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Solution of heavy atom structures from powder diffraction data using direct methods. A review of structures solved at Aarhus University

Published online by Cambridge University Press:  05 March 2012

Axel Nørlund Christensen
Axel Nørlund Christensen*
Affiliation:
Crystal Chemistry, Højkolvej 7, DK-8210 Århus V, Denmark
*
a)Electronic mail: elin.axel@stofanet.dk
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Abstract

Heavy atoms dominate the X-ray scattering from many inorganic compounds like oxides and oxalates, and often only partial structures of these compounds can be obtained by X-ray powder diffraction data. Combining information from X-ray and neutron diffraction data is an advantage. Scattering contributions from the atoms are more evenly distributed in neutron diffraction data than in X-ray diffraction data. Neutron diffraction data can then be used to complete a structure partially solved with data from an X-ray diffraction pattern. Examples of heavy atom structures solved in the time period 1983–2004 using direct methods outlined above are presented.

Keywords

direct methodsRietveld analysisX-ray diffractionneutron diffraction

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Type
Technical Articles
Information
Powder Diffraction , Volume 19 , Issue 4 , December 2004 , pp. 362 - 366
Copyright
Copyright © Cambridge University Press 2004

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