Die Reaktion von Tri-t-butylphosphan und Tri-t-butylarsan mit Selen und Tellur: Bildung inerter und labiler Chalkogenophosphorane und -arsorane / The Reaction of Tri-t-butylphosphane and Tri-t-butylarsane with Selenium and Tellurium: Formation of Inert and Labile Chalcogenophosphoranes and -arsoranes
Open Access
- 1 November 1985
- journal article
- Published by Walter de Gruyter GmbH in Zeitschrift für Naturforschung B
- Vol. 40 (11) , 1453-1456
- https://doi.org/10.1515/znb-1985-1106
Abstract
The reactions of tri-t-butylphosphane 1 with selenium and tellurium proceed quantitatively with formation of seleno- and the telluro-tri-t-butylphosphorane. respectively (3, 4). Tri-t-butylarsane 2 reacts with selenium to give seleno-tri-t-butylarsorane (5), but no significant interaction is observed between 2 and elemental tellurium. 1H and 31P NMR spectra provide evidence for rapid tellurium transfer between telluro-tri-t-butylphosphorane (4) and tri-t-butylphosphane (1), tri-t-butylarsane (2) or tris(dimethylamino)phosphane. Selenium transfer between seleno-tri-t-butylarsorane (5) and tri-t-butylarsane (2) leads to 1H and 13C NMR line broadening. Vibrational spectra of t-Bu3E−Y (3: E = P, Y = Se; 4: E = P, Y = Te; 5: E = As, X = Se) indicate coupling of E−C and E−Y stretching vibrations in 3 and 4.Keywords
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