Abstract

SIR 88 is an integrated package of computer programs for the solution of crystal structures. The package is based on the estimation of one- and two-phase structure seminvariants and three- and four-phase structure invariants according to the theory of representations [Giacovazzo (1977). Acta Cryst. A 33 , 933–944; (1980). Acta Cryst. A 36 , 362–372]. The program works in all the space groups and in most cases it is able to provide the correct solution without user intervention. Some prior information like the availability of a partial structure or of pseudotranslational symmetry is easily exploited to obtain the structure solution.

Keywords

Crystal structureSymmetry (geometry)Computer scienceComputer programPhase (matter)Space (punctuation)AlgorithmCrystallographyMathematicsGeometryPhysicsChemistryProgramming languageQuantum mechanics

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Publication Info

Year
1989
Type
article
Volume
22
Issue
4
Pages
389-393
Citations
789
Access
Closed

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M. C. Burla, M. Camalli, G. Cascarano et al. (1989). <i>SIR</i>88 – a direct-methods program for the automatic solution of crystal structures. Journal of Applied Crystallography , 22 (4) , 389-393. https://doi.org/10.1107/s0021889889004103

Identifiers

DOI
10.1107/s0021889889004103