A resonance Raman/iodine Moessbauer investigation of the starch-iodine structure: aqueous solution and iodine vapor preparations. Interim report

Technical Report · Tue Mar 04 23:00:00 EST 1980

OSTI ID:6776600

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(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 Moessbauer spectrum.

• Research Organization: Northwestern Univ., Evanston, IL (USA). Dept. of Chemistry
• OSTI ID: 6776600
• Report Number(s): AD-A-082306
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ALCOHOLS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CARBOHYDRATES
CHEMICAL REACTIONS
COMPLEXES
CRYSTALLIZATION
DECOMPOSITION
DISPERSIONS
ELEMENTS
FLUIDS
GASES
HALOGENS
HYDROLYSIS
HYDROXY COMPOUNDS
INTERMEDIATE MASS NUCLEI
INTERNAL CONVERSION RADIOISOTOPES
IODINE
IODINE 129
IODINE COMPLEXES
IODINE ISOTOPES
ISOTOPES
LYSIS
MAGNETIC RESONANCE
MIXTURES
MOESSBAUER EFFECT
MOLECULAR STRUCTURE
NONMETALS
NUCLEAR MAGNETIC RESONANCE
NUCLEI
ODD-EVEN NUCLEI
ORGANIC COMPOUNDS
PHASE TRANSFORMATIONS
POLYSACCHARIDES
RADIOISOTOPES
RAMAN SPECTRA
REAGENTS
RESONANCE
SACCHARIDES
SOLUTIONS
SOLVOLYSIS
SPECTRA
STARCH
VAPORS
YEARS LIVING RADIOISOTOPES