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

Robert C. Teitelbaum, Stanley L. Ruby, Tobin Jay Marks*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

161 Scopus citations

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 (I5-) anion. For the material prepared from iodine vapor, the iodide required for I5- 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.

Original languageEnglish (US)
Pages (from-to)3322-3328
Number of pages7
JournalJournal of the American Chemical Society
Volume102
Issue number10
DOIs
StatePublished - Jan 1 1980

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

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