A three-dimensional polycatenation framework: catena-poly[[diaquabis(4-{4-[4-(pyridin-4-yl)phenoxy]phenyl}pyridine)nickel(II)]-μ2-naphthalene-2,6-dicarboxylato]

• Published in: Acta crystallographica. Section C, Crystal structure communications Vol. 69; no. 9; pp. 1022 - 1025
• Main Authors: Guo, Cui-Lian, Yao, Xiao-Qiang, Cheng, Yong-Qiang, Liu, Yan
• Format: Journal Article
• Language: English
• Published: 5 Abbey Square, Chester, Cheshire CH1 2HU, England International Union of Crystallography 01.09.2013; Wiley Subscription Services, Inc
• Subjects: Chemical compounds; Crystal structure; Crystallography; Hydrogen bonds; Molecules; nickel complexes; polycatenation networks; crystal structure; nickel complexes; polycatenation networks
• ISSN: 0108-2701; 1600-5759
• DOI: 10.1107/S010827011302012X

In the title compound, [Ni(C12H6O4)(C22H16N2O)2(H2O)2]n, the Ni2+ cation resides on a centre of inversion in a slightly distorted octahedral [N2O4] environment. The two carboxylate groups of each naphthalene‐2,6‐dicarboxylate (NDC2−) ligand, which reside on centres of inversion, link the NiII cations into a one‐dimensional chain. Identical chains are linked by intermolecular hydrogen bonds between coordinated water molecules and the uncoordinated N atoms of 4‐{4‐[4‐(pyridin‐4‐yl)phenoxy]phenyl}pyridine ligands to form (4,4)‐topological sheets, and then the different sheets are interlocked in an inclined fashion to give a three‐dimensional polycatenation network. The stability of the structure is further enhanced by π–π stacking interactions between pyridine and benzene rings.