摘要
三氯化钛分别与苹果酸铵、酒石酸铵和柠檬酸铵反应，制得三种新的固态配合物：苹果酸羟基钛（Ⅲ）、酒石酸羟基钛（Ⅲ）和柠檬酸钛（Ⅲ）（化学式分别为Ｔｉ（ＯＨ）（Ｃ４Ｈ４Ｏ５）·１．５Ｈ２Ｏ、Ｔｉ（ＯＨ）（Ｃ４Ｈ４Ｏ６）·１．５Ｈ２Ｏ和Ｔｉ（Ｃ６Ｈ５Ｏ７）·１．５Ｈ２Ｏ）。通过化学分析和元素分析确定了配合物的组成；用磁化率、Ｘ射线粉末衍射、ＩＲ等对其结构进行了表征；用ＴＧ和ＤＳＣ研究了它们在空气氛下的热分解特性，计算机求解热分解反应各阶段的活化能Ｅａ、焓变ΔｒＨ和熵变ΔｒＳ。
The title compounds:Ti(OH)(C 4H 4O 5)·1.5H 2O, Ti(OH)(C 4H 4O 6)·1.5H 2O and Ti(C 6H 5O 7)·1.5H 2O were synthesized by the reaction of titanium trichloride with ammonium malate, ammonium tartrate, ammonium citrate respectively. The composition of these products was determined by the methods of chemical, elemental analyses. Its coordination structure was assigned on the basis of magnetic susceptibility, IR and X ray diffraction. They were not yet reported. The thermal decomposition reaction of titanium(Ⅲ) hydrocarboxylate in air were studied. The activity energy E a,enthalpy chanqe Δ r H and entropy change Δ r S were determined from TG and DSC curves.
出处
《无机化学学报》
SCIE
CAS
CSCD
北大核心
1997年第1期16-20,共5页
Chinese Journal of Inorganic Chemistry
关键词
羟基羧酸
合成
热分解
钛配合物
titanium(Ⅲ) hydrocarboxylate synthesis thermal decomposition
