Re: [Ifeffit] Question about EXAFS fitting of mixtures

2023-05-17 Thread Soyoung Kim
Thank you for the replies. That's what I thought too. And good point, XANES will be different for the two scenarios and it would not matter whether the analysis is by LCA. (For the cat riddle, is it four cats in a circle with each cat in each corner of a very small room? Not sure if I'm getting the

Re: [Ifeffit] Question about EXAFS fitting of mixtures

2023-05-15 Thread Anatoly Frenkel
That question reminds me of a Russian riddle: In each corner of a room there is a cat. In the eyes of each cat there are three cats. On the tail of each cat there is a cat. How many cats are there? Anatoly > On May 15, 2023, at 7:09 PM, Soyoung Kim wrote: > >  > Dear all, > > While fitting E

[Ifeffit] Question about EXAFS fitting of mixtures

2023-05-15 Thread Soyoung Kim
Dear all, While fitting EXAFS for tiny Pt nanoparticles, a simple question occurred to me. For these two scenarios: 1. All Pt atoms are coordinated to 3 O atoms and 3 Pt atoms each. 2. Half of the Pt atoms are coordinated to 6 O atoms and half to 6 Pt atoms. If we fit only single-scattering paths