三价铬与丙二酸形成的配合物的热解过程研究

STUDY ON THE THERMAL DECOMPOSITION OF THE CHROMIUM(Ⅲ) MALONATE COMPLEX

利用热重分析及原位红外光谱等方法，定性、定量地研究了三价铬和丙二酸形成的配合物［Ｃｒ（Ｃ３Ｈ２Ｏ４）（Ｈ２Ｏ）］［Ｃｒ（Ｃ３Ｈ２Ｏ４）２（Ｈ２Ｏ）２］·４Ｈ２Ｏ的热解过程，提出了室温至４００℃下的详细热解途径．基于多种实验结果，分析了螯合物中六员环的化学键断裂方式，并由配合物的快原子轰击质谱（ＦＡＢ－ＭＳ）加以佐证．

he thermal decomposition of chromium(Ⅲ) malonate complex [Cr(C3H2O4)(H2O)4][Cr(C3H2O4)2(H2O)2]·4H2O has been studied quantitatively and qualitatively by thermogravimetric analysis and in situ variable-temperature IR spectroscopy, the detail process from R.T.to 400℃ is proposed. According to a great deal of experiments, the fragmentation type of the coordinating bidentate malonate was analyzed,and verified by FAB-MS data as well.