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Preliminary Examination of Crystals by Optical and X-Ray Methods

  • M. F. C. Ladd
  • R. A. Palmer

Abstract

In this chapter we shall discuss the interaction between crystals and two different electromagnetic radiations, light and X-rays. Light, with its longer wavelength (5000–6000 Å), can reveal only limited information about crystal structures, whereas X-rays with wavelengths of less than about 2 Å can be used to determine the relative positions of atoms in crystals. A preliminary examination of a crystal aims to determine its space group and unit-cell dimensions, and may be carried out by a combination of optical and X-ray techniques. The optical methods described here are simple, but, nevertheless, often very effective; they should be regarded as a desirable prerequisite to an X-ray structure determination.

Keywords

Reciprocal Lattice Preliminary Examination Orthorhombic Crystal Uniaxial Crystal Vibration Direction 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Plenum Press, New York 1985

Authors and Affiliations

  • M. F. C. Ladd
    • 1
  • R. A. Palmer
    • 2
  1. 1.University of SurreyGuildfordEngland
  2. 2.Birkbeck CollegeUniversity of LondonLondonEngland

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