Kristallographische Konsequenzen von Pseudosymmetrie in Kristallstrukturen
2000 ◽
Vol 215
(3)
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Keyword(s):
The term pseudo-symmetry means a spatial arrangement that feigns a symmetry without fulfilling it. In crystal structures pseudo-symmetry is a more common feature than often recognized. In case of small deviations a variety of phenomena results: polytypism and stacking faults, disorder and twinning, commensurate and incommensurate super-structures, phase transitions and unusual reflection conditions. Most of these effects complicate crystal structure determination considerably. A series of examples with focus on the new class of ternary bismuth subhalides illustrates the different crystallographic consequences of pseudo-symmetry in crystal structures.
2008 ◽
Vol 53
(5)
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pp. 785-793
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2020 ◽
Vol 76
(3)
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pp. 322-335
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1997 ◽
Vol 212
(8)
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2009 ◽
Vol 64
(8)
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pp. 985-988
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2017 ◽
Vol 41
(4)
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pp. 235-238
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2001 ◽
pp. 181-185
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