St John's College Oxford
Professor Fraser Armstrong

Professor Fraser Armstrong F.R.S.

Tutorial Fellow in Inorganic Chemistry Fellow for Research

Subjects

Biography

Professor Armstrong tutors Inorganic Chemistry and lectures in the Inorganic Chemistry Laboratory.

Research Interests

Professor Armstrong leads a research group concerned with mechanistic and exploratory Bioinorganic Chemistry. The principal aims are to understand the chemical reactions carried out by the active sites of metalloproteins (a well-known example would be the Fe-porphyrin group as occurs in haemoglobin) and to elucidate how long-range electron transfer in complex protein systems is coupled to catalysis and ion/proton transfer.

Subjects range from the properties of unstable Fe-S clusters and Fe(IV)=O (to most chemists an unusual oxidation state) to medically important respiratory chain electron transport enzymes such as succinate dehydrogenase. To study these systems, his group uses a range of kinetic techniques, and is currently developing a powerful new method in which the chemistry of metalloprotein active sites is probed electrochemically while they are absorbed on a carbon electrode surface.