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• W2090930675 abstract "Das durch Deprotonierung von cis-Tetracarbonylbis(dimethylphosphin)molybdän(0) zugängliche Dilithiumsalz cis-Mo(CO)4(Me2PLi)2 (1) reagiert mit Dibrommethylstibin bzw. Dichlormethylbismutin unter Bildung der ungewöhnlichen Komplexverbindungen (CO)4Mo(PMe2–SbMe–SbMe–PMe2) (4) und (CO)4Mo(PMe2–BiMe–BiMe–PMe2) (5). Umsetzung von 1 mit tert-Butyldichlorphosphin liefert in geringer Ausbeute den Komplex eines Triphosphins, (CO)4-Mo(PMe2–PBut–PMe2) (6). Während 1 mit Dichlordimethylsilan nur polymere Produkte uneinheitlicher Zusammensetzung liefert, entstehen mit Bis(cyclopentadienyl)titan- bzw. -zir-coniumdichlorid oder 1,2-Dichlor-1,1,2,2-tetramethyldisilan die erwarteten Chelatringsysteme (CO)4Mo(PMe2–Cp2EIvb–PMe2) (EIvb = Ti, Zr) (8, 9) bzw. (CO)4 Mo(PMe2–SiMe2–SiMe2–PMe2) (7) in guten Ausbeuten. Die Struktur der Verbindungen wird auf der Basis ihrer Spektren diskutiert. Reactions of Coordinated Ligands, III. Synthesis of Heteroatom Chelate Complexes via the Lithium Phosphido Complex cis-Mo(CO)4(Me2PLi)2 The dilithium salt cis-Mo(CO)4(Me2PLi)2 (1), obtained by deprotonation of cis-tetracarbonyl-bis(dimethylphosphine)molybdenum(0), reacts with dibromomethylstibine or dichloromethylbismutine to give the unusual complexes (CO)4Mo(PMe2–SbMe–SbMe–PMe2) (4) and (CO)4Mo(PMe2–BiMe–BiMe–PMe2) (5), respectively. Reaction of 1 with tert-butyldichlorophosphine affords in low yield a complex of a triphosphine, cis-Mo(CO)4(PMe2–PBut–PMe2) (6). While with dichlorodimethylsilane 1 affords only polymeric products of variable composition, with bis(cyclopentadienyl)titanium- or -zirconium dichloride and 1,2-dichloro-1,1,2,2-tetramethyldisilane the expected chelate complexes (CO)4Mo(PMe2–CP2EIvb–PMe2) (EIvb = Ti, Zr) (8, 9) or (CO)4Mo(PMe2–SiMe2–SiMe2–PMe2) (7), respectively, are obtained in good yields. The structure of these compounds is dicussed on the basis of their spectra." @default.
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• W2090930675 title "Reaktionen koordinierter Liganden, III. Synthese von Heteroatom‐Chelatring‐Komplexen mit Hilfe des Lithiumphosphido‐Komplexes <i>cis</i> ‐Mo(CO) ₄ (Me ₂ PLi) ₂" @default.
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• W2090930675 doi "https://doi.org/10.1002/cber.19771101023" @default.
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