Crystal structure of bis-(pivaloyl-hydroxamato-κ2O, O')copper(II)

Kateryna Goleva; Dina Naumova; Anna Pavlishchuk; Anthony W Addison; Matthias Zeller

doi:10.1107/S2056989018012227

Crystal structure of bis-(pivaloyl-hydroxamato-κ²O, O')copper(II)

Acta Crystallogr E Crystallogr Commun. 2018 Aug 31;74(Pt 9):1384-1387. doi: 10.1107/S2056989018012227. eCollection 2018 Sep 1.

Authors

Kateryna Goleva¹, Dina Naumova¹, Anna Pavlishchuk¹, Anthony W Addison², Matthias Zeller³

Affiliations

¹ Department of Chemistry, Taras Shevchenko National University of Kyiv, Volodymyrska str. 62, Kiev, 01601, Ukraine.
² Department of Chemistry, Drexel University, Philadelphia, PA 19104-2816, USA.
³ Department of Chemistry, Purdue University, 560 Oval Dr., West Lafayette, IN 47907-2084, USA.

Abstract

Reaction of copper(II) nitrate with pivaloyl-hydroxamic acid yielded the title compound, [Cu(pivHA)₂] (where pivHA^- is pivaloyl hydroxamate, C₅H₁₀NO₂). The centrosymmetric mononuclear complex consists of a Cu^II ion, which is located on a center of inversion, with two coordinated pivaloyl hydroxamate monoanions. The Cu^II ion has a square-planar coordination environment consisting of four O atoms - two carbonyl O atoms and two hydroxamate O atoms from two hydroxamate pivHA^- ligands. The pivHA^- anions are coordinated to copper(II) in a trans-mode, forming two five-membered O,O'-chelate rings.

Keywords: copper(II); crystal structure; hydroxamates; mononuclear complexes; pivalate derivatives.

Grants and funding

This work was funded by National Science Foundation, Division of Materials Research grant 1337296 to Matthias Zeller.