Structures and Properties of Nonchelated, d0 Alkyl Alkene Complexes of the Type [Cp2ZrMe(alkene)]+: Elusive Intermediates during Ziegler–Natta Polymerizations of Alkenes
Abstract:Auf frischer Tat ertappt: Der abgebildete Alkyl(alken)zirconium(IV)‐Komplex (Cp=C5H5) wurde synthetisiert und charakterisiert. Das Alken ist sehr unsymmetrisch gebunden, sodass C2 einen stark carbokationischen Charakter hat. Ferner war eine Rotation um die C1‐C2‐Bindung nachweisbar. Dieser außergewöhnliche Komplex kann als Modell für bislang unbekannte Zwischenstufen in Ziegler‐Natta‐ und carbokationischer Alkenpolymerisation angesehen werden.magnified image
This review summarizes the recent advances in the synthesis of transition metal borataalkene and boraalkene complexes, and the η2-B,C coordination mode in homogeneous catalysis.
This review summarizes the recent advances in the synthesis of transition metal borataalkene and boraalkene complexes, and the η2-B,C coordination mode in homogeneous catalysis.
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