A copper complex of an unusual hy­droxy–carboxyl­ate ligand: [Cu(bpy)(C(4)H(4)O(6))]

A copper(II) complex, (2,2′-bi­pyridine-κ(2) N,N′)[2-hy­droxy-2-(hy­droxy­methyl-κO)propane­dioato-κ(2) O (1),O (3)]copper(II), [Cu(C(4)H(4)O(6))(C(10)H(8)N(2))], containing the unusual anionic chelating ligand 2-(hy­droxy­meth­yl)tartronate, has been synthesized. [Cu(bpy)(2)(NO(3))](NO(3)) was mixe...

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Detalles Bibliográficos
Autores principales: Gao, Sen, Fronczek, Frank R., Maverick, Andrew W.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: International Union of Crystallography 2021
Materias:
Research Communications
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8061107/
https://www.ncbi.nlm.nih.gov/pubmed/33953952
http://dx.doi.org/10.1107/S2056989021001286
Descripción
Sumario:A copper(II) complex, (2,2′-bi­pyridine-κ(2) N,N′)[2-hy­droxy-2-(hy­droxy­methyl-κO)propane­dioato-κ(2) O (1),O (3)]copper(II), [Cu(C(4)H(4)O(6))(C(10)H(8)N(2))], containing the unusual anionic chelating ligand 2-(hy­droxy­meth­yl)tartronate, has been synthesized. [Cu(bpy)(2)(NO(3))](NO(3)) was mixed with ascorbic acid and Dabco (1,4-di­aza­bicyclo­[2.2.2]octa­ne) in DMF (dimethylformamide) solution in the presence of air to produce the title compound. The structure consists of square-pyramidal complexes that are joined by Cu⋯O contacts [2.703 (2) Å] into centrosymmetric dimers. The C(4)H(4)O(6) (2−) ligand, which occupies three coordination sites at Cu, has previously been identified as an oxidation product of ascorbate ion.

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