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

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...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	Teitelbaum,Robert C, Ruby,Stanley L, Marks,Tobin J
Format:	Report
Sprache:	eng
Schlagworte:	ALCOHOLS Alcoholysis Atomic and Molecular Physics and Spectroscopy CHROMOPHORES Crystalline amylose CRYSTALLIZATION HYDROLYSIS IODINE Linear helical components LINEAR SYSTEMS MOLECULAR STRUCTURE MOSSBAUER EFFECT NUCLEAR MAGNETIC RESONANCE RAMAN SPECTROSCOPY SOLUTIONS(MIXTURES) STARCHES VAPORS WATER SOLUBLE MATERIALS WUNR053640
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	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) Prepared in cooperation with Argonne National Lab., IL. Physics Div.