Acta Crystallographica Section E: Crystallographic Communications | |
Crystal structure of an HgII coordination polymer with an unsymmetrical dipyridyl ligand: catena-poly[[[dichloridomercury(II)]-μ-N-(pyridin-4-ylmethyl)pyridin-3-amine-κ2N:N′] chloroform hemisolvate] | |
Moon, S.-H.1  Kang, D.2  Park, K.-M.3  | |
[1] Department of Food and Nutrition, Kyungnam College of Information and Technology, Busan 47011, Republic of Korea;Department of Science Education, Kyungnam University, Changwon 51767, Republic of Korea;Research Institute of Natural Science, Gyeongsang National University, Jinju 52828, Republic of Korea | |
关键词: CRYSTAL STRUCTURE; HGII COMPOUND; UNSYMMETRICAL DIPYRIDYL LIGAND; ZIGZAG COORDINATION POLYMER; | |
DOI : 10.1107/S2056989016015310 | |
学科分类:数学(综合) | |
来源: International Union of Crystallography | |
【 摘 要 】
The asymmetric unit of the title compound, {[HgLCl2]·0.5CHCl3}n (L = N-(pyridin-4-ylmethyl)pyridin-3-amine, C11H11N3), contains one HgII ion, one bridging L ligand, two chloride ligands and a chloroform solvent molecule with half-occupancy that is disordered about a crystallographic twofold rotation axis. Each HgII ion is coordinated by two pyridine N atoms from two symmetry-related L ligands and two chloride anions in a highly distorted tetrahedral geometry with bond angles falling in the range 99.05 (17)–142.96 (7)°. Each L ligand bridges two HgII ions, forming polymeric zigzag chains propagating in [010]. In the crystal, the chains are linked by intermolecular N/C—H⋯Cl hydrogen bonds together with weak C—H⋯π interactions, resulting in the formation of a three-dimensional supramolecular network, which is further stabilized by C—Cl⋯π interactions between the solvent chloroform molecules and the pyridine rings of L [chloride-to-centroid distances = 3.442 (11) and 3.626 (13) Å]. In addition, weak Cl⋯Cl contacts [3.320 (5) Å] between the chloroform solvent molecules and the coordinating chloride anions are also observed.
【 授权许可】
CC BY
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