Synthesis, Structure, and Properties of the .eta.2-P.intrsec.O-Chelated Mono(ether-phosphine)ruthenium Complex [Cp*Ru(CO)(P.intrsec.O)][BPh4]

Amidophosphine‐stabilized palladium complexes catalyse Suzuki–Miyaura cross‐couplings in aqueous media

“…The cis atoms define angles of P1–Pd1–N1 = 94.14(12)° and Cl1–Pd1–Cl2 = 87.32(4)°, and there is a distortion of ideal square‐planar geometry resulting from the ring strain of the six‐membered metallacycle Pd1–P1–C1–C2–C7–N1. The Pd1‐P1 bond distance in 7 of 2.2522(10) Å is similar to those observed in phosphine and phosphite complexes of Pd(II) (2.2–2.4 Å) and in neutral complex 1 (2.2543(9) Å) . The value of Pd1‐N1 bond length being 2.097(3) Å defines a strong coordination of N to Pd atom and is comparable to those found in similar monomeric N‐coordinated Pd complexes (2.073–2.155 Å) .…”

Structure and Reactivity of Coordinatively Unsaturated Half‐Sandwich Iron, Ruthenium and Osmium Complexes

“…[25] Almost simultaneously, Chaudret and co-workers also reported the synthesis of these compounds by reduction of the Ru III precursors [Cp*RuCl 2 (PR 3 )] (R ϭ iPr, Cy, tBu), usually generated in situ by reaction of [Cp* RuCl 2 ] n with the appropriate amounts of phosphane and Zn in a variety of solvents. [26] The complexes [Cp*RuCl(PMetBu 2 )], [27] [Cp*RuCl(PPhiPr 2 )], [28] [Cp*RuCl(PMeiPr 2 )], [29] and [Cp*RuCl(η 1 -(P)-PCy 2 CH 2 CH 2 OMe)] (bearing a pendant ether group) [30] have also been synthesized by following any of the methods outlined above. Only bulky phosphanes with a sufficiently large cone angle allow the isolation of these 16-electron complexes.…”

Palladium(II) complexes of Y,C,Y‐chelated phosphines: synthesis, structure, and catalytic activity in Suzuki–Miyaura reaction

“…These ligands possess a variety of the coordination modes in the transition metal complexes; the bidentate or tridentate chelate rings containing metal-O bonds derived from elimination of methyl groups. [3,5,6] In contrast, corresponding P-N chelating ligands are widely used in the chemistry of transition metals. In general, the discussed functionalized phosphines form six-and five-member metal-donor rings as the result of P ∩ N-chelation to transition metal centre.…”