Received 27 September 2013
aDepartment of Applied Chemistry, Cochin University of Science and Technology, Kochi 682 022, India,bDepartment of Chemistry, Faculty of Science, Eastern University, Sri Lanka, Chenkalady, Sri Lanka,cDepartment of Chemistry, University of Malaya, 50603 Kuala Lumpur, Malaysia, and dChemistry Department, King Abdulaziz University, PO Box 80203 Jeddah, Saudi Arabia
Correspondence e-mail: firstname.lastname@example.org
The title compound, [CuCl2(C19H16N4O)], contains a CuII atom N,N',O-chelated by a neutral N-phenylhydrazinecarboxamide ligand and additionally coordinated by two Cl atoms, resulting in a distorted square-pyramidal geometry. The ligating atoms in the basal square plane of the complex comprise the azomethine N, the pyridine N, the amide O and one of the Cl atoms, whereas the other Cl atom occupies an apical position. The apical Cl atoms in adjacent layers function as hydrogen-bond acceptors to both NH groups. Intermolecular C-HCl and C-HO interactions are also observed.
For the biological applications of hydrazinecarboxamide and its derivatives, see: Beraldo & Gambino (2004); Kasuga et al. (2006); Rivadeneira et al. (2009); Shalini et al. (2009); Rodriguez-Arguelles et al. (2010). For the synthesis of related compounds, see: Kurup et al. (2011). For related structures, see: Kunnath et al. (2012). For the calculation of the trigonality index, see: Addison et al. (1984). For the graph-set notation, see: Etter et al. (1990).
Data collection: APEX2 (Bruker, 2004); cell refinement: APEX2/SAINT (Bruker, 2004); data reduction: SAINT/XPREP (Bruker, 2004); program(s) used to solve structure: SHELXL97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 (Farrugia, 2012) and DIAMOND (Brandenburg, 2010); software used to prepare material for publication: SHELXL97 and publCIF (Westrip, 2010).
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: FJ2644 ).
NA thanks the University Grants Commission (India) for a Junior Research Fellowship. We thank the Sophisticated Analytical Instruments Facility, Cochin University of S&T, for the diffraction measurements. MRPK thanks the University Grants Commission, New Delhi, for a UGC-BSR one-time grant to faculty. We also thank the Ministry of Higher Education of Malaysia (grant No. UM·C/HIR/MOHE/SC/12) for supporting this study.
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