A new route to the phosphazene polymerization precursors, Cl3P=NSiMe3 and (NPCl2)3

Harry R. Allcock, Chester A. Crane, Christopher T. Morrissey, Michael A. Olshavsky

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28 Scopus citations


An improved synthesis of the phosphazene polymerization precursors, hexachlorocyclotriphosphazene, (NPCl2)3 (1), and Cl3P=NSiMe3 (2) is reported. The addition of PCl5 to N(SiMe3)3 in methylene chloride at 40 °C produced a mixture of phosphazenes which contained 76% of 1. However, the addition of N(SiMe3)3 to PCl5 in methylene chloride at 0 °C, followed by the addition of hexane, provided 2 in 40% yield. The mechanism of the reaction is discussed.

Original languageEnglish (US)
Pages (from-to)280-283
Number of pages4
JournalInorganic chemistry
Issue number2
StatePublished - Dec 1 1999

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry


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