A coordination polymer of mercury(II) formed by triazole-based and chloride linkers

作者：Hosseini Seyed Ghorban^*; Moeini Keyvan; Abdelbaky Mohammed S M; Garcia Granda Santiago

来源：Zeitschrift fur Naturforschung Section B-A Journal of Chemical Sciences, 2017, 72(8): 573-577.

DOI：10.1515/znb-2017-0052

• 2D coordination polymer
• mercury
• seesaw geometry
• triazole
• X-ray crystal structure

In this work, a coordination polymer formed from 4,5-diamino-3-methyl-4H-1,2,4-triazol-1-ium chloride (DAMT center dot HCl) and HgCl 2 formulated as [Hg-5 (mu-DAMT)(2) (mu-Cl)(6) (mu(3)-Cl)(2) Cl-2](n) has been prepared and characterized by elemental analysis, FT-IR, H-1 NMR spectroscopy, and single-crystal X-ray diffraction. X-ray analysis of the complex revealed an organic-inorganic hybrid coordination polymer containing three different mercury atoms with coordination numbers of 4 (HgN(mu-Cl)(2) (mu(3)-Cl)), 5 (Hg(mu-Cl)(3)(mu(3)-Cl) Cl), and 6 (HgN 2 (mu-Cl)(2) (mu(3)-Cl)(2)) and seesaw, octahedral, and square pyramidal geometries, respectively. The polymeric chains are extended to a three-dimensional (3D) array by C-H center dot center dot center dot Cl and N-H center dot center dot center dot Cl interactions. In addition to these hydrogen bonds, there are Hg center dot center dot center dot Cl interactions with the mercury atoms with coordination numbers 4 and 5 to complete their pseudo-square planar and -octahedral geometries, respectively.

• 出版日期2017-8