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以3-对甲氧基苯基-4-对溴苯基-5-(2-吡啶基)-1,2,4-三氮唑(L)作为配体,合成了1个钴配合物[CoL2(H2O)2](ClO4)2.2C2H5OH,对其进行了红外、电喷雾质谱、热重分析和单晶结构表征,该配合物属于单斜晶系,空间群P21/n,a=0.876 3(5)nm,b=3.384 4(18)nm,c=0.920 3(5)nm,β=102.961(8)°,V=2.660(2)nm3,Z=2,R1=0.064 4。单晶结构表明,钴离子处于1个扭曲的八面体配位环境中,2个水分子呈反式配位,每个配体L通过三氮唑上的1个氮原子和吡啶氮原子参与配位。配体配位后三氮唑-吡啶间二面角反而变大。热重分析表明该配合物在345℃开始发生分解。
A cobalt complex was synthesized with 3-p-methoxyphenyl-4-p-bromophenyl-5- (2-pyridyl) -1,2,4-triazole (L) CoL2 (H2O) 2] (ClO4) 2.2C2H5OH was synthesized and characterized by IR, ESI-MS, TG and single crystal structure. The complex belongs to the monoclinic system with space group P21 / n, a = 0.876 3 (5) nm, b = 3.384 4 (18) nm, c = 0.920 3 (5) nm, β = 102.961 (8) °, V = 2.660 (2) nm3, Z = 2 and R1 = 0.064 4. The single crystal structure shows that the cobalt ions are in a twisted octahedral coordination environment and the two water molecules are trans coordinated. Each ligand L participates by one nitrogen atom on the triazole and the pyridine nitrogen atom Bit. After coordination of the ligand, the dihedral angle of the triazole-pyridine increases. Thermogravimetric analysis showed that the complex began to decompose at 345 ℃.