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Cyclotrimerization of Ethyne on the Complex Fragment [(η1-tBu2PCH2PtBu2)Ni0] with Formation of an η6-Benzene-Nickel(0) Complex

MPS-Authors

Nickel,  Thomas
Max-Planck-Institut für Kohlenforschung, Max Planck Society;

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Goddard,  Richard
Service Department Lehmann (EMR), Max-Planck-Institut für Kohlenforschung, Max Planck Society;

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Krüger,  Carl
Service Department Krüger (XRAY), Max-Planck-Institut für Kohlenforschung, Max Planck Society;

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Pörschke,  Klaus-Richard
Research Group Pörschke, Max-Planck-Institut für Kohlenforschung, Max Planck Society;

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Citation

Nickel, T., Goddard, R., Krüger, C., & Pörschke, K.-R. (1994). Cyclotrimerization of Ethyne on the Complex Fragment [(η1-tBu2PCH2PtBu2)Ni0] with Formation of an η6-Benzene-Nickel(0) Complex. Angewandte Chemie International Edition, 33(8), 879-882. doi:10.1002/anie.199408791.


Cite as: https://hdl.handle.net/11858/00-001M-0000-0024-44B1-A
Abstract
The first Ni0 complex with an arene as a six-electron ligand, complex 1 is formed by the displacement of the ethene ligands in [(η1-tBu2PCH2PtBu2)Ni(C2H4)2] by ethyne, which undergoes cyclotrimerization on the phosphane-nickel complex fragment at temperatures below −50 °C (!). The Ni atom in 1 has pseudo-linear coordination to the η1-bound diphosphane ligand and the planar, symmetric benzene ligand.