对甲苯基烷基亚砜与钯(Ⅱ)配合物的合成及热分析研究

STUDIES ON SYNTHESIS AND THERMAL CHARACTERIZATION OF COMPLEXES OF PALLADIUM(II) CHLORIDE WITH p-METHYL PHENYL ALKYL SULPHOXIDE

对甲苯基烷基亚砜(RSOPhCH_3)对钯的萃取研究及其与钯(Ⅱ)的固体配合物的合成迄今尚未见报道。本文首次制备了五种不同取代烷基的系列配体的钯(Ⅱ)配合物(R=n-C_4H_9,C_6H_(13),C_8H_(17),C_(10)H_(21)和C_(12)H_(25)),采用元素分析、红外光谱等方法鉴定其组成。由于研究该系列配合物的性质,如热稳定性等能有助于对它们萃取机理的进一步探索,因此,本文应用热重分析法(TG-DTG)研究了配合物的热分解过程,分别应用Freeman-Carroll,Coats-Redfern和Kissinger方程获得了它们的热分解活化能,并讨论了配合物的热分解行为与配合物配体中取代烷基之间的关系。

Five solid complexes of palladium(II) chloride with p-mcthyl phcnyl alkyl sulphoxide have first been synthesized and studied by means of TG-DTG techniques. The activation energies of the processes of thermal decomposition of the complexes were calculated by Freeman-Carroll, Kissinger, and Coats-Redfern methods respectively. The results obtained with the three methods may be considered to be consistent.