The thermal behavior of Mn(II) silanethiolate series [Mn(SR)2L(MeOH)n], where R=SSi(OBut)3, L=heterocyclic nitrogen base and n=0, 1 or 2 has been comparatively investigated using differential scanning calorimetry (DSC), thermogravimetry (TG) and TG-infrared spectoscopy (IR) techniques. The TG curves indicate the differences in the thermal decomposition due to presence of distinct N-donor ligands and labile MeOH molecules coordinated to the central atom. The first step on the TG curves (60–110°C) corresponds to the elimination of alcohol from respective complexes. The main step (150–350°C) can be assigned to the decomposition of the complexes yielding Mn3O4 and silica as the main final products, identified by X-ray diffraction patterns.
使用差示扫描量热法(
DSC)、热重分析法(TG)和TG-红外光谱法(IR)技术,对Mn(II)
硅硫醇酸盐系列[Mn(SR)2L(MeOH)n](其中R=SSi(OBut)3,L=杂环氮碱,n=0、1或2)的热行为进行了比较研究。TG曲线表明,由于存在不同的N供体
配体和与中心原子配位的活泼MeOH分子,热分解过程存在差异。TG曲线上的第一步(60–110°C)对应于各自配合物中
酒精的消除。主要步骤(150–350°C)可归因于配合物的分解,生成的主要最终产物为
Mn3O4和
硅石,这些产物通过X射线衍射图谱得以鉴定。