New nickel(O) complexes with bulky diphosphine ligands
摘要:
The synthesis and characterization of new complexes of formula Ni(dp), Ni(dp)C7H8 (dp = 1, 2-bis-dicyclohexylphosphino)ethane [dcpe]; 1,3-bis(dicyclohexylphosphino)propane [dcpp]; 1,4-bis(dicyclohexylphosphino) butane [dcpb]), Ni2(dcpe)3, Ni2(dcpb)3, Ni(dcpe)2 and Ni(depe)2 (depe = 1,2-bis(diethylphosphino)-ethane) are described. The electronic spectra of these complexes are discussed.
New nickel(O) complexes with bulky diphosphine ligands
摘要:
The synthesis and characterization of new complexes of formula Ni(dp), Ni(dp)C7H8 (dp = 1, 2-bis-dicyclohexylphosphino)ethane [dcpe]; 1,3-bis(dicyclohexylphosphino)propane [dcpp]; 1,4-bis(dicyclohexylphosphino) butane [dcpb]), Ni2(dcpe)3, Ni2(dcpb)3, Ni(dcpe)2 and Ni(depe)2 (depe = 1,2-bis(diethylphosphino)-ethane) are described. The electronic spectra of these complexes are discussed.
Reactivity of nickel (II) diphosphine complexes towards alkoxides: a new route to the synthesis of nickel(0) compounds through nickel(II) alkoxides
作者:Adriano Sacco、Pietro Mastrorilli
DOI:10.1039/dt9940002761
日期:——
and aldehyde (or acetone when R = Pri) in 1 :1 :1 ratio, showing the peculiar reducing effect of alkoxide promoted by the chelating property of the phosphorus ligand. The reaction of NaOMe with [Ni(dcpe)Cl2][dcpe = 1,2-bis(dicyclohexylphosphino)-ethane] afforded mainly [Ni2(dcpe)3] when carried out in the absence of free diphosphine, and [Ni(dcpe)2] in the presence of free diphosphine. The reaction always
Carbon dioxide-transition metal complexes. IV. New Ni(0)CO2 complexes with chelating diphosphines: influence of PNiP angle on complex stabilities
作者:Pietro Mastrorilli、Giovanni Moro、Cosimo Francesco Nobile、Mario Latronico
DOI:10.1016/s0020-1693(00)80758-6
日期:1992.2
The reaction between Ni(O) complexes (dp) (dp = 1,2-bis(dicyclohexylphosphino)ethane, 1,3-bis(dicyclohexylphosphino) propane, 1,4-bis(dicyclohexylphosphino)butane; dcpe, dcpp, dcpb, respectively) and carbon dioxide is described. The influence of the P-Ni-P bond angle on the stability of the corresponding adducts is discussed. The reactions of Ni(dcpp)CO2 and Ni(dcpb)CO2 with dioxygen are also described.
New nickel(O) complexes with bulky diphosphine ligands
作者:Pietro Mastrorilli、Giovanni Moro、Cosimo Francesco Nobile、Mario Latronico
DOI:10.1016/s0020-1693(00)80757-4
日期:1992.2
The synthesis and characterization of new complexes of formula Ni(dp), Ni(dp)C7H8 (dp = 1, 2-bis-dicyclohexylphosphino)ethane [dcpe]; 1,3-bis(dicyclohexylphosphino)propane [dcpp]; 1,4-bis(dicyclohexylphosphino) butane [dcpb]), Ni2(dcpe)3, Ni2(dcpb)3, Ni(dcpe)2 and Ni(depe)2 (depe = 1,2-bis(diethylphosphino)-ethane) are described. The electronic spectra of these complexes are discussed.