Proton-coupled electron transfer from sulfur: A S-H/S-D kinetic isotope effect of ≥ 31.1

Takumi Konno, Yu Chikamoto, Ken Ichi Okamoto, Tadashi Yamaguchi, Tasuku Ito, Masakazu Hirotsu

Research output: Contribution to journalArticle

37 Citations (Scopus)


Not bound to a metal and yet still involved in proton-coupled electron transfer - this is the distinguishing property of the sulfur center of the complex [Os(IV)(tpy)(Cl)2{NS(H)C6H3Me2}]+ (1, tpy = terpyridine). In fact 1 also provides the first example of proton-coupled electron transfer involving a sulfur atom. This reaction is notable for the large magnitude of the kinetic isotope effect.

Original languageEnglish
Pages (from-to)4101-4104
Number of pages4
JournalAngewandte Chemie - International Edition
Issue number22
Publication statusPublished - 2000 Nov 17



  • Isotope effects
  • Kinetics
  • Osmium
  • Reductions
  • S ligands

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

Cite this