Thank you very much Miguel,
But it doesn't help, because my samples are ionic and the boron has 
-1 or -2 ionic state, while in the atmdata.dat file for GSAS there 
are only x-ray scattering factors values for B.

Dr. Stefano Agrestini

"La Sapienza" University of Rome
Physics Department

>On 5 Sep 01, at 10:43, stefano agrestini wrote:
>
>>  Dear all,
>  > Could anyone give me the x-ray scattering factors values for B-1 ? Is
>>  fundamental for the Rietveld analysis of my x-ray powder diffraction
>>  data.
>>  Thank you very much
>  >
>  > Dr. Stefano Agrestini
>  >
>>
>  > "La Sapienza" University of Rome
>  > Physics Department
>  > e-mail : [EMAIL PROTECTED]
>
>the International Tables for Crystallography Vol 3 (1962) Kynoch
>Press give X-ray scatt factors for boron(1+).
>this helps?
>
>Miguel Gregorkiewitz
>Dip Scienze Terra, Universit�
>via Laterina 8, I-53100 Siena, Europe
>fon +39'0577'233810 fax 233938
>e-mail [EMAIL PROTECTED]

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