ISSN:
1600-5724
Source:
Crystallography Journals Online : IUCR Backfile Archive 1948-2001
Topics:
Chemistry and Pharmacology
,
Geosciences
,
Physics
Notes:
In order to establish a generalized form of an earlier derived algebraic relation between a structure factor, triple products and a single Patterson vector U, the joint probability distribution P(X0, X1, M) of Ek, Eh + k and cos 2π(h/2 + k). U with h fixed, is derived for space group P{\bar 1}. From this distribution the desired generalized equations are obtained. The sign probability formula for triple products is adapted to the case that cos 2π(h/2 + k). U is known. A numerical check on the expression for the conditional average (cos 2πh/2 + k). U||Ek| 〉 t, |Eh + k 〉 t )k, showed that for an artificial structure the set of signs of the structure factors obtained from this expression was better than that calculated from heavy-atom positions related by U.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1107/S0567739475001581
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