Molecular Motion and Molecular Separations in Cyclophosphazene Clathrates1,2

H. R. Allcock, R. W. Allen, E. C. Bissell, L. A. Smeltz, Martha Teeter

Research output: Contribution to journalArticlepeer-review

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The molecular inclusion clathrates formed by tris(o-phenylenedioxy)cyclotriphosphazene (I), tris(2,3-naphthalenedioxy) cyclotriphosphazene (II), and tris(1,8-naphthalenedioxy)cyclotriphosphazene (III) have been examined from the viewpoint of the molecular motions of guest molecules trapped in the tunnel systems. The ease with which one guest molecule can replace another, and the results of competition for the tunnel space by two or more potential guest molecules have also been examined. Mass spectrometry, broadline 1H NMR, and single-crystal x-ray diffraction techniques were employed. A reexamination of the x-ray structure of I is described.

Original languageEnglish (US)
Pages (from-to)5120-5125
Number of pages6
JournalJournal of the American Chemical Society
Issue number17
StatePublished - Aug 1 1976

All Science Journal Classification (ASJC) codes

  • Catalysis
  • General Chemistry
  • Biochemistry
  • Colloid and Surface Chemistry


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