Functionalized Sugars as Ligands towards Water-Soluble [Fe-only] Hydrogenase Models

✍ Scribed by Ulf-Peter Apfel; Yvonne Halpin; Michael Gottschaldt; Helmar Görls; Johannes G. Vos; Wolfgang Weigand

• Publisher: John Wiley and Sons
• Year: 2008
• Tongue: English
• Weight: 658 KB
• Volume: 2008
• Category: Article
• ISSN: 1434-1948
• DOI: 10.1002/ejic.200800720

✦ Synopsis

Abstract

Only a small number of water‐soluble iron carbonyl type model compounds for the active centre in [Fe‐only] hydrogenase are known, and these models are mainly prepared by substitution of one of the CO ligands. In this publication we present new water‐soluble models for [Fe‐only] hydrogenase that contain a peripherally bound sugar residue. Compounds were prepared in which the 1,3‐disulfanyl‐2‐propyltetra‐O‐acetyl‐β‐D‐glucopyranoside unit is coordinated to the iron carbonyl core through either a sulfur or a selenium bridgehead atom. Electrochemical results for both types of compounds reveal hydrogen gas evolution from acetic acid and water. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008)