catena-Poly[[bis-(quinolin-8-amine-κ2 N, N')cadmium(II)]-μ-cyanido-κ2 N: C-[dicyanidonickel(II)]-μ-cyanido-κ2 C: N]

Selma Khelfa; Marwa Touil; Zouaoui Setifi; Fatima Setifi; Mohammed Hadi Al-Douh; Christopher Glidewell

doi:10.1107/S241431462100568X

catena-Poly[[bis-(quinolin-8-amine-κ² N, N')cadmium(II)]-μ-cyanido-κ² N: C-[dicyanidonickel(II)]-μ-cyanido-κ² C: N]

IUCrdata. 2021 Jun 8;6(Pt 6):x210568. doi: 10.1107/S241431462100568X. eCollection 2021 Jun.

Authors

Selma Khelfa^{1

2}, Marwa Touil^{1

2}, Zouaoui Setifi^{3

2}, Fatima Setifi², Mohammed Hadi Al-Douh⁴, Christopher Glidewell⁵

Affiliations

¹ Département de Chimie, Faculté des Sciences, Université 20 Août 1955-Skikda, BP 26, Route d'El-Hadaiek, Skikda 21000, Algeria.
² Laboratoire de Chimie, Ingénierie Moléculaire et Nanostructures (LCIMN), Université Ferhat Abbas Sétif 1, Sétif 19000, Algeria.
³ Département de Technologie, Faculté de Technologie, Université 20 Août 1955-Skikda, BP 26, Route d'El-Hadaiek, Skikda 21000, Algeria.
⁴ Chemistry Department, Faculty of Science, Hadhramout University, Mukalla, Hadhramout, Yemen.
⁵ School of Chemistry, University of St Andrews, St Andrews, Fife KY16 9ST, UK.

Abstract

In the title compound, [CdNi(C₉H₈N₂)₂(CN)₄] _n , the Cd and Ni atoms both lie on centres of inversion in space group P2₁/c. The Cd atom is coordinated by two bidentate quinolin-8-amine ligands and by the N atoms of two cyano ligands, while the square planar Ni atom is coordinated by the C atoms of four cyano ligands. These units form a one-dimensional coordination polymer containing an (-NC-Ni-CN-Cd-) _n backbone, and the coordination polymer chains are linked into a three-dimensional array by a combination of N-H⋯N and C-H⋯N hydrogen bonds, augmented by a π-π stacking inter-action.

Keywords: coordination polymer; crystal structure; hydrogen bonding; synthesis.

Grants and funding

FS gratefully acknowledges the Algerian MESRS (Ministère de l’Enseignement Supérieur et de la Recherche Scientifique), the DGRSDT (Direction Générale de la Recherche Scientifique et du Développement Technologique), as well as the Université Ferhat Abbas Sétif 1 for financial support.