A Resonance Raman/Iodine Moessbauer Investigation of the Starch-Iodine Structure: Aqueous Solution and Iodine Vapor Preparations.

Abstract

The structure of the blue-black iodine complex of amylose (the linear, helical component of starch) prepared either from iodine and iodide in aqueous solution or from crystalline amylose and iodine vapor, has been studied by resonance Raman and iodine -129 Mossbauer spectroscopy. In both cases it is concluded that the identity of the major chromophore is essentially the same: the pentaiodide (I(5-1)) anion. For the material prepared from iodine vapor, the iodide required for (I(5-1)) formation is produced by hydrolysis or alcoholysis of iodine. The other product of this reaction, a hypoiodite, has been assigned in the iodine Mossbauer spectrum. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Mar 05, 1980
Accession Number
ADA082306

Entities

People

  • Robert C. Teitelbaum
  • Stanley L. Ruby
  • Tobin J. Marks

Organizations

  • Northwestern University

Tags

Communities of Interest

  • C4I
  • Ground and Sea Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Chemistry
  • Crystal Structure
  • Diffraction
  • Energy Bands
  • Frequency
  • Iodine Compounds
  • Materials
  • Military Research
  • Mixing
  • New York
  • Raman Spectra
  • Raman Spectroscopy
  • Scattering
  • Spectra
  • Symmetry
  • X Rays
  • X-Ray Diffraction

Readers

  • Materials Science.
  • Organic Chemistry