There are many transition metal complexes which are often used in catalysis, so the preparation of new types of complexes is also important. These include pincer PNP, PCP and CNC complexes with metals.
Complexes of different metals differ greatly in their stability, so their preparation and use are highly dependent on this. Since the metals in these complexes have different oxidation states, it also depends on which ligands and how strongly they bind to the metal.
Among all these complexes, the hydride complexes of transition metals are of great interest to researchers, especially the monodentate hydride complexes or monohydride complexes. In these complexes, there is basically only one site where the reaction can occur, so we can better control the reaction. Relatively few such transition metal complexes are known, mainly iridium and rhodium ones.
In my master's thesis, I did a partial literature survey of transition metal hydride complexes and prepared and studied the oxidation reactions of Au(I) monohydride complexes with oxygen and ozone.