lect7_inttable

lect7_inttable - Base centering (C) x, y, z x+, y+, z...

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1 Lattice Centering & Base centering (C) ±x , y , z ± x+‰, y+‰, z &B o d y c e n t e r i n g ( I ) , y , z ± x+‰, y+‰, z+‰ & Face centering (F) , y , z ± x+‰, y+‰, z ± x+‰, y, z+‰ ± x, y+‰, z+‰ & Rhombohedral centering (R) , y , z + 1 / 3 , y+ 2 / 3 , z+ 1 / 3 + 2 / 3 , y+ 1 / 3 , z+ 2 / 3 Glide Planes in 3D &a - g l i d e ±T r a n s l a t e b y a &b - g l i d e r a n s l a t e b y b &c - g l i d e r a n s l a t e b y c &n - g l i d e ( to a ) r a n s l a t e b y b + ‰ c - g l i d e ( to b ) r a n s l a t e b y a + ‰ c - g l i d e ( to c ) r a n s l a t e b y a + ‰ b &d - g l i d e r a n s l a t e b y a +… b +… c The glide translation must always be parallel to the glide plane. International Tables for Crystallography ± Volume A Entry for Space Group P2 1 /c (#14) Page 1 Page 1 Page 2 Page 2
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2 Herman- Mauguin Space Group Symbols (Short & Long) Schoenflies Space Group Crystal System Point Group c a a c b b 2 1 Screw Axis Inversion Center c-glide plane Glide translation in the plane of the projection Glide translation perpendicular to the plane of the projection P 1 2 P 1 2 1 /c 1 /c 1 Axes parallel to or planes perpendicular to the b-axis
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This note was uploaded on 06/11/2011 for the course CHEM 101 taught by Professor Stegemiller during the Spring '07 term at Ohio State.

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lect7_inttable - Base centering (C) x, y, z x+, y+, z...

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