Resonance Raman/iodine Moessbauer investigation of the starch-iodine structure: aqueous solution and iodine vapor preparations

Journal Article · Wed May 07 00:00:00 EDT 1980 · J. Am. Chem. Soc.; (United States)

DOI:https://doi.org/10.1021/ja00530a003· OSTI ID:5070109

Teitelbaum, R C; Ruby, S L; Marks, T J

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 Moessbauer spectroscopy. In both cases it is concluded that the identity of the major chromophore is essentially the same: the pentaiodide (I/sub 5//sup -/) anion. For the material prepared from iodine vapor, the iodide required for I/sub 5//sup -/ formation is produced by hydrolysis or alcoholysis of iodine. The other product of this reaction, a hypoiodite, has been assigned in the iodine Moessbauer spectrum.

• Research Organization: Northwestern Univ., Evanston, IL
• OSTI ID: 5070109
• Journal Information: J. Am. Chem. Soc.; (United States), Journal Name: J. Am. Chem. Soc.; (United States) Vol. 102:10; ISSN JACSA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
400301 -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
AQUEOUS SOLUTIONS
CARBOHYDRATES
COMPLEXES
DATA
DISPERSIONS
EXPERIMENTAL DATA
FLUIDS
GASES
INFORMATION
IODINE COMPLEXES
MIXTURES
MOESSBAUER EFFECT
NUMERICAL DATA
ORGANIC COMPOUNDS
POLYSACCHARIDES
RAMAN SPECTRA
REAGENTS
SACCHARIDES
SOLUTIONS
SPECTRA
STARCH
VAPORS