Affiliation: | 1. Liverpool Centre for Materials and Catalysis, Department of Chemistry, University of Liverpool, Liverpool L69 7ZD (UK), Fax: (+44)?151‐794‐3589 http://pcwww.liv.ac.uk/~jxiao;2. Chemical R & D, Global Research & Development, Pfizer, Sandwich, Kent CT13 9NJ (UK) |