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在水热条件下,利用四唑吡啶(4-PTZ)、Cu2(OH)2CO3反应获得了一种新型微孔配合物[Cu(4-PTZ)].H2O(其中4-PTZ=四唑吡啶),通过X-射线单晶衍射技术测定了晶体结构。配合物属单斜晶系,空间群P21/c,晶胞参数:a=5.7 176(5)nm,b=16.7 670(14)nm,c=9.3 620(8)nm;α=90.000°,β=97.480(10)°,γ=90.000°。中心Cu(Ⅰ)原子分别与1个4-PTZ中的吡啶N原子及另外3个4-PTZ中的四唑N原子配位形成畸变的四面体构型。在配合物中,4-PTZ的四唑基团采用μ3桥连方式连接紧邻Cu(Ⅰ)原子,沿c轴形成一维共边双股螺旋链,进而通过4-PTZ吡啶环的连接作用拓展为具有(42.63.8)拓扑结构的三维微孔配位聚合物。
A new microporous complex [Cu (4-PTZ)]. H2O (4-PTZ = tetrazolopyridine) was obtained by the reaction of tetrazolium pyridine (4-PTZ) and Cu2 ), The crystal structure was determined by X-ray single crystal diffraction technique. The complex belongs to the monoclinic system with a space group of P21 / c with unit cell parameters of a = 5.7 176 (5) nm and b = 16.7 670 nm, c = 9.3 620 (8) nm and α = 90.000 °, β = 97.480 (10) °, γ = 90.000 °. The central Cu (I) atoms coordinate to the pyridine N atom in one 4-PTZ and the tetrazole N atoms in the other three 4-PTZ, respectively, to form a distorted tetrahedral configuration. In the complex, the tetrazolyl group of 4-PTZ is connected to the Cu (I) atom by μ3 bridge and forms a one-dimensional co-axial double-stranded helix along the c-axis and then extends through the linkage of the 4-PTZ pyridine ring Is a three-dimensional microporous coordination polymer with (42.63.8) topological structure.