[Ifeffit] CuCl (final thought)

Hello again. This is my final statement (I hope) concerning CuCl! Marco, it seems to me that your data (as well as the data from the 4th reference you mention, Takaoka et al., Chemosphere, 2005) is contaminated by Cu(II). CuCl being highly sensitive to air (and to light as well), Cu(I) is quickly oxydised. The large peak between 8990 and 9000eV in the spectrum corresponds to the white line of Cu(II). And since this white line is larger than Cu(I)'s one, you obtain this too small pre-edge. Hope that can help. Thanks again. Cheers. denis 2006/10/31, ifeffit-request@millenia.cars.aps.anl.gov < ifeffit-request@millenia.cars.aps.anl.gov>:

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Today's Topics:

1. CuCl: thanks! (Denis Testemale)

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Message: 1 Date: Tue, 31 Oct 2006 09:52:29 +1030 From: "Denis Testemale" Subject: [Ifeffit] CuCl: thanks! To: ifeffit@millenia.cars.aps.anl.gov Message-ID: <4ba19e1a0610301522k7d3a1fcbyb1459cf21fc10851@mail.gmail.com> Content-Type: text/plain; charset="iso-8859-1"

Many thanks for the exhaustive and quick answers. There is still this doubt about the XANES shape, but at least I have some more references to deal with it. Cheers. denis

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When replying, please edit your Subject line so it is more specific than "Re: Contents of Ifeffit digest..."

Today's Topics:

1. CuCl(solid) spectra? (Denis Testemale) 2. Re: CuCl(solid) spectra? (Marco A. Alsina)

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Message: 1 Date: Mon, 30 Oct 2006 11:39:40 +1030 From: "Denis Testemale" Subject: [Ifeffit] CuCl(solid) spectra? To: ifeffit@millenia.cars.aps.anl.gov Message-ID: <4ba19e1a0610291709m1ae4315bx3c16d146a84fd06b@mail.gmail.com> Content-Type: text/plain; charset="iso-8859-1"

G'day!

I'm looking for a spectrum of CuCl (solid), or a reference where I can

see

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one. I'm more interested in the XANES than the EXAFS region. I've found Rumpf et al., Journal of Solid State Chemistry, 163, 158 (2002), but what puzzles me is that the spectra in the Farrel Lytle database are somewhat different with a stronger whiteline. Only the spectrum at 77K (from FL database) does not have this white line, but its poor definition does not make me feel confident. Thanks in advance. Denis

-- Denis Testemale School of Earth and Environmental Sciences, Adelaide University and South Australian Museum North Terrace 5000 Adelaide ph: +61 8 8207 7659