三核铁甲酸配合物的热解过程及其若干催化活性碎片的研究

STUDY ON THE THERMAL DECOMPOSITION PROCESS OF THE OXO-TRINUCLEAR IRON FORMATE COMPLEX AND SOME OF ITS CATALYTICAL ACTIVE FRAGMENTS

三重桥氧三核铁甲酸配合物[Fe_3(μ_3-O)(μ-O_2CH)_6(H_2O)_2·(O_2CH)]·2H_2O的热反应行为十分有趣,其在热解过程某阶段失去部分配体后的碎片能活化乙炔进行加氢或加水反应生成乙烯、乙醛和丙酮,为揭示这些活性碎片的本质,我们应用了原位红外光谱(in situ IR),热重(TG)、差热分析(DTA),气相色谱(GC)、X-射线粉未衍射(XRD)和质谱(MS)等手段综合研究该化合物的热解过程,求出各热解碎片的组成,并研究它们在不同条件下的反应性能.本文报道它们相互验证的定性及定量结果.

The reaction behavior and the thermal decomposition of the title complex is real interesting. It has been observed by in situ IR analysis that over 220 ??? some active components obtained by losing part of the ligands of the complex showed up activity for the addition reactions of acetylene forming the ethylcne, acetaldchyde and acetone. The process of thermal decomposition and the components of active fragments have been investigated by thcrmogravimetric analysis, differential thermal analysis, in situ IR, X-ray powder diffraction and MS data. The results of the analysis have been discussed as well.