ISSN:
1600-5724
Source:
Crystallography Journals Online : IUCR Backfile Archive 1948-2001
Topics:
Chemistry and Pharmacology
,
Geosciences
,
Physics
Notes:
Based on the magnitude of intensities obtained by X-ray diffraction, the reflexions of MoO2Cl2. H2O can be divided into so-called main reflexions (strong intensities) and so-called superstructure reflexions (weak intensities). A comparison of the structure determined with the main reflexions only (designated as structure A) and of the structure determined with the superstructure reflexions only (designated as structure B) shows that structure A is not the superposition or average structure of structure B, but that structures A and B are polytypes. This means that the basic structure element, the coordination polyhedron of the Mo atoms, being an irregular octahedron, is very similar in both structures. The octahedra are however combined with each other in different ways in the two structures.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1107/S0567739473000902
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