Transition-metal fluoro compounds containing carbonyl, phosphine, arsine, and stibine ligands

Transition metal bifluorides

“…While warming the complex did not afford a substantial amount of the aryl-F reductive elimination product (16), it did, however, yield significant quantities of the biaryl coupling product (17, 35%). This observation was discouraging, since Ritter and co-workers had previously shown that a Pd IV complex bearing fluorides and aryl ligands could undergo reductive elimination upon thermolysis, to form the desired Ar-F bond [80].…”

Selective Cleavage by Acids of One Metal–Carbon σ‐Bond of a Bis(ortho‐platinated) Triarylphosphane: A 31P NMR trans‐Influence Series Based on the Unit Pt(κ2‐C6H3‐5‐Me‐2‐PPh2)(PPh2‐4‐tol)

“…[37][38][39] [9,44,45] The silver oxide procedure has been used to prepare functionalised σ-alkyl complexes of platinum(II) from cis-[PtCl 2 (PEt 3 ) 2 ] [46] and trans-[PtXRL 2 ] (X = I, R = Me, L = PPh 3 ; X = Cl, R = Ph, L = PMe 2 Ph, PEt 3 ) [44] in the presence of acidic hydrocarbons such as acetone and nitromethane. The 1 H NMR spectrum of complex 8 shows a broad peak assigned to OH at δ = 1.…”

“…[57] Similar bands for κ-NO 2 have been observed in the complexes [Pt(NO 2 ) 2 (cisPh 2 PCH=CHPPh 2 )] [58] and [Pt(en) 2 (µ- [59] and the mode of coordination has been confirmed by X-ray crystallography in the latter. (36) and P(OPh) 3 (37) were isolated, usually as colourless or off-white solids; exceptionally, those derived from o-, m-and p-toluidine were obtained as red or purple solids, probably owing to the formation of organic oxidation products in the presence of traces of the Ag + oxidant. The THF and MeCN salts, 17 and 26, could not be isolated; both isomerised rapidly to the corresponding trans-isomers.…”

Synthesis and reactivity of rhodium fluoro complexes

“…Transition metal complexes bearing a fluoro ligand are increasingly regarded as valuable compounds in organometallic chemistry with unique properties as catalysts or synthetic precursors [1][2][3][4]. Their unusual features can partially be explained by the small size of a fluorine atom and the high electronegativity of fluorine.…”