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Title: Membrane-organized Chemical Photoredox Systems

The key photoredox process in photosynthesis is the accumulation of oxidizing equivalents on a tetranuclear manganese cluster that then liberates electrons and protons from water and forms oxygen gas. Our primary goal in this project is to characterize inorganic systems that can perform this same water-splitting chemistry. One such species is the dinuclear ruthenium complex known as the blue dimer. Starting at the Ru(III,III) oxidation state, the blue dimer is oxidized up to a putative Ru(V,V) level prior to O-O bond formation. We employ electron paramagnetic resonance spectroscopy to characterize each step in this reaction cycle to gain insight into the molecular mechanism of water oxidation.
Authors:
 [1]
  1. Univ. of California, Davis, CA (United States)
Publication Date:
OSTI Identifier:
1315212
Report Number(s):
DE--SC0004334
DOE Contract Number:
SC0004334
Resource Type:
Technical Report
Research Org:
Univ. of California, Davis, CA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY