[Ifeffit] Vanadium pre edge peak contributes to K-space?
patridge at buffalo.edu
Tue Aug 25 10:02:26 CDT 2009
After calibration, alignment and merging V K edge data, there seems to
be a large peak in R space below 1 A. From most examples and readings,
this would seem to be noise since atoms do not reside that close to each
other. Adding a background addresses this noise but then the number of
variables becomes too large and meaningless to the first shell R space
range. I believe the problem lies with the large pre edge feature seen
with high valence state Vanadium compounds. Any suggestions on how to
work through this and make realistic EXAFS analysis on these compounds.
Christopher J. Patridge
SUNY Buffalo - Dept of Chemistry
716-645-6800 x 2110
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