Abstract
The title compound, [Cu(C5H10NO3)2], was obtained unintentionally as the product of an attempted synthesis of a Cu/Cd mixed-metal mixed-anion complex using zerovalent copper, cadmium(II) oxide and two ammonium salts in the presence of 2-dimethylaminoethanol in acetonitrile, in air. The molecule is centrosymmetric with two monodeprotonated N-(2-hydroxyethyl)-N-methylglycines coordinated to the metal in a tridentate mode, giving a bicyclic chelate with two distorted five-membered rings. The CuII ion possesses a distorted octahedral geometry, with the N and the O atoms from the carboxylate groups in the equatorial plane. In the crystal structure, intermolecular O—H⋯O hydrogen-bonding interactions from the alkoxide functions of the ligand through the inversion centre form columns of molecules propagated along the a axis.
Highlights
The title compound, [Cu(C5H10NO3)2], was obtained unintentionally as the product of an attempted synthesis of a Cu/ Cd mixed-metal mixed-anion complex using zerovalent copper, cadmium(II) oxide and two ammonium salts in the presence of 2-dimethylaminoethanol in acetonitrile, in air
The molecule is centrosymmetric with two monodeprotonated N(2-hydroxyethyl)-N-methylglycines coordinated to the metal in a tridentate mode, giving a bicyclic chelate with two distorted five-membered rings
Intermolecular O—HÁ Á ÁO hydrogenbonding interactions from the alkoxide functions of the ligand through the inversion centre form columns of molecules propagated along the a axis
Summary
Key indicators: single-crystal X-ray study; T = 150 K; mean (C–C) = 0.002 A; R factor = 0.032; wR factor = 0.085; data-to-parameter ratio = 37.2. The molecule is centrosymmetric with two monodeprotonated N(2-hydroxyethyl)-N-methylglycines coordinated to the metal in a tridentate mode, giving a bicyclic chelate with two distorted five-membered rings. Intermolecular O—HÁ Á ÁO hydrogenbonding interactions from the alkoxide functions of the ligand through the inversion centre form columns of molecules propagated along the a axis. See: Thakuria & Das (2007). Crystal data [Cu(C5H10NO3)2] Mr = 327.82 Monoclinic, P21=n a = 6.6158 (9) Ab = 6.7018 (9) Ac = 14.950 (2) A = 96.738 (3)
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