Synthesis and Characterisation of Nickel(II) Diphenylalkenylphosphine Complexes

Abstract

Nickel(II) phosphine complexes are prepared with a series of diphenylalkenylphosphine ligands and characterised by single crystal X-ray diffraction and spectroscopic techniques.

Mono and dinuclear palladium complexes of o-alkyl substituted arylphosphane ligands: Solvent-dependent syntheses, NMR-spectroscopic characterization and X-ray crystallographic studies

“…The yield of the product was 0.310 g, (78%, 0.30 mmol). 1 (14) o-Cyclohexylphenyldiphenylphosphane (0.4837 g, 1.40 mmol) and PdCl 2 (cod) (0.2001 g, 0.70 mmol) were added in diethyl ether (30 ml). The mixture was stirred at room temperature for 24 h. After filtration of the solution, the isolated product was obtainedas a yellow solid.…”

“…The following dinuclear palladium complexes were prepared: di-l-chlorodichlorobis(o-methylphenyldiphenylphosphane)di-palladium (6), di-l-chlorodichlorobis(o-ethylphenyldiphenylphosphane)dipalladium (7), di-l-chlorodichlorobis(o-isopropylphenyldiphenylphosphane)di-palladium (8), di-l-chlorodichlorobis-(o-cyclohexylphenyldiphenylphosphane)di-palladium (9) and di-l-chlorodichlorobis(o-phenylphenyldiphenylphosphane)di-palladium (10). We also prepared the following mononuclear complexes: dichlorobis(o-methylphenyldiphenylphosphane) palladium (11), dichlorobis(o-ethylphenyldiphenylphosphane) palladium (12), dichlorobis(o-isopropylphenyldiphenylphosphane) palladium (13), dichlorobis(ocyclohexylphenyldiphenylphosphane) palladium (14) and dichlorobis(o-phenylphenyldiphenylphosphane) palladium (15). The X-ray structures of 6, 8-12 and 14 were also obtained.…”

“…The X-ray structures of 6, 8-12 and 14 were also obtained. The lack of control for the formation of complexes with the desired nuclearity has been recognized as a problem in various papers [9,10,[12][13][14][15]. We tested a variety of solvents in order to clarify the role of solvents and to develop a method to produce palladium complexes of o-alkyl substituted arylphosphanes with the desired nuclearity.…”

The synthesis and single-crystal X-ray structures of palladium(II) and platinum(II) complexes of the difluorovinyl and 1-chloro-2-fluorovinyl-substituted phosphines, PPh2(Z-CFCFH) and PPh2(E-CClCFH)

“…In addition, the Raman spectra of 1-4 all display one n(Pd-X) band, consistent with the predictions for a transgeometry. We were unable to find any evidence of the production of cis-isomers, which are known for palladium(II) complexes of the analogous PPh 2 (CH5 5CH 2 ) 2 ligand [13][14][15][16][17].…”

Ligand behaviour of P-functionally substituted organotin halides: palladium(II) and platinum(II) complexes with Ph2PCH2CH2SnCl3

“…The bond distances and angles of the central structural element [P(Cl)PdCl 2 Pd(Cl)P] are in good agreement with those of comparable phoshine complexes of palladium [13], e.g. [(n-PrPh 2 P)PdCl 2 ] 2 [14].…”