Dear Stephen,

years ago I wrote a program suite to determine symmetry from 
observed intensities. It needs single crystal data and is not fully 
automatic, i.e. it doesn't give you a list of sp gr but it calculates a 
reliability index for symmetry elements and sp gr you want to check.

best

miguel


On 5 Nov 2008 at 15:56, [EMAIL PROTECTED] wrote:

> Dear all,
> 
> Recently, I have refined the structure using powder data. In each 
> asymmetric unit of Pmc21, there are two chemically similar but 
> crystallographically different complexes. The center of these two 
> complexes is rougly around 0,0,0.75. Therefore, the true space group 
> may not be Pmc21. I am glad to know if there is a software to detect 
> symmetry and suggest probable space group.
> 
> Thank you very much.
> 
> best regards
> stephen
> 
> 

-- 
Miguel Gregorkiewitz
Dip Scienze della Terra, Università
via Laterina 8, I-53100 Siena, Europe
fon +39'0577'233810 fax 233938
email [EMAIL PROTECTED]




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