Christoph Topf, Uwe Monkowius, Hrg. Günther Knör,
"Design, Synthesis and Characterization of a Modular Bridging Ligand Platform for Bio-inspired Hydrogen Production"
, in Inorganic Chemistry Communications, Vol. 21, Seite(n) 147-150, 6-2012, ISSN: 1879-0259
Original Titel:
Design, Synthesis and Characterization of a Modular Bridging Ligand Platform for Bio-inspired Hydrogen Production
Sprache des Titels:
Englisch
Original Kurzfassung:
Synthesis and characterization of a novel type of ambident bridging ligands joining together the functional
prerequisites for visible-light absorption, photoinduced electron transfer and catalytic proton reduction is
presented. This class of compounds consists of a chromophoric 1,2-diimine-based ?-acceptor site and a rigid
polyaromatic dithiolate chelator. Due to the presence of a common conjugated linker moiety with an intrinsic
two-electron redox reactivity and a suitable orbital coupling of the subunits, a favourable situation for
vectorial multielectron transfer from attached electron donors to a catalytic acceptor site is provided. As an
example for the application of this kind of bifunctional ligand systems, a [FeFe]-hydrogenase enzyme model
compound is prepared and structurally characterized. Electrocatalytic hydrogen formation with this complex
is demonstrated.