2-(4-Methyl­Pyridin-2-Yl)-4′,4′,6′,6′-Tetra­Kis­(Pyrrolidin-1-Yl)-1H,2H-Spiro­[Naphtho­[1,2-E][1,3,2]Oxaza­Phosphinine-3,2′-[1,3,5,2,4,6]Tri­Aza­Triphosphinine]

Abstract

In the title spiro-phosphazene derivative, C33H46N9OP3, the phosphazene and six-membered N/O rings are in flattened chair and twisted-boat conformations, respectively. The naphthalene ring system and the pyridine ring are oriented at a dihedral angle of 41.82 (4)°. In the crystal, weak C—H⋯O hydrogen bonds link the mol­ecules related by translation along the a axis into chains. C—H⋯π inter­actions aggregate these chains into layers parallel to the ab plane.