{N-alkyl-N-[pyridin-2-ylmethylene] amine}dichloro palladium(II) complexes: synthesis, crystal structures and evaluation of their catalytic activities for ethylene polymerization

Palladium(II) Pyridinecarboxaldimine Complexes Derived from Unsaturated Amines

“…The palladium atom assumes a slightly distorted square planar configuration with Pd-N distances of 2.111(7) Å (pyridine) and 2.025(6) Å (imine), respectively. Similar bond distances have been reported recently for related complexes [31][32][33][34][35][36][37]. The imine C(8)AN(9) distance is 1.283(11) Å is in the range of accepted carbon-nitrogen double bonds [38].…”

Geometry Constrained N-(5,6,7-Trihydroquinolin-8-ylidene)arylaminopalladium Dichloride Complexes: Catalytic Behavior toward Methyl Acrylate (MA), Methyl Acrylate-co-Norbornene (MA-co-NB) Polymerization and Heck Coupling

“…consistent with the proposed structures of the palladium complexes. Moreover, the VC=N stretching vibration absorption underwent a blue shift at around 1577 cm −1 in the FT-IR spectra of the palladium complexes, which is consistent with the reported data [49,50]. The palladium complexes are highly stable in the solid state as well as for several months in their solutions in haloalkanes (dichloromethane and chloroform), dimethylacetamide (DMA), dimethylformamide (DMF), toluene and acetonitrile.…”

Olefin oligomerization, homopolymerization and copolymerization by late transition metals supported by (imino)pyridine ligands

“…The vast majority of 2-organylimino-pyridyl ligands are straightforwardly prepared by condensing 2-acetyl or 2-formyl-pyridine systems with an equivalent amount of the proper amine [13][14][15][16][17][18] or aniline [2,3,[5][6][7]16,[19][20][21][22][23][24][25][26][27][28][29][30], possibly in the presence of an acid cocatalyst (Scheme 2a). The synthesis of 6-organyl-2-iminopyridyl ligands generally requires a more complex procedure and the Schiff-base condensation step just concludes the synthetic path.…”