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BY-NC-ND 3.0 license Open Access Published by De Gruyter June 2, 2014

Tetramesityldibismutan, Bis(dimesitylbismut)- und Bis(dimethylbismut)chalkogenide / Tetramesityldibismuthane, Bis(dimesitylbismuth)- and Bis(dimethylbismuth)chalcogenides

Hans Joachim Breunig, Klaus Heinz Ebert, Reinhold Ernst Schulz, Markus Wieber and Ingbert Sauer

Abstract

Reduction of Mes2BiBr with Na in liquid NH3 or with Cp2Co in THF or C6D6 gives Mes4Bi2 (1) as a red solid that reversibly becomes pink on cooling with liquid nitrogen. Oxidation of 1 in air, or reaction of Mes2BiBr with NaOH, gives (Mes2Bi)2O (2). (Mes2Bi)2S (3) and (Mes2Bi)2Se (4) are formed by reaction of Mes2BiBr with Na2S in water or with Na2Se in liquid NH3, respectively. (Mes2Bi)2Te (5) is obtained by reaction of 1 with Te or by reaction of Mes2BiBr with Na2Te. Reactions of Me4Bi2 with Se or Te produce (Me2Bi)2Se (6) and (Me2Bi)2Te (7). With equimolar amounts of p-benzoquinone tetramethyldibismuthane yields 1,4-C6H4(OBiMe2)2 (8). 1H NMR data and mass spectra of 1-8, UV-VIS data of 1-4, and the crystal structures of 2·0,5C2H5OH, 3 and 4 are reported.

Received: 1994-11-7
Published Online: 2014-6-2
Published in Print: 1995-5-1

© 1946 – 2014: Verlag der Zeitschrift für Naturforschung

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

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