Membrane-organized Chemical Photoredox Systems (DE-FG03-99ER14943)
EMSL Project ID
9290
Abstract
The proposed research is part of an ongoing DOE-funded project bearing the above title, one aspect of which is directed at developing catalytic systems for water oxidation. Recent research in our laboratory on reactions catalyzed by dimeric ruthenium bipyridine-based complexes has led to identification of two discrete reaction pathways, both of which appear to involve transitory "covalent hydrates". An epr-detectable intermediate has been trapped at low temperatures, whose identification could be crucial to characterization of the reaction mechanism. I propose to undertake with Dr. Michael Bowman advanced epr studies to identify the reaction intermediate--specifically, this species has the attributes of a ligand radical-based intermediate. Use of pulsed EPR and ENDOR techniques in Dr. Bowman's laboratory should allow its structural identification.
Project Details
Project type
Capability Research
Start Date
2004-06-14
End Date
2006-12-28
Status
Closed
Released Data Link
Team
Principal Investigator