Polynuclear Hydrides
A prefix di-, tri- etc. is added to the parent hydride name. Examples are:
- HOOH, dioxidane (hydrogen peroxide is an acceptable name)
- H2PPH2, diphosphane
- H3SiSiH2SiH2SiH3, tetrasilane
Read more about this topic: IUPAC Nomenclature Of Inorganic Chemistry 2005