New cationic palladium (II) and rhodium (I) complexes of [Ph2PCH2C(Ph)N(2,6-Me2C6H3)]

Alkyne oligomerization mediated by rhodium complexes with a phosphinosulfonamido ligand and isolation and characterization of a rhodacyclopentadiene complex

“…(1)). As shown in Table 4, phenylacetylene is polymerized in organic solvents such as CDCl 3 , CH 2 Cl 2 , benzene and THF (entries [1][2][3][4][5] to give polymers with molecular weights (M w ) in the range of 17 800-63 200 and polydispersities in the range of 1.55-2.88. The yields of the polymerization reactions carried out in THF are better than those in CDCl 3 , CH 2 Cl 2 or benzene, although the origin of the difference is not clear to us.…”

“…It should be noted that the chemistry of late transition metal complexes with hard/soft chelating ligands has received much attention [3]. A number rhodium and iridium complexes with other P,N mixed-donor ligands (for example, phosphine-pyridine, phosphine-oxazoline, phosphine-pyrazolyl, and phosphine-imidazole) have been synthesized and investigated for their catalytic properties [4].…”

Comparison of the Reactivity of Platinum(II) and Platinum(0) Complexes with Iminophosphine and Phosphinocarbonyl Ligands

“…This can be illustrated by the difference in the trans influence of the phosphorus donor atom compared to nitrogen or oxygen. For example, in an iminophosphine complex the bond trans to the phosphorus is longer than that trans to the nitrogen, indicating the greater trans influence of phosphorus compared to the imine donor functionality. − The hard/soft combination also leads to versatile coordination behavior with metal ions in different oxidation states and the potential for hemilability …”

“…While there are several examples in the literature of iminophosphines with different carbon backbones and substituents on the nitrogen, ,− this research focused on bidentate iminophosphines of the type in Chart , as they have shown potential as ligands in homogeneous catalysis. , This type of iminophosphine allows the modulation of the steric crowding around the metal center through variation of the substituents on the imine nitrogen . This is very useful for controlling the catalytic activity and selectivity of complexes containing these ligands . While a growing number of transition metal complexes of iminophosphines have been reported, ,− there has not been a large amount of work published examining platinum complexes containing these iminophosphines.…”

“…12 This is very useful for controlling the catalytic activity and selectivity of complexes containing these ligands. 5 While a growing number of transition metal complexes of iminophosphines have been reported, 6,12À18 there has not been a large amount of work published examining platinum complexes containing these iminophosphines. In particular Organometallics ARTICLE iminophosphines with a methyl group attached to the carbon of the imine group are notably rare.…”