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4,4,6,6-Tetrachloro-2,2-(2,2-dimethylpropane-1,3-diyldioxy)-1,3,5,2λ5,4λ5,6λ5-triazatriphosphorine (2001)

Satish Kumar, N. ; Kumara Swamy, K. C.

Oxford [u.a.] : International Union of Crystallography (IUCr)

Acta crystallographica 57 (2001), S. 1421-1422

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ISSN: 1600-5759

Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001

Topics: Chemistry and Pharmacology , Geosciences , Physics

Notes: The title spirocyclic compound (alternative name: 2,2,4,4-tetrachloro-9,9-dimethyl-7,11-dioxa-1,3,5-triaza-2λ5,4λ5,6λ5-triphosphaspiro[5.5]undeca-1,3,5-triene), C5H10Cl4N3O2P3, does not contain alternating long–short P—N bond lengths in the phosphazene ring [P—N 1.559 (2)–1.596 (2) Å], as are observed in other analogous spirocyclic compounds. The six-membered phosphazene ring has a chair conformation in the solid state, but a conformational equilibrium in solution is indicated by NMR spectroscopy.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1107/S0108270101015359

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