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

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

doi:10.1021/ja00530a003

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

Robert C. Teitelbaum, Stanley L. Ruby, Tobin J. Marks^*

^*Corresponding author for this work

MRC - Materials Research Center

Research output: Contribution to journal › Article › peer-review

181 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 language	English (US)
Pages (from-to)	3322-3328
Number of pages	7
Journal	Journal of the American Chemical Society
Volume	102
Issue number	10
DOIs	https://doi.org/10.1021/ja00530a003
State	Published - May 1980

ASJC Scopus subject areas

Catalysis
General Chemistry
Biochemistry
Colloid and Surface Chemistry

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title = "A Resonance Raman/Iodine Mossbauer 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 (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.",

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AU - Marks, Tobin J.

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N2 - 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.

AB - 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.

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

Abstract

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