A copper complex of an unusual hy-droxy-carboxyl-ate ligand: [Cu(bpy)(C 4 H 4 O 6 )].

Autor: Gao S; Department of Chemistry, Louisiana State University, Baton Rouge, LA 70803, USA., Fronczek FR; Department of Chemistry, Louisiana State University, Baton Rouge, LA 70803, USA., Maverick AW; Department of Chemistry, Louisiana State University, Baton Rouge, LA 70803, USA.
Jazyk: angličtina
Zdroj: Acta crystallographica. Section E, Crystallographic communications [Acta Crystallogr E Crystallogr Commun] 2021 Feb 19; Vol. 77 (Pt 3), pp. 282-285. Date of Electronic Publication: 2021 Feb 19 (Print Publication: 2021).
DOI: 10.1107/S2056989021001286
Abstrakt: A copper(II) complex, (2,2'-bi-pyridine-κ 2 N , N ')[2-hy-droxy-2-(hy-droxy-methyl-κ O )propane-dioato-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-(hy-droxy-meth-yl)tartronate, has been synthesized. [Cu(bpy) 2 (NO 3 )](NO 3 ) was mixed with ascorbic acid and Dabco (1,4-di-aza-bicyclo-[2.2.2]octa-ne) 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.
(© Gao et al. 2021.)
Databáze: MEDLINE
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