Article | REF: P1076 V1

X-ray crystal structure determination: numerical methods

Author: Yves JEANNIN

Publication date: April 10, 1996

You do not have access to this resource.
Click here to request your free trial access!

Already subscribed? Log in!


3. Steps in crystal structure determination

Structure resolution: sequence of operations
  • Processing of raw experimental data and calculation of structure factor moduli with their standard deviation.

  • Data analysis and space group search based on systematic extinctions.

  • First empirical absorption correction with assumed mesh content.

  • First search for the structure using direct methods and/or Patterson's function.

  • Alternating cycles of least-squares refinement and Fourier series to identify all atoms and refine their coordinates.

  • Fourier series difference and verification that all atoms in the mesh, including solvent molecules, are taken into account.

  • New absorption correction...

You do not have access to this resource.

Exclusive to subscribers. 97% yet to be discovered!

You do not have access to this resource.
Click here to request your free trial access!

Already subscribed? Log in!


The Ultimate Scientific and Technical Reference

A Comprehensive Knowledge Base, with over 1,200 authors and 100 scientific advisors
+ More than 10,000 articles and 1,000 how-to sheets, over 800 new or updated articles every year
From design to prototyping, right through to industrialization, the reference for securing the development of your industrial projects

This article is included in

Analysis and Characterization

This offer includes:

Knowledge Base

Updated and enriched with articles validated by our scientific committees

Services

A set of exclusive tools to complement the resources

Practical Path

Operational and didactic, to guarantee the acquisition of transversal skills

Doc & Quiz

Interactive articles with quizzes, for constructive reading

Subscribe now!

Ongoing reading
Steps in crystal structure determination