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Optical Transform (X-Ray Diffraction): Demo Kit

Optical Transform (X-Ray Diffraction): Demo Kit

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Type: CP, D, I    |    Level: AP, Coll
$25.00

Simulate X-ray diffraction using a visible laser and 2-D patterns on a transparency with the Optical Transform (X-Ray Diffraction) Kit. The kit includes a manual with directions, one each of the four different diffraction transparencies, and a full-page version of each transparency. The four diffraction transparencies have these patterns:

  • Unit Cell: examples for changes in unit cell size, angle, and shape; for centering with like and different atoms; for glide symmetry
  • Discovery: provides multiple examples for changes in orientation and in unit cell size; particularly appropriate for use in student investigations
  • VSEPR: complements discussions of molecular geometry such as VSEPR rules and illustrates one way that geometry differences can be detected in a triatomic molecule
  • Plane Groups: provides additional examples for the systematic absences that occur for centering and for glide symmetry

The manual provides step-by-step directions to lead you through demonstrating the Unit Cell transparency; investigative questions; and a reprint of the J. Chem. Ed article, "The Optical Transform: Simulating Diffraction Experiments in Introductory Courses" by George C. Lisensky, Thomas F. Kelly, Donald R. Neu, and Arthur B. Ellis.

Click the ICE structure to view the table of contents for the Optical Transform (X-Ray Diffraction) Kit.

Click the ICE structure for illustrations of the 4 diffraction transparencies included with Optical Transform (X-Ray Diffraction) Kit.

A source of visible laser light is not included, but any laser pointer will work.

Additional copies of each of the four Optical Transform (X-Ray Diffraction) Transparencies are available separately from the Kit. Purchasing additional Optical Transform (X-Ray Diffraction) Transparencies enables hands-on activities and student participation.

Simulate Rosalind Franklin's famous X-ray ­diffraction experiments that led to the discovery of the DNA double helix with the DNA Optical Transform (X-Ray Diffraction) Kit.