Acta Cryst. (2013). E69, o994-o995
[ doi:10.1107/S1600536813014220 ]
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-HO hydrogen bonds link the molecules related by translation along the a axis into chains. C-H interactions aggregate these chains into layers parallel to the ab plane.
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