Crystal structure, spectroscopic characterization and Hirshfeld surface analysis of aquadichlorido{ N -[(pyridin-2-yl)methylidene]aniline}copper(II) monohydrate

• Published in: Acta crystallographica. Section E, Crystallographic communications Crystallographic communications, 2020-02, Vol.76 (2), p.148-154
• Main Authors: Molano, Miguel F., Lorett Velasquez, Vaneza P., Erben, Mauricio F., Nossa González, Diana L., Loaiza, Alix E., Echeverría, Gustavo A., Piro, Oscar E., Tobón, Yeny A., Ben Tayeb, Karima, Gómez Castaño, Jovanny A.
• Format: Article
• Language: English
• Subjects: Chemical Sciences; Coordination chemistry; copper(ii); crystal structure; distorted square pyramid; five-coordinate complexes; or physical chemistry; Theoretical and
• ISSN: 2056-9890; 2056-9890
• DOI: 10.1107/S2056989019017213

The reaction of N -phenyl-1-(pyridin-2-yl)methanimine with copper chloride dihydrate produced the title neutral complex, [CuCl 2 (C 12 H 10 N 2 )(H 2 O)]·H 2 O. The Cu II ion is five-coordinated in a distorted square-pyramidal geometry, in which the two N atoms of the bidentate Schiff base, as well as one chloro and a water molecule, form the irregular base of the pyramidal structure. Meanwhile, the apical chloride ligand interacts through a strong hydrogen bond with a water molecule of crystallization. In the crystal, molecules are arranged in pairs, forming a stacking of symmetrical cyclic dimers that interact in turn through strong hydrogen bonds between the chloride ligands and both the coordinated and the crystallization water molecules. The molecular and electronic structures of the complex were also studied in detail using EPR (continuous and pulsed), FT–IR and Raman spectroscopy, as well as magnetization measurements. Likewise, Hirshfeld surface analysis was used to investigate the intermolecular interactions in the crystal packing.