配合物[Zn(p-ABA)_2(phen)·(H_2O)]·H_2O的水热合成、晶体结构及热稳定性

Hydrothermal Synthesis,Crystal Structure and Thermal Stability of the Complex [Zn(p-ABA)_2(phen)·(H_2O)]·H_2O

在甲醇水混合溶剂中,以对乙酰氨基苯甲酸(p-ABA),1,10-邻菲咯啉(phen)为配体与高氯酸锌合成了标题配合物[Zn(p-ABA)2(phen).(H2O)].H2O。配合物(C30H26N4O8Zn,分子量为637.93)晶体属单斜晶系,空间群P21/c。晶体结构表明:锌原子与2个对乙酰氨基苯甲酸的2个氧原子,1个1,10-邻菲咯啉中的2个氮原子以及水分子中的氧原子配位,晶胞参数:a=1.36277(17)nm,b=1.8823(2)nm,c=1.25253(16)nm;β=114.500(2)°,V=2.9236(6)nm3,Dc=1.449 g.cm-3,Z=4,F(000)=1320,R1=0.0414,wR2=0.0878。形成五配位的三角双锥结构。对配合物热稳定性进行分析,结果表明,配合物在230.0℃以下稳定性好。

The title complex has been synthesized with p-acetamidobenzoic acid and 1,10-phenanthroline （phen） in the solvent mixture of water and methanol. It crystallizes （C40H42MnN4O6, Mr=729.72） in monoclinic space group P2l/c with a=1.36277（17） nm, b=1.8823（2） nm, c=1.25253（16） nm; fl=114.500（2）°, V=2.9236（6） nm^3, De= 1.449 g·cm^-3, Z=4, F（000）=1320, R1=0.041 4, wR2-0.0878. The crystal structure shows that the zinc atom is coordinated with three oxygen atoms from two p-acetamidobenzoic acids molecules and one water molecule respectively, two nitrogen atoms from the 1,10-phenanthroline, forming a distorted triangle bi-pyramid coordination geometry. The result of TG analysis shows that the title complex was stable under 230.0℃. CCDC： 665257.