Synthesis, characterization, reactivity and theoretical studies of ruthenium carbonyl complexes containing ortho-substituted triphenyl phosphanes

Methyl–oxygen bond cleavage in hemilabile phosphine–ether ligand of ruthenium(II) complexes

“…The hemilabile phosphine-ether ligand and its Ru(II) complexes also have received much attention due to their wide-range of utility in homogeneous catalysis [16][17][18]. Studies of the coordination chemistry of the Ru(II) complexes in particular containing hemilabile phosphine-ether ligands are useful in understanding the catalytic activity of this class of compounds.…”

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

“…Replacing the PPh 3 promising results in various alkene hydroformylation reactions. We recently observed that the o-alkyl substituents have significant effects on the activity and selectivity in the rhodium and ruthenium catalyzed hydroformylation of propene [11,12]. However, the Rh and Ru complexes of these ligands could not be crystallized and sometimes were found to be unstable in solution.…”

“…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.…”

New binucleating ligand with two [P,S] chelation pockets on a single phenyl ring: Syntheses and X-ray structures of 1,4-bis(diphenylphosphino)-2,5-difluoro-3,6-bis(methylthio)benzene and of bimetallic complex (CO)3Fe(μ-[(PPh2)(SMe)C6F2(SMe)(PPh2)])Fe(CO)3

“…(2)). Monometallic complexes containing metal carbonyl fragments with [P,S] chelation of (2-thiomethylphenyl)diphenylphosphine ligands have been well documented [26][27][28], but only one complex containing iron tricarbonyl ligated to a neutral [P,S] ligand has been described previously [29]. Compound 3 displays three absorption bands (1996, 1928 (shoulder), and 1905 cm À1 ) in the carbonyl region of the IR spectrum.…”