Synthesis and inclusion behavior of cyclotriphosphazene molecules with asymmetric spiro rings

David K.Y. Lee, Anne Martine S. Jackson, Toshiki Fushimi, Hemant P. Yennawar, Harry R. Allcock

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

Two novel cyclic phosphazenes with asymmetric spiro rings were synthesized via reactions of hexachlorocyclotriphosphazene with chiral amino alcohol residues. The reactions showed preferential formation of the cis isomer possibly due to the delocalization of the lone pair electrons of the spirocylic nitrogen, which reduces its ability to solvate protons. Crystals of these phosphazenes were analyzed by X-ray crystallography which confirmed the formation of cis isomers and showed their ability to include guest molecules within the crystal lattices. The selective inclusion of epoxides by one of the phosphazenes was an effective method for the separation of thermally sensitive guest molecules.

Original languageEnglish (US)
Pages (from-to)5341-5348
Number of pages8
JournalDalton Transactions
Volume39
Issue number22
DOIs
StatePublished - Jun 18 2010

All Science Journal Classification (ASJC) codes

  • Inorganic Chemistry

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