Abstract: | The complexes H3Os3(CO)9CMe, H2Os3(CO)10, H2Os3(CO)9L (L = PEt3, PPh3 or AsPh3), HOs3(CO)10CHC(H)Ph, and Os3(CO)10HC2Me undergo protonation in acid to yield [H4Os3(CO)9CMe]+ and [H4Os3(CO)10]2+, [H3Os3(CO)9L]+, [H2Os3(CO)10CHC(H)Ph]+ and [HOs3(CO)10HC2Me]+, respectively. The structure of these ions and their hydrido-ligand transfer reactions are described. |