Diphenylarsinoderivate des Maleins�ureanhydrids und verwandte Verbindungen. Kristall- und Molek�lstruktur des 2,3-Bis(diphenylstibino)maleins�ureanhydrids

Autor: Dieter Fenske, Hermann J. Becher, Werner Renz, Heinz Teichert, Heinz Prokscha
Rok vydání: 1980
Předmět:
Zdroj: Monatshefte f�r Chemie. 111:177-191
ISSN: 1434-4475
0026-9247
DOI: 10.1007/bf00938726
Popis: The unusual properties of bis(diphenylphosphino)maleic anhydride and similar ditertiary phosphines has prompted the synthesis of analogous arsines and stibines. Bis(diphenylarsino)maleic anhydride,-maleic thioanhydride and-N-methyl maleic imide, bis(diphenylstibino)maleic anhydride (5) and-maleic thioanhydride are obtained as crystalline yellow or red compounds by the reaction of the corresponding 2,3-dichloromaleic acid derivatives with diphenyl(trimethylsilyl)arsine and-stibine resp. The uv/vis spectra and characteristic i.r. bands of selected compounds are given and compared with those of the corresponding phosphines. The strong shift of νC=C to lower wavenumbers observed in all compounds has caused the determination of crystal and molecular structure of5 by x-ray diffraction. Bond distances and angles are given. The complex formation of the new diarsine ligands has been examined by the preparation of Ni-, Cr- and Mo-carbonyl derivatives. As the first organylsulfane substituted maleic acid derivatives bis(phenylthio)maleic thioanhydride,-N-methyl-maleic imide and-maleic acid dimethylester are synthesized and described.
Databáze: OpenAIRE
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