配位聚合物{Zn(CF3COO)2(C5H5ON)·H2O}n的合成、晶体结构及表征

摘要

new coordination polymer {[Zn(CF3COO)2(C5H5ON)]·H2O}n was synthesized based on the reaction of zinc(Ⅱ) trifluoroacetate and 3-hydroxypyridine (C5H5ON) in methanol medium for the first time. The structure of the coordination polymer was confirmed by IR, 1H NMR, elemental analysis and thermal analysis. The crystal structure of the coordination polymer was also determined by X-ray single crystal diffraction. The crystal belongs to monoclinic system with space group P21/m, and crystallographic data of the coordination polymer are: α=0.8631(4)nm, b=0.7177(3)nm, c=1.116 4(5)nm, α=γ=90°，β=107.542(6)°, V=0.6594(5)nm3; Dc=2.037g·cm-3;Z=2; F(000)=400；μ=1.969mm-1. Zinc(Ⅱ) atom lies at the center of an octahedron formed by the coordination of zinc atom and six O atoms which come from four different trifluoroacetate ions and two different 3-hydroxypyridine molecules where each trifluoroacetate ion and 3-hydroxypyridine are coordinated to two different zinc ions to form coordination polymer. CCDC: 253909.