4,4,6,6‐Tetra­chloro‐2,2‐(propyl­ene­dioxy­di‐o‐phenyl­enedi­imino)‐2λ5,4λ5,6λ5‐cyclotriphosphazene

The title compound, C₁₅H₁₆Cl₄N₅O₂P₃, is a cyclo­phosphazenic lariat (PNP‐pivot) ether with a spiro‐cyclic 12‐membered macrocyclic ligand containing two ether O and two N atoms; the phosphazene ring is nearly planar. In the macrocyclic ring, there is a four‐center (trifurcate) N—H⋯O/N—H⋯N hydrogen bond. The relative inner‐hole size of the macrocycle is estimated as approximately 0.95 Å.