The reaction of the bis(methoxy)-2-pyridyl-phosphine (MeO)2P(2-py) (1) with [Ni(MeCN)6](BF4)2 leads to the unexpected single-step reduction of NiII and the formation of a tetrahedral nickel(0) complex [{(MeO)2P(2-py-H)}2{(MeO)2P(2-py)}2Ni](BF4)2 (2). The redox activity is probably induced by the decomposition of the tetrafluoroborate anion; NMR spectroscopic studies point towards a fluoride-assisted oxidation of the 2-pyridyl-phosphine ligand, with associated reduction of the metal.
Facile synthesis of a nickel(0) phosphine complex at ambient temperature / S. Hanf, T. Grell, J.E. Waters, R. Garcia-Rodriguez, E. Hey-Hawkins, D.S. Wright. - In: CHEMICAL COMMUNICATIONS. - ISSN 1359-7345. - 56:57(2020 Jun 05), pp. 7893-7896. [10.1039/d0cc02142c]
Facile synthesis of a nickel(0) phosphine complex at ambient temperature
T. GrellSecondo
;
2020
Abstract
The reaction of the bis(methoxy)-2-pyridyl-phosphine (MeO)2P(2-py) (1) with [Ni(MeCN)6](BF4)2 leads to the unexpected single-step reduction of NiII and the formation of a tetrahedral nickel(0) complex [{(MeO)2P(2-py-H)}2{(MeO)2P(2-py)}2Ni](BF4)2 (2). The redox activity is probably induced by the decomposition of the tetrafluoroborate anion; NMR spectroscopic studies point towards a fluoride-assisted oxidation of the 2-pyridyl-phosphine ligand, with associated reduction of the metal.
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