Electronic Resource
[S.l.]
:
International Union of Crystallography (IUCr)
Acta crystallographica
36 (1980), S. 1041-1043
ISSN:
1600-5724
Source:
Crystallography Journals Online : IUCR Backfile Archive 1948-2001
Topics:
Chemistry and Pharmacology
,
Geosciences
,
Physics
Notes:
In MX2-type structures atoms are always in a sandwich form with an M atom surrounded by two X atoms. The orientation of the M atom is always determined by the two X atoms, e.g. an M atom with γ orientation will always have two X atoms in A and B (or B and A) orientations around it. Therefore, by representing both X atoms by one M atom, the calculation can be reduced to one third of the original since the summation in the structure-factor calculation over all atoms will reduce to the summation over M atoms only. How this can be done is examined in the paper.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1107/S0567739480002100
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