publication . Article . 2008

pH-Dependent isotope exchange and hydrogenation catalysed by water-soluble NiRu complexes as functional models for [NiFe]hydrogenases

Kure, Bunsho; Matsumoto, Takahiro; Ichikawa, Koji; Fukuzumi, Shunichi; Higuchi, Yoshiki; Yagi, Tatsuhiko; Ogo, Seiji;
Open Access English
  • Published: 21 Sep 2008 Journal: Dalton transactions, volume 35, pages 4,747-4,755 (issn: 1477-9226, Copyright policy)
  • Publisher: Royal Society of Chemistry
Abstract
The pH-dependent hydrogen isotope exchange reaction between gaseous isotopes and medium isotopes and hydrogenation of the carbonyl compounds have been investigated with water-soluble bis(mu-thiolate)(mu-hydride)NiRu complexes, Ni(II)(mu-SR)(2)(mu-H)Ru(II) {(mu-SR)(2) = N,N'-dimethyl-N,N'-bis(2-mercaptoethyl)-1,3-propanediamine}, as functional models for [NiFe]hydrogenases. In acidic media (at pH 4-6), the mu-H ligand of the Ni(II)(mu-SR)(2)(mu-H)Ru(II) complexes has H(+) properties, and the complexes catalyse the hydrogen isotope exchange reaction between gaseous isotopes and medium isotopes. A mechanism of the hydrogen isotope exchange reaction between gaseous ...
Subjects
free text keywords: Catalysis, Hydrogen-Ion Concentration, Hydrogenase, Hydrogenation, Isotopes, Models, Biological, Models, Chemical, Nickel, Organometallic Compounds, Protons, Ruthenium, Solubility, Water
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Article . 2008
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