volume 14 issue 6 pages 357-361

Unit-cell refinement from powder diffraction scans

G.S. PAWLEY
Publication typeJournal Article
Publication date1981-12-01
scimago Q1
wos Q1
SJR1.183
CiteScore8.5
Impact factor2.8
ISSN00218898, 16005767
General Biochemistry, Genetics and Molecular Biology
Abstract

A procedure for the refinement of the crystal unit cell from a powder diffraction scan is presented. In this procedure knowledge of the crystal structure is not required, and at the end of the refinement a list of indexed intensities is produced. This list may well be usable as the starting point for the application of direct methods. The problems of least-squares ill-conditioning due to overlapping reflections are overcome by constraints. An example, using decafluorocyclohexene, C6F10, shows the quality of fit obtained in a case which may even be a false minimum. The method should become more relevant as powder scans of improved resolution become available, through the use of pulsed neutron sources.

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GOST |
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GOST Copy
PAWLEY G. Unit-cell refinement from powder diffraction scans // Journal of Applied Crystallography. 1981. Vol. 14. No. 6. pp. 357-361.
GOST all authors (up to 50) Copy
PAWLEY G. Unit-cell refinement from powder diffraction scans // Journal of Applied Crystallography. 1981. Vol. 14. No. 6. pp. 357-361.
RIS |
Cite this
RIS Copy
TY - JOUR
DO - 10.1107/S0021889881009618
UR - https://doi.org/10.1107/S0021889881009618
TI - Unit-cell refinement from powder diffraction scans
T2 - Journal of Applied Crystallography
AU - PAWLEY, G.S.
PY - 1981
DA - 1981/12/01
PB - International Union of Crystallography (IUCr)
SP - 357-361
IS - 6
VL - 14
SN - 0021-8898
SN - 1600-5767
ER -
BibTex |
Cite this
BibTex (up to 50 authors) Copy
@article{1981_PAWLEY,
author = {G.S. PAWLEY},
title = {Unit-cell refinement from powder diffraction scans},
journal = {Journal of Applied Crystallography},
year = {1981},
volume = {14},
publisher = {International Union of Crystallography (IUCr)},
month = {dec},
url = {https://doi.org/10.1107/S0021889881009618},
number = {6},
pages = {357--361},
doi = {10.1107/S0021889881009618}
}
MLA
Cite this
MLA Copy
PAWLEY, G.S.. “Unit-cell refinement from powder diffraction scans.” Journal of Applied Crystallography, vol. 14, no. 6, Dec. 1981, pp. 357-361. https://doi.org/10.1107/S0021889881009618.