Synthesis and solution- and solid-state characterization of gold(I) rings with short Au⋯Au interactions. Spontaneous resolution of a gold(I) complex

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Abstract

We report the synthesis and solution- and solid-state characterization of gold(I) rings with short 1,9-transannular Au⋯Au interactions. The 9- and 16-membered gold(I) rings were prepared by reacting 9,9-dimethyl-4,5-bis(diphenylphosphino)-xanthene and (Me2S)AuCl in the presence of AgNO3 in the molar ratio of 1:0.5:1 and 1:1:1, respectively. X-ray crystallographic measurements in conjunction with solution X-ray diffraction and NMR methods have been used to determine the structure of gold(I) rings, and we also gained insight into the dynamics. The nine-membered gold(I) ring is chiral, and the crystal contains only one of the two enantiomers, either right- or left-handed. To the best of our knowledge this represents the first example of crystallization-induced spontaneous resolution of a binuclear gold(I) cycle. The 16-membered ring with 1,9-transannular Au⋯Au interaction is in a figure-eight conformation.

Original languageEnglish
Pages (from-to)12668-12670
Number of pages3
JournalJournal of the American Chemical Society
Volume128
Issue number39
DOIs
Publication statusPublished - Oct 4 2006

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

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