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Journal Article

Bis(dimethylphosphino)methan-Nickel(0)-Komplexe

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

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Mynott,  Richard
Service Department Mynott (NMR), Max-Planck-Institut für Kohlenforschung, Max Planck Society;

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Citation

Pörschke, K.-R., & Mynott, R. (1987). Bis(dimethylphosphino)methan-Nickel(0)-Komplexe. Zeitschrift fur Naturforschung Section B-A Journal of Chemical Sciences, 42(4), 421-424.


Cite as: https://hdl.handle.net/11858/00-001M-0000-0026-C79E-1
Abstract
The reaction of tris(ethene)nickel(0) with stoichiometric amounts of bis(dimethylphosphino)methane (dmpm) in ether at low temperature affords the yellow crystalline, dinuclear complexes (dmpm)Ni2(CH4)4 (1) and (dmpm)2Ni2(C2H4)2 (2). 2 reacts with ethyne to yield (dmpm)2Ni2(C2H2)2 (3). When 2 is treated with CO at —40 °C the primary product is (dmpm)2Ni2(CO)2(µ-CO) (4). At 20 °C 4 is converted by additional CO into (dmpm)2Ni2(CO)4 (5), which has already been characterized as the reaction product of Ni(CO)4 with dmpm. In compounds 1—5 the bidentate dmpm acts as a bridging and not as a chelating ligand. The structures of complexes 1—4 were assigned on the basis of their 13C and 31P NMR spectra.