Investigation of the reactivity of the phosphorushydrogen bond in Cp′RuL1L2Cl complexes with diphenylphosphine ligands

Primary and Secondary Phosphane Complexes of Metalloporphyrins: Isolation, Spectroscopy, and X‐ray Crystal Structures of Ruthenium and Osmium Porphyrins Binding Phenyl‐ or Diphenylphosphane

“…However, unlike 2 b , d , complex 6 features a markedly smaller dihedral angle of 68.9° between the two phenyl planes of each axial ligand. The PO distance of 1.634(9) Å is longer than that of 1.607(8) Å in [CpRu{P(OH)Ph 2 }(PHPh 2 ) 2 ]Cl 23b. The OsP distance of 2.369(2) Å is shorter than that in [Os II (tpp)(PPh 3 ) 2 ] (2.418(2) Å) 16…”

Selective Phosphoramidite Cleavage as a Route to Novel Chiral and Achiral Pentacoordinated Nickel(II) PNP Pincer Complexes

“…[19] However, in many cases phosphinite ligands are found in conjunction with the corresponding phosphinous acids PR 2 OH to form R 2 P-O-H···O=PR 2 moieties with very strong and almost symmetric hydrogen bonds of O···O distances as low as 2.40 Å. [20][21][22] …”

Anionic phosph(in)ito (“phosphoryl”) ligands: Non-classical “actor” phosphane-type ligands in coordination chemistry

“…2), and some of their corresponding complexes have been exploited in catalysis [35,88]. The synthesis of these bidentate O−anionic  1 -P−phosph(in)ito ligands can be accomplished by reaction of metal complexes with phosphane oxides [36,[89][90][91][92][93] or mixed anhydrides of phosphinous and acrylic acids [94], by solvolysis of acetylenic phosphane [95], phosphazane [96], chlorophosphane [97] or phosphinite [98,99] complexes, or by treatment of suitable precursors with chlorophosphanes in protic solvents [100][101][102][103]. Deprotonation with an appropriate base of the cis-configured monoanion complex 32, featuring the quasichelating phosphinous acid O−anionic  1 -P−phosphinito unit, R 2 P−O−H•••O−PR 2 , bridged by an hydrogen, is accompanied by a rearrangement to afford the trans-configured complex 33 with two O−negatively charged phosphinito units coordinated to one platinum center (Scheme 16).…”