2,4-Bis[bis(diisopropylamino)phosphanyl]-1,2,3,4-tetraphosphabicyclo[1.1.0]butane

The title compound, C24H56N4P6 or (iPr2N)2P–P4–P(NiPr2)2, adopts a butterfly structure, with planar environments for the N atoms and pyramidal environments for the P atoms. The structure studied has a 15% twin component that is related by a twofold rotation about [100].