19 overheads Space groups - P1(2) Rohrer,pg110 P1(2) 1. 2....

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P1 (2) Rohrer, pg 110
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P1 (2) 1. Inversion centers through the origin, body center, and centers of the edges 2. General equivalent positions found by operating symmetry elements on a general point x,y,z, example: point 2 is generated from point 1 through inversion 3. ” negative for z coordinate . “ ” is left anded replica 4. , is left handed replica 5. Only equivalent positions in the same unit cell are listed–there are two here, point 1 at x,y,z and point 2 at – x, y, z 6. translate point 2 into the cell boundaries by applying a translation vector, arrive at 1 x,1 y,1 z. Convention to write this is (x, y, z) so the two equivalent positions are (x,y,z) and (x, y, z) Rohrer, pg 110 7. Special positions are on the symmetry elements, all the locations of the inversion centers (0,0,0) (½,0,0) (0,0, ½), (½, ½, ½), (0, ½, ½) (½,0, ½) (½, ½,0)
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C2 (5) General positions 1( x , y , z ) 2( x,y, z)
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This note was uploaded on 03/15/2010 for the course MSE 2060 taught by Professor Liddell during the Spring '09 term at Cornell University (Engineering School).

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19 overheads Space groups - P1(2) Rohrer,pg110 P1(2) 1. 2....

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