Germanide nitrides or nitride germanides are compounds containing anions composed of nitride (N3−) and germanide (Ge4−). They can be considered as mixed anion compounds or intermetallic compounds, as germanium could be considered as a metal. Related compounds include the nitride silicides, phosphide silicides, germanide phosphides, germanide arsenides, germanide antimonides, germanide bismuthides[1] and nitride carbides.