Metallic complexes of 2-pyridyldiphenylphosphine

Coordination complexes of silver(I) with tertiary phosphine and related ligands

“…The N-coordination of diphenyl(2-pyridyl)phosphine to a metal ion results in a shift to higher frequencies in the IR absorptions of the pyridine ring by 15-30 cm −1 [239,240]. Based on this shift in IR absorptions, early studies [241,242] focused on dividing the metal complexes of diphenyl(2-pyridyl)phosphine into those in which the metal is essentially P-coordinated or N-coordinated. The silver(I) chloride complexes were assigned to the former group, owing to lack of change in the IR absorptions of the pyridine ring.…”

Synthesis, characterization and catalytic applications of rhodium(I) organometallics with substituted tertiary phosphines

“…The compounds 1b and 2b exhibited a signal at 38.41 and 38.52 ppm, respectively, [11,19] [20]. The compounds 1i and 2i show signals at 184.14 and 184.32 ppm, respectively, due to uncoordinated formyl group of tertiary phosphine.…”

Iminophosphanes: Synthesis, Rhodium Complexes, and Ruthenium(II)-Catalyzed Hydration of Nitriles

“…12a,12c,13b A popular ligand in the complexes used for these reactions is 2-pyridyldiphenylphosphane (PyPPh 2 ), 3,16 even though it has limited flexibility for steric and electronic tuning of particularly the N-donor site. Replacement of the pyridine group by an imine or amine functionality provides 1,3-P,N ligands with more opportunities to tune the properties of their derived catalysts.…”

“…Exemplary reactions that make use of 1,3-P,N ligands are the Ru-catalyzed hydration of nitriles, ,, the Pd-catalyzed carbonylation of alkynes, ,, Pd-catalyzed Buchwald–Hartwig and Suzuki–Miyaura cross-coupling reactions, dinuclear Pd- and [Fe-Rh]-catalyzed carbonylation of alcohols, ,, the Ru- and Au-catalyzed hydration of alkynes, , the Ru-catalyzed transfer hydrogenation of ketones and aldehydes, , the Ru-catalyzed isomerization of alkenes, the Ru-catalyzed and dinuclear Rh-catalyzed hydrogenation of alkenes, , the Rh-, Ir-, and [Ru–Rh]-catalyzed hydroformylation of alkenes, ,, and the Cr-catalyzed tri- and tetramerization of ethylene, whereas Cu I 2 and [Au I 3 -Ag I ] complexes have been used in photoluminescence. ,, A popular ligand in the complexes used for these reactions is 2-pyridyldiphenylphosphane (PyPPh 2 ), , even though it has limited flexibility for steric and electronic tuning of particularly the N-donor site. Replacement of the pyridine group by an imine or amine functionality provides 1,3-P,N ligands with more opportunities to tune the properties of their derived catalysts.…”