of the 3-pyridylmethanol molecules. The resulting linear chains are held together by weak van der Waals interactions.
