Crystal structure of dichlorido(2,2′:6′,2′′-terpyridine-κ3N,N′,N′′)zinc: a redetermination

Acta Crystallographica Section E

Sheng-Li Li¹  Jian-Hua Yu¹  Cheng-Cheng Kong¹  Jia-Zheng Zhou¹ 

[1] Deparment of Chemistry, Anhui University, Hefei 230039, Peoples Republic of China, Key Laboratory of Functional Inorganic Materials, Chemistry, Hefei 230039, People's Republic of China;

关键词: crystal structure;    redetermination;    2,2′:6′,2′′-terpyridine;    zinc complex;    π–π interactions;   

DOI  :  10.1107/S1600536814023605

来源: DOAJ

【 摘 要 】

The crystal structure of the title compound, [ZnCl2(C15H11N3)], was redetermined based on modern CCD data. In comparison with the previous determination from photographic film data [Corbridge & Cox (1956). J. Chem. Soc. 159, 594–603; Einstein & Penfold (1966). Acta Cryst. 20, 924–926], all non-H atoms were refined with anisotropic displacement parameters, leading to a much higher precision in terms of bond lengths and angles [e.g. Zn—Cl = 2.2684 (8) and 2.2883 (11) compared to 2.25 (1) and 2.27 (1) Å]. In the title molecule, the ZnII atom is five-coordinated in a distorted square-pyramidal mode by two Cl atoms and by the three N atoms from the 2,2′:6′,2′′-terpyridine ligand. The latter is not planar and shows dihedral angles between the least-squares planes of the central pyridine ring and the terminal rings of 3.18 (8) and 6.36 (9)°. The molecules in the crystal structure pack with π–π interactions [centroid–centroid distance = 3.655 (2) Å] between pyridine rings of neighbouring terpyridine moieties. These, together with intermolecular C—H...Cl interactions, stablize the three-dimensional structure.

【 授权许可】

Unknown