7,11-(Butane-1,4-diyldioxydi-o-phenyl­enedimethyl­ene)-6,6-dichloro-4,4-bis­(pyrrolidin-1-yl)-2λ⁵,4λ⁵,6λ⁵-triphosphaza-1,3,5,7,11-penta­aza­spiro­[5.5]undeca-1,3,5-triene

The title compound, C₂₉H₄₂Cl₂N₇O₂P₃, is a phosphazene derivative with a bulky substituent attached through a spiro junction with two pyrrolidine rings. The six-membered C₃N₂P ring has a chair conformation, while the phosphazene ring has a slight envelope conformation. The two N atoms in the C₃N₂P ring are likely to be stereogenic.