{CH(SiMe3)P(Ph)2=NSiMe3} -(NPC-H), was then used to complex tin(II) and lead(II), and [Li(NPC-H)] was reacted with benzonitrile to yield the insertion product [Li{N(SiMe3)C(Ph)CHP(Ph)2=NSiMe3}]. Recently, we have reported the use of NPC-H and the more sterically demanding TBDMS NPC-H for the preparation of alkali metal complexes, including several separate ion pair derivatives. Despite the rich AE and RE methanide chemistry, the NPC-H ligand has never been used with these metals. In this work, we develop further the chemistry of this methanide ligand and report on the preparation of AE and RE(II) bis-methanide complexes, and RE(III) tris-methanide complexes, together with their applications as protonolysis reagents.