邻苯二酚锰配合物的合成、结构表征及热分析

Synthesis,Structure Characterization and Thermal Analysis of Pyrocatechol Manganese Complex

摘要: 用半固相反应法合成无水邻苯二酚锰.用EDTA滴定法测定锰的含量,通过元素分析、X-射线粉末衍射确定它的组成和结构.结果表明,配合物属单斜晶系,晶胞参数a=3.598 nm,b=12.910 nm,c=4.343nm,β=124.406°.用热重法(TG)和差示扫描量热法(DSC)研究了它在氮气气氛中的热分解过程,邻苯二酚锰在氮气气氛中一步分解生成氧化锰和有机化合物,生成的有机化合物成分比较复杂,主要成分是邻苯醌、9,10-蒽醌等

Abstract: Pyrocatechol manganese was synthesized by semi-solid phase method.Its composition and crystal structure was determined with EDTA titration,elemental analysis and the X-ray diffraction.The complex has a monoclinic structure with a=3.598 nm,b=12.910 nm,c=4.343 nm and β=124.406°.The mechanism of thermal decomposition of catechol manganese in nitrogen atmosphere was studied by thermogravimetric(TG) and differential scanning calorimetry(DSC).Pyrocatechol manganese decomposed to manganese oxide and or...