Symmetry

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SYMMETRY ELEMENTS (“Operators”): •Used to describe the motif’s movement • Geometric operations that change the position of a motif, but NOT its size or shape SYMMETRY OPERATION •Application of a symmetry element Note: Some people have lots of trouble visualizing symmetry & understanding crystallography. The best way to get a grip on this material is to spend some time in the lab and looking at the CDROM that came with your textbook…
There are 4 Groups of <strong>Symmetry</strong> Elements (1) Mirror plane (symmetry element “m”) = Reflection (symmetry operation): = move an object perpendicular to an imaginary plane and flip it (change the “handedness”) m m=mirror plane
Page 1: Lecture 2: Symmetry, Translation-Fr
Page 5 and 6: There are 4 Groups of Symmetry Elem
Page 7 and 8: (2) Proper Rotation Axis (symmetry
Page 9 and 10: (3) Inversion Center (symmetry elem
Page 11 and 12: (3) Rotoinversion Axis (symmetry el
Page 13: (3) Rotoinversion Center (symmetry

Symmetry

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