Phase problem part of Nanotechnology in STEM:Methods
A content page in a STEM education module explains the phase problem in X-ray crystallography, covering X-ray diffraction, Fourier synthesis, reciprocal lattice, electron density mapping, and methods like direct methods and Patterson analysis for solving crystal structures in nanotechnology research.
Single-crystal X-ray Diffraction part of Nanotechnology in STEM:Methods
Single-crystal X-ray Diffraction is a non-destructive analytical technique which provides detailed information about the internal lattice of crystalline substances, including unit cell dimensions, bond-lengths, ...
Single Crystal Structure Refinement (SREF) part of Integrating Research and Education:Geochemical Instrumentation and Analysis
Educational webpage detailing single-crystal structure refinement in geochemistry, covering solution methods for known and unknown minerals, refinement results (R1, wR2, GooF), atom assignment, thermal parameters, and software tools like SHELXTL, within the context of geochemical instrumentation and analysis.
Phase problem part of Integrating Research and Education:Geochemical Instrumentation and Analysis
A content page from the "Geochemical Instrumentation and Analysis" module on SERC, explaining the phase problem in X-ray crystallography, detailing how missing phase data in diffraction experiments complicates structure determination, and covering methods like direct methods and the Patterson method for solving crystal structures.
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