reviewsheetMidterm2 - SymmetryII a Spacegroups i Operators...

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Symmetry II a) Space groups i. Operators Diffraction theory a) Bragg b) Laue’s equations ii. Notations iii. Reading space group  diagrams iv. Wyckoff positions v. General & equivalent  positions b) Crystallographic  zones c) Stereographic projections i. Wulff net ii. Laue diffraction c) Laue cones d) (don’t forget Interplanar spacing) e) Bragg’s in vector form f) Scattering vector g) Ewald sphere, Limiting sphere h) Wave equations for diffraction Experimental methods for x ray  diffraction a) Laue Experimental methods a) Methods to study structures i. Wavelength of accelerated  particles ii. Summary of methods b) X rays i. How x rays are produced ii. Bremstrahlung iii. Characteristic b) Rotating crystal c) Powder Diffraction intensities a) Scattering by an electron i. General scattering intensity  equation ii. Scattering of randomly polarized
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Unformatted text preview: radiation b) Scattering by an atom ii b) b) ‐ iv. Short wavelength limit c) Scattering by a unit cell & structure factors v. K, L, M lines vi. α, β , and 1, 2, 3, etc notations vii. Absorption 1. Absorption edge 2. Linear 3. Mass abs coef 4. Filters d) XRD in organics. Compton effect CHESS synchrotron methods a) What we learned during the Week of April 12 th , CHESS fieldtrip visit and class lecture All notes/handouts, labs, and in class ‐ examples & problems, All HW problems Stereo proj, zone axis Space groups: Rohrer ch 2, 3 X ‐ ray sections: Cullity ch 1.1 1.7, 3.1 3.6, 3.8 3.9, ‐‐ ‐‐ ‐‐ 4.1 4.6 ‐‐...
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  • Spring '10
  • Robinson
  • Diffraction, Bragg, Bragg diffraction, Laue diffraction Experimental

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