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Acta Cryst. (2013). E69, o861-o862
[ doi:10.1107/S1600536813012348 ]

4',4',6',6'-Tetrachloro-2-(6-methylpyridin-2-yl)-1H,2H-spiro[naphtho[1,2-e][1,3,2]oxazaphosphinine-3,2'-[1,3,5,2,4,6]triazatriphosphinine]

M. Isiklan, Ö. Sonkaya and T. Hökelek

Abstract: The title compound, C17H14Cl4N5OP3, is a spiro-phosphazene derivative with bulky naphthalene and pyridine rings. The phosphazene and the six-membered N/O rings are in flattened-boat and twisted-boat conformations, respectively. The naphthalene ring system and the pyridine ring are oriented at a dihedral angle of 18.06 (8)°. In the crystal, weak [pi]-[pi] stacking between the pyridine rings and between the pyridine rings and the naphthalene ring system [centroid-centroid distances = 3.594 (2) and 3.961 (2) Å, respectively] occur. Weak C-H...[pi] interactions are also observed. These interactions link the molecules into a three-dimensional supramolecular network.


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