Journal
ORGANOMETALLICS
Volume 34, Issue 12, Pages 2710-2713Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.organomet.5b00264
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Funding
- Netherlands Organization for Scientific Research (NWO)
- European Union [PIIF-GA-2012-327306]
- Dutch National Research School Combination Catalysis (NRSC-C)
- Sectorplan Natuur- en Scheikunde (Tenure-track grant at Utrecht University)
- SURF Foundation
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The coordination chemistry of the diphosphine-ketone ligand 2,2'-dis(diphenylphosphino)benzophenone ((Ph)dpbp) with nickel is reported. The ketone moiety does not bind to Ni(II) in the complex ((Ph)dpbp)NiCl2, whereas reduction to Ni(I) or Ni(0) induces eta(2)(C,O) coordination of the ketone to form the pseudotetrahedral complexes ((Ph)dpbp)NiCl and ((Ph)dpbp)Ni(PPh3). DFT calculations indicate that the metal-ketone bond is dominated by pi back-donation; hence, (Ph)dpbp functions as a hemilabile acceptor ligand in this series of complexes.
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