Chemistry and ligating properties of the 1,2,4-thiadiphosphole P2SC2Bu2t

Sarah E. D'Arbeloff-Wilson, Peter B. Hitchcock, John F. Nixon, László Nyulászi

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14 Citations (Scopus)


New synthetic routes to the 1,2,4- and 1,3,4-thiadiphospholes, P2SC2Bu2,t, are presented. Both η1-W(CO)5 and η5-M(CO)3 complexes (M = Mo, W) of the 1,2,4-thiadiphosphole ring are described and the molecular structure of the former determined by a single crystal X-ray study is in good agreement with theoretical calculations. The thermal conversion of the η1-M(CO)5 complex to the η5-M(CO)3 complex is attributable to the entropy change in the reaction. A sequence of [4 + 2] and [2 + 2 +2] cyclo-addition reactions of the 1,2,4-thiadiphosphole, P2SC2Bu2t, with the phosphaalkyne, P≡CBut, affords the tetracyclic cage compound P4SC4Bu4t which has also been structurally characterised.

Original languageEnglish
Pages (from-to)7-15
Number of pages9
JournalJournal of Organometallic Chemistry
Issue number1-2
Publication statusPublished - Aug 1 2002


  • Carbonyl complexes
  • Phosphaalkyne
  • Thiadiphosphole

ASJC Scopus subject areas

  • Biochemistry
  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

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