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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 607 (1992), S. 131-138 
    ISSN: 0044-2313
    Keywords: Rhodium(I) complexes ; donor/acceptor ligands ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Alternative Ligands. XXIII Rhodium(I) Complexes with Donor/Acceptor Ligands of the Type (Me2PCH2CH2)2SiX2 and (2-Me2PC6H4)SiXMe2 (X = F, Cl)Donor/acceptor ligands of the type (Me2PCH2CH2)2SiX2 and (2-Me2PC6H4)SiXMe2 (X = F, Cl) react with [Rh(CO)2Cl]2 (1) to give the mononuclear complexes RhCl(CO)(Me2PCH2CH2)2SiX2 [X = F(4), Cl (5)] and RhCl(CO)[2-Me2PC6H4)SixMe2]2 [X = F (8), Cl (9)], respectively. In case of the ligands (Me2PCH2CH2)2SiCl2 (3) and (2-Me2PC6H6)SiClMe2 (7) the Rh(I) complexes formed in the first step partly undergo oxidative addition reactions of SiCl bonds yielding rhodium(III) compounds of low solubility. Only for 8 the coordination shifts Δδ = δ(complex)-δ(ligand) and coupling constants give some indication to possible Rh→Si interactions. However, the molecular structure of 8 determined by X-ray diffraction does not show RhSi or RhF bonding contacts. The new compounds were characterized by analytical (C, H) and spectroscopic investigations (MS, IR,-NMR).
    Notes: Donor/Akzeptor-Liganden des Typs (Me2PCH2CH2)2SiX2 und (2-Me2PC6H4)SiXMe2 (X = F, Cl) reagieren mit [Rh(CO)2Cl]2 (1) zu den Einkernkomplexen RhCl(CO)(Me2PCH2CH2)2SiX2 [X = F(4), Cl (5)] bzw. RhCl(CO)[(2-Me2PC6H4)SiXMe2]2 [X = F(8), Cl (9)]. Bei den Liganden (Me2PCH2CH2)2SiCl2 (3) und (2-Me2PC6H4)SiCMe2 (7) treten als Folgeprodukte der primär gebildeten Rh(I)-Komplexe durch oxidative Addition von SiCl Rhodium(III)-Verbindungen geringer Löslichkeit auf. Nur im Fall von 8 geben die Koordinationsverschiebungen Δδ = δ(Komplex)-δ(Ligand) und Kopplungskonstanten Hinweise auf mögliche RhSi-Wechselwirkungen. Die durch Röntgenbeugung ermittelte Molekülstruktur von 8 zeigt allerdings keine RhSi- oder RhF-Bindungskontakte. - Die neuen Verbindungen wurden durch analytische (C, H) und spektroskopische Untersuchungen (MS, IR, NMR) charakterisiert.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
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