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Rh(Ⅰ )的三苯基膦 (Ph3P)配合物RhCl(Ph3P) 3(简称TTC)系有机合成的高效催化剂。对固态TTC的红外光谱 (IR)、热分析 (DTA)等研究结果发现 ,在室温空气中该配合物的Ph3P配位体会发生氧化 ,导致TTC的组成及各项理化性质发生变化。从氧化的历程中 ,并未发现氧分子与Rh(Ⅰ )配位或氧在TTC配合物分子内转移 ,可以认为 ,其室温氧化机理是氧直接氧化膦配位体 ,使TTC逐步变为三苯基氧化膦 (Ph3PO)配位的Rh(Ⅰ )配合物。
Rh (Ⅰ) triphenylphosphine (Ph3P) complex RhCl (Ph3P) 3 (referred to as TTC) is an organic synthesis catalyst. The results of infrared spectroscopy (IR) and thermal analysis (DTA) of solid TTC showed that the Ph3P ligand of the complex was oxidized in air at room temperature, resulting in the change of composition and physicochemical properties of TTC. From the oxidation process, we did not find oxygen molecule with Rh (Ⅰ) or oxygen in the TTC complex intramolecular transfer, it is believed that the room temperature oxidation mechanism is oxygen direct phosphine oxide ligand, so that TTC gradually become tris Phenylphosphine oxide (Ph3PO) coordination Rh (Ⅰ) complex.