Işiklan M.Sonkaya O.Hökelek T.2020-06-252020-06-25201316005368https://doi.org/10.1107/S1600536813012348https://hdl.handle.net/20.500.12587/2314The title compound, C17H14Cl4N 5OP3, 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 ?-? 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?? interactions are also observed. These interactions link the molecules into a three-dimensional supramolecular network. © Işiklan et al. 2013.eninfo:eu-repo/semantics/openAccessArticle696o861o86210.1107/S16005368130123482-s2.0-8487872077423795044N/AWOS:000421603800083N/A