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Average-valence dicopper: metal bonding in biology

Reference	B09531
Principal Investigator / Supervisor	Dr John Nelson
Co-Investigators / Co-Supervisors	Professor John J. McGarvey
Institution	Queen's University of Belfast
Department	Sch of Chemistry and Chemical Eng
Funding type	Research
Value (£)	159,736
Status	Completed
Type	Research Grant
Start date	01/10/1998
End date	22/04/2002
Duration	43 months

Abstract

It is proposed to synthesise and characterise, by resonance Raman, ESR, electronic absorption and other spectroscopies a range of average-valence dicopper systems contained within azacryptand and macrocyclic hosts, in the presence and absence of thiolate bridges. This will assist establishment of spectroscopic criteria for presence of average-valence Cu2(1.5) systems in biology. It will also enable investigation of electron transfer properties of average- or near-average- valence dicopper electrochemically and via electron self exchange measurements to assess the contribution of thiolate-bridging and metal-metal bonding to electron-transfer rates. Understanding of the geometric and electronic factors governing average-valence behaviour and its consequences for electron transfer will be one outcome of the work, as will be the synthesis of a range of redox reagents tunable both in redox potential and rate of electron transfer.

Summary

unavailable

Committee	Closed Committee - Biomolecular Sciences (BMS)
Research Topics	X – not assigned to a current Research Topic
Research Priority	X – Research Priority information not available
Research Initiative	X - not in an Initiative
Funding Scheme	X – not Funded via a specific Funding Scheme

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