| Autor: |
Lindner, Monika M., Beckmann, Udo, Eichberger, Eva, Reiß, Guido J., Kläui, Wolfgang |
| Zdroj: |
European Journal of Inorganic Chemistry; June 2010, Vol. 2010 Issue: 16 p2352-2360, 9p |
| Abstrakt: |
Square planar arenidotriphenylphosphanenickelII complexes 3 containing a N,Ochelate ligand are catalysts for the carbon monoxideethene copolymerisation reaction. Pathways for catalyst deactivation have been elucidated by investigating the reactions of such complexes with aliphatic unsaturated compounds like olefins and alkynes. We have shown that the double or triple bond, respectively, inserts into the nickel–carbon bond followed by βhydride elimination resulting in arylsubstituted olefins and allenes, which have been identified by means of GCMS. The remaining nickel forms a bisN,Ochelate ligandnickel complex, the crystal structure of which has been determined. The nickel atom is coordinated in a squareplanar manner by two ligands. Additional coordination of two neighbouring complexes via their nitrile groups completes the coordination of the nickel to a distorted octahedron and forms a twodimensional metalorganic framework MOF. |
| Databáze: |
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