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Crystal Systems and Space Groups - McMaster University
Combines rotation and translation Designated as n m (e.g. 2 1, 4 1, 3 2, 4 3) Rotation as 360º/n Symmetry element of the first kind Translation as m/n of a unit cell (n > m) Orientation of the screw axis given by its place in the H-M symbol Causes systematic absences in axial (h00,0k0,00l) reflections Certain pairs of screw axes
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Stains for Developing TLC Plates - …
www.chemistry.mcmaster.ca• Thin-Layer Chromatography 2nd ed. E. Stahl, Springer-Verlag, New York, NY, 1969. • Thin-Layer Chromatography Reagents and Detection Methods, Vol. 1a: ...
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Mathematics: applications and interpretation formula booklet
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