Structural Aspects of Palladium and Platinum Complexes With Chiral Diphosphinoferrocenes Relevant to the Regio- and Stereoselective Copolymerization of CO with Propene

High-pressure NMR study of migratory CO-insertion in palladium–methyl complexes modified with Cs-symmetrical 1,4-diphosphines

“…Structural data reported in the literature for the complex (dppb)Pd(NCS)(SCN) showed a bite angle of approximately 92.9° [12]. This value was close to the bite angles reported [18] for several Pd complexes modified with ferrocenyl diphosphine ligands, which ranged between 93°a nd 97°. The crystal structures of the complexes containing the C s -symmetric ligands shown in Fig.…”

Carbonylation studies of Pd-methyl complexes modified with 1,4-Cs-symmetrical diphosphine ligands

“…Apparently, this effect is remarkable, as the bigger isomer distribution in the series (16:1) is observed for 2a. A similar trend has already been reported for chloro methyl Pt complexes modified with (R)-(S)-Josiphos derivatives [16]. The methyl Pd chloro complex derived by (R, S)-BINAPHOS [5] showed the prevalence of the geometric isomer with the methyl trans to the phosphite moiety (ratio M:m = 5:1), reflecting the less trans influence of the P(OAr) 2 group over PAr 2 .…”

Coordination properties of a 2-aryl-1,3,2-dioxaphospholane

“…The range of values for the Pd -C distances is 2.080 -2.102 Å,[57][58][59][60][61][62] and the Pd -C bond distances in 4 of 2.088 (4) and 2.096 (4) Å lie well within this range. The literature Pd -P distances range from 2.274 to 2.327 Å [57][58][59][60][61][62]. The shorter Pd -P bond length in 4 of 2.266 (1) Å is thus again the lowest yet reported, while the longer Pd -P distance in…”