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在水热条件下,5-(4-吡啶基)四氮唑(4-PTZ)分别与氯化锌和氯化镉反应,得到2个基于此配体的配位聚合物,它们的分子式分别为{[Zn(4-PTZ)2Cl2]·4H2O}n(1)和{[Cd3(4-PTZ)2(H2O)2Cl6]·3H2O}n(2),且表现出不同的配位模式。这2个化合物均结晶在单斜晶系,化合物1的晶胞参数分别为:a=0.691 75(8)nm;b=2.668 8(3)nm;c=1.122 66(12)nm;β=93.535 0(10)°;V=2.068 7(4)nm3;Z=4;R1=0.031 8(I>2σ(I));w R2=0.082 9;空间群为P21/n。化合物2的晶胞参数分别为:a=1.897 13(13)nm;b=1.055 79(7)nm;c=1.446 49(10)nm;β=102.489 0(10)°;V=2.828 7(3)nm3;Z=4;R1=0.026 2(I>2σ(I));w R2=0.134 3;空间群为C2/c。通过元素分析、红外光谱分析和热重分析对该化合物进行了表征,另外荧光测定结果显示化合物1和2的固态粉末在室温下均表现出较强的紫外荧光发射特性。
Under hydrothermal conditions, 5- (4-pyridyl) tetrazolium (4-PTZ) was reacted with zinc chloride and cadmium chloride respectively to obtain two ligands based on this ligand. Their formulas Are {[Zn (4-PTZ) 2Cl2] · 4H2O} n (1) and {[Cd3 (4-PTZ) 2 (H2O) 2Cl6] · 3H2O} n (2) and show different coordination modes. The two compounds all crystallize in monoclinic system. The unit cell parameters of compound 1 are as follows: a = 0.691 75 (8) nm; b = 2.668 8 (3) nm; c = 1.122 66 R1 = 0.031 8 (I> 2σ (I)); w R2 = 0.082 9; the space group is P21 / n. The unit cell parameters of compound 2 are: a = 1.897 13 (13) nm; b = 1.055 79 (7) nm; c = 1.446 49 (10) nm; R1 = 0.0262 (I> 2σ (I)); w R2 = 0.134 3; space group is C2 / c. The compounds were characterized by elemental analysis, infrared spectroscopy and thermogravimetric analysis. In addition, the results of fluorescence measurements showed that the solid powders of compounds 1 and 2 showed strong UV fluorescence emission characteristics at room temperature.