Water-soluble analogs of [RuCl3(NO)(PPh3) 2] and their catalytic activity in the hydrogenation of carbon dioxide and bicarbonate in aqueous solution

Ágnes Kathó, Zsuzsanna Opre, Gábor Laurenczy, Ferenc Joó

Research output: Contribution to journalArticle

45 Citations (Scopus)

Abstract

The new water-soluble ruthenium-nitrosyl complexes [RuCl 3(NO)(TPPMS)2] and [RuCl3(NO)(TPPTS) 2] were synthetized and characterized by IR, 1H and 31P NMR spectroscopies. The NO stretching frequencies, v NO = 1870 cm-1 (TPPMS) and 1883 cm-1 (TPPTS) suggest a linear Ru-N-O arrangements. Reactions with OH- yield the corresponding [RuCl3(NO2)(P)2] derivatives, furthermore, [RuH(NO)(P)3] is formed with TPPMS or TPPTS, respectively, under 100 bar H2 pressure. The new complexes are suitable precatalysts for the hydrogenation of carbon dioxide and/or bicarbonate in aqueous solutions up to a tumover frequency of 400 h -1 under relatively mild conditions (30 bar H2, 70 °C).

Original languageEnglish
Pages (from-to)143-148
Number of pages6
JournalJournal of Molecular Catalysis A: Chemical
Volume204-205
DOIs
Publication statusPublished - Sep 15 2003

    Fingerprint

Keywords

  • Carbon dioxide
  • Hydrogenation
  • Nitrosyl complexes
  • Ruthenium
  • Water-soluble

ASJC Scopus subject areas

  • Catalysis
  • Process Chemistry and Technology
  • Physical and Theoretical Chemistry

Cite this