Crystallographic phase problem - PowerPoint PPT Presentation

Lesson 21

Lesson 21. Solving the structure The Phase Problem Charge Flipping Direct Methods—the black box of crystallography. Electron Density in Crystals. Since the crystal is made up of repeating unit cells, the electron density in the cell must be periodic! This is called the Charge Density Wave.

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Molecular Biophysics Solving the phase problem

Molecular Biophysics Solving the phase problem. Der Weg zur Röntgenkristallstruktur eines Proteins. Electron density equation. The electron density equation. Electron density equation. F ( h k l ) =  cell r ( x y z ) exp (2 p i { hx + ky + lz }) d 3 r.

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487 views • 28 slides

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