Crystal structure and Hirshfeld surface analysis of di-iodido-{ N'-[(E)-(phen-yl)(pyridin-2-yl-κ N)methylidene]pyridine-2-carbohydrazide-κ2 N', O}cadmium(II)

Zeliha Atioğlu; Farhad Akbari Afkhami; Mehmet Akkurt; Ali Akbar Khandar; Duane Choquesillo-Lazarte

doi:10.1107/S2056989019008831

Crystal structure and Hirshfeld surface analysis of di-iodido-{ N'-[(E)-(phen-yl)(pyridin-2-yl-κ N)methylidene]pyridine-2-carbohydrazide-κ² N', O}cadmium(II)

Acta Crystallogr E Crystallogr Commun. 2019 Jun 25;75(Pt 7):1061-1064. doi: 10.1107/S2056989019008831. eCollection 2019 Jul 1.

Authors

Zeliha Atioğlu¹, Farhad Akbari Afkhami², Mehmet Akkurt³, Ali Akbar Khandar², Duane Choquesillo-Lazarte⁴

Affiliations

¹ İlke Education and Health Foundation, Cappadocia University, Cappadocia Vocational College, The Medical Imaging Techniques Program, 50420 Mustafapaşa,Ürgüp, Nevşehir, Turkey.
² Department of Inorganic Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran.
³ Department of Physics, Faculty of Sciences, Erciyes University, 38039 Kayseri, Turkey.
⁴ Laboratorio de Estudios Cristalograficos, IACT, CSIC-Universidad de Granada, Av. De las Palmeras 4, E-18100 Armilla, Granada, Spain.

Abstract

In each of the two independent mol-ecules in the asymmetric unit of the title compound, [CdI₂(C₁₈H₁₄N₄O)], the N,O,N'-tridentate N'-[(E)-(phen-yl)(pyridin-2-yl-κN)methyl-idene]pyridine-2-carbohydrazide ligand and two iodide anions form an I₂N₂O penta-coordination sphere, with a distorted square-pyramidal geometry, with an I atom in the apical position. Both mol-ecules feature an intra-molecular N-H⋯N hydrogen bond. In the crystal, weak aromatic π-π stacking inter-actions [centroid-centroid separation = 3.830 (2) Å] link the mol-ecules into dimers.

Keywords: Hirshfeld surface analysis; N′-[(E)-(pyridin-2-yl)methylidene]pyridine-2-carbohydrazide; cadmium; crystal structure; hydrogen bonding; iodide.