Table of Contents
International Journal of Inorganic Chemistry
Volume 2011, Article ID 606271, 9 pages
http://dx.doi.org/10.1155/2011/606271
Research Article

Synthesis and Structural Characterization of a New Tetranuclear Nickel(II) Sulfato Complex Containing the Anionic Form of Di-2-Pyridyl Ketone Oxime

1Department of Chemistry, University of Cyprus, 1678 Nicosia, Cyprus
2Department of Chemistry, University of Florida, Gainesville, FL 32611-7200, USA
3Department of Chemistry, University of Patras, 265 04 Patras, Greece

Received 7 December 2010; Accepted 26 January 2011

Academic Editor: Daniel L. Reger

Copyright © 2011 Eleni Moushi et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The preparation and crystal structure of a tetranuclear Ni(II) sulfato cluster containing the anion of di-2-pyridyl ketone oxime, (py)2CNO, are reported. Treatment of NiSO4·6H2O with one equivalent of (py)2CNOH and one equivalent of NEt3 in MeOH leads to the compound [Ni4{(py)2CNO}4(SO4)2(MeOH)4] (1) in moderate yield. The metal ions are linked together by two 3.2111 and two 2.1110 (Harris notation) (py)2CNO ligands, as well as two 2.1100 SO42− ions to create a rare metallacrown-type (12-MC-4) ring. Strong H-bond intermolecular interactions in 1 lead to the formation of a 1D chain along the 𝑐 axis. Characteristic IR bands are discussed in terms of the known structure of 1.