Synthesis and characterization of a new coordination compound of gold(III) with triphenylarsine oxide(TPAsO)

A new solid coordination compound of the type 1:1 of TPAsO to gold(III) was prepared firstly by means of the extraction method, but only the coordination compound of the type 2:1 was obtained by the method of direct synthesis. It was found in polar solvents that the 1:1 type coordination compound could transform to that of the 2:1 type slowly. By the data of thermoanalyses, a mechanism was suggested for thermal decomposition of the above two coordination compounds.