Thanks Bruce, I will of course be honest and self critical of my findings in order to support my approach to modelling the data. I also thought I would place this on the list to see if anyone else had encountered, or seen examples re EXAFS analysis of such systems. Apologies about the double post - my email told me the first was not sent and then lost the draft. Cheers, Mark -- Mark Bondin PhD student School of Chemistry, University of Melbourne (03) 8344 7015 (Tower lab) 0409 252 983 (mobile)