4,4,6,6-Tetrachloro-2,2-(ethylene-dioxydi-o-phenylenediimino) -2λ5 ,4λ5 ,6λ5- cyclotriphosphazene
Acta Crystallographica Section C: Crystal Structure Communications, vol.60, no.7, 2004 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 60 Issue: 7
- Publication Date: 2004
- Doi Number: 10.1107/s0108270104010169
- Journal Name: Acta Crystallographica Section C: Crystal Structure Communications
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Ankara University Affiliated: Yes
Abstract
The title ligand, C14H14Cl4N 5O2P3, is a cyclophosphazene lariat (PNP pivot) ether with a spiro-cyclic 11-membered macrocyclic ring containing two ether O and two N atoms; the phosphazene ring is nearly planar. The macrocyclic ring contains a four-centred (trifurcate) N - H⋯O/N - H⋯N hydrogen bond, and the relative inner-hole size of the macrocycle is ∼1.14 Å in radius. The molecules are linked about inversion centres by N - H⋯N hydrogen bonds into centrosymmetric dimers.