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Tetartohedral twinning could happen to you too
Author(s) -
Roversi Pietro,
Blanc Eric,
Johnson Steven,
Lea Susan Mary
Publication year - 2012
Publication title -
acta crystallographica section d
Language(s) - English
Resource type - Journals
ISSN - 1399-0047
DOI - 10.1107/s0907444912006737
Subject(s) - crystal twinning , triclinic crystal system , crystallography , materials science , crystal structure , chemistry , microstructure
Tetartohedral crystal twinning is discussed as a particular case of (pseudo)merohedral twinning when the number of twinned domains is four. Tetartohedrally twinned crystals often possess pseudosymmetry, with the rotational part of the pseudosymmetry operators coinciding with the twinning operators. Tetartohedrally twinned structures from the literature are reviewed and the recent structure determination of tetartohedrally twinned triclinic crystals of human complement factor I is discussed.

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