Some Aspects of the Organic Chemistry of Selenium.

Mixed anionic and zwitterionic surfactant based microemulsions as vehicles for solubilizing organodiselenides

“…The values of k max in most selenides synthesized fall in the range of 284-336 nm [25]. The band at 300 nm in diselenide has been assigned to Se-Se chromophore [26]. The observed band is due to Se-C 6 H 5 chromophore, which involves 4p electrons of Se in conjugation with 6p electrons of the pyridyl ring.…”

The Use of Ion Mobility Mass Spectrometry for Isomer Composition Determination Extracted from Se-Rich Yeast

“…The synthesis of such Se-compounds also seems problematic because of nontrivial reaction pathways in order to obtain the expected organoselenium compounds. 43 Nevertheless, Dernovics and co-workers, 40 after several chromatographic purification steps followed by parallel ICP MS and ESI-MS detection, succeeded to slightly separate the isomers of 2,3- DHP-selenocystathionine by hydrophilic interaction liquid chromatography (HILIC) while working on the purification of several Se-metabolites. The Saccharomyces cerevisiae CNCM I-3060 batch ES453 of Se-rich yeast used by Dernovics and coworkers was produced by the same manufacturer and was described to be closely related (in terms of selenocompound composition) to the ES1149 batch used for this study.…”

Eine wohldefinierte zweikernige Telluronsäure [RTe(μ‐O)(OH)3]2

“…[1][2][3][4] Selenonsäuren, RSeO 3 H, [1] sind wie Sulfonsäuren starke Säuren, jedoch im Gegensatz zu ihren Schwefel-Homologen zugleich starke Oxidationsmittel -stark genug, um Chlorid-Ionen zu Chlor zu oxidieren.…”