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Main Title: Nachweis von Se6, Se7 und Se8 in Lösungen yon Selen mittels Hochdruckflüssigkeitschromatographie
Translated Title: Detection, of Se6, Se7 and Se8 in Selenium Solutions by High-Pressure Liquid Chromatography
Author(s): Steudel, Ralf
Strauss, Eva-Maria
Type: Article
Language Code: de
Abstract: Dissolution of crystalline Se8 or extraction of glassy or red amorphous selenium, prepared from aqueous SeO2 by reduction, by organic solvents yields solutions containing Se6, Se7 and Se8 in equilibrium as shown by HPLC. The equilibrium explains the concentration dependence of the molar absorbance of such solutions observed earlier. Since the Raman spectrum of red amorphous selenium does not show any lines due to Se6 Se7 and Se8 a rapid interconversion of selenium molecules in solution at 20 °C is postulated. Red amorphous selenium may consist of a mixture of small and medium sized ring molecules.
Issue Date: 1981
Date Available: 4-Jan-2019
DDC Class: 540 Chemie und zugeordnete Wissenschaften
Subject(s): elemental selenium
equilibrium in solution
amorphous selenium
Journal Title: Zeitschrift für Naturforschung B
Publisher: De Gruyter
Publisher Place: Berlin
Volume: 36
Issue: 9
Publisher DOI: 10.1515/znb-1981-0906
Page Start: 1085
Page End: 1088
EISSN: 1865-7117
ISSN: 0932-0776
Appears in Collections:FG Anorganische Chemie - Festkörper- und Materialchemie » Publications

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