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J. A. Gavira Gallardo
Laboratorio de Estudios Cristalograficos
I.A.C.T CSIC-UGRA.
Facultad de Ciencias. Granada 18002. Spain
Fax: +34-958-243384; Phone: +34-958-243360
email: [EMAIL PROTECTED]
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At 12:00 PM 2/19/99 -0500, you wrote:
>Dear All,
>
>I have a problem with the structural data for Ranitidine Hydrochloride
>(C13H23N4O3S-Cl), a pharmaceutical drug material. It is well known that it
>appears in two polymorphous: Form 1 and Form 2. Only the former one has
>therapeutic features. The
Dr Phil Hastings wrote :
>During validation it solved around 50 structures, up to 18 degrees of
>freedom. Although I wouldn't like to say that it could solve every problem,
>it does seem to be widely applicable. The software was released at the end
>of 1998 as a commercial product, fully integrat
I am working on amorphous silicon oxycarbide,
typically Si Cx O2(1-x), and the changes in composition and structure occuring
under heat treatment i.e. pyrolysis from 1000°C to 1500°C. I use
Rietveld method for structural refinement and quantitative analysis. This work
is a part of a Europea
There are 73 reports on Ba titanate in the ICSD. Cif files are sent
separately.
Oscar
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# Oscar Au-AlvarezFax: (53-226) 32689 #
# X-Ray Laboratory Phone: (53-226) 32263 #
# Chemistry Dept.,
