[Ifeffit] Query: abnormal FT-EXAFS peak at ~1.1A

[Huaming]

Hello!
I faced an issue with fitting of FT-EXAFS data (Rh at zeolite) with Artemis. There is one  distinct peak located at ~1.1 angstron. The intensity is comparable to the nearby peak of Rh-O scattering. I wonder the peak (~1.1A) is a real peak or just noise.  Raw data is enclosed. Another question is why S02 can be negative in data fitting with Artemis.


Cheers,


Huaming



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