The thermal properties of dimethylgold(III) carboxylates of general formula [(CH3)2Au(OOCR)]2 (R=methyl (1), tert-buthyl (2), trifluoromethyl (3), or phenyl (4)) in solid state have been investigated by the thermogravimetric analysis. The temperature dependences of saturated vapour pressure of complexes have been studied by the Knudsen effusion method with mass spectrometric indication. The thermodynamic parameters Δsub H T 0 and Δsub S T 0 of the sublimation processes have been calculated. Thermal decomposition of the vapour of complexes 1 and 2 has been studied by means of high temperature mass spectrometry in vacuum, and by-products of decomposition have been determined.
热重分析法研究了通式为 [(
CH3)2Au(OOCR)]2(R=
甲基(1)、叔丁基(2)、三
氟甲基(3)或
苯基(4))的二
甲基金(III)
羧酸盐在固态下的热特性。通过克努森流出法和质谱指示,研究了络合物饱和蒸汽压的温度依赖性。计算了升华过程的热力学参数 Δsub H T 0 和 Δsub S T 0。通过真空高温质谱法研究了络合物 1 和 2 蒸汽的热分解,并确定了分解的副产物。