DETERMINATION OF THE HYDRIDE CONCENTRATION IN ALKYLDIBORANES(6) BY B-11 NMR-SPECTROSCOPY - REDUCTION OF INORGANIC SELENIUM AND TELLURIUM COMPOUNDS

Authors
WRACKMEYER B SCHANZ HJ SCHUSSLER W KOSTER R
Citation
B. Wrackmeyer et al., DETERMINATION OF THE HYDRIDE CONCENTRATION IN ALKYLDIBORANES(6) BY B-11 NMR-SPECTROSCOPY - REDUCTION OF INORGANIC SELENIUM AND TELLURIUM COMPOUNDS, Fresenius' journal of analytical chemistry, 362(4), 1998, pp. 378-381
Citations number
26
Categorie Soggetti
Chemistry Analytical
Journal title
Fresenius' journal of analytical chemistry → ACNP
ISSN journal
09370633
Volume
362
Issue
4
Year of publication
1998
Pages
378 - 381
Database
ISI
SICI code
0937-0633(1998)362:4<378:DOTHCI>2.0.ZU;2-8
Abstract
As an alternative to volumetric analysis, B-11 NMR spectroscopy can be used to determine the hydride concentration and the relative amount o f different active hydride species in mixtures of alkyldiboranes(6) (a lkyl = Et, Pr). Inorganic selenium(IV) compounds react with propyl-dib oranes(6) at first to give elemental selenium (hydride number HN = 4) and after prolonged heating at 130 degrees C to selenides (HN = 6). In contrast, tellurium(IV) and tellurium(VI) compounds are reduced only to elemental tellurium.