Zero-valent group 10 metal complexes with a triphosphine ligand, [M(dpmp)2], where MPt, Pd, Ni, and dpmp = bis(diphenylphosphinomethyl)phenylphosphine

Phosphorescent PtAu2 Complexes with Differently Positioned Carbazole–Acetylide Ligands for Solution-Processed Organic Light-Emitting Diodes with External Quantum Efficiencies of over 20%

“…The PtAu 2 structure is stabilized by the formation of four five-membered coordination rings as well as significant Pt–Au interactions. The dpmp ligand adopts a μ 3 -bridging mode to support the linear-arranged Au–Pt–Au backbone instead of forming a six-membered coordination ring Pt­(η 2 - P CH 2 PCH 2 P ‑) through η 2 chelation. , The platinum­(II) center is coordinated by two trans-oriented σ-acetylide carbon and two phosphorus donor atoms with an approximately square-planar geometry, while the gold­(I) center is bound to two phosphorus donor atoms with a P–Au–P angle of 175.03(10)°. Noticeably, the phenyl rings of adjacent PtAu 2 moieties show parallel and face-to-face arrangements with 3.79–3.87 Å distances between the centers of the phenyl rings, implying that significant intermolecular π–π contacts are likely operating, as depicted in Figure b.…”

Facile Synthesis and Molecular Structure of [Ni(PPh2NHPh)4]

“…Tetrakis-phosphine complexes of nickel(0) are usually synthesised either from labile nickel(0) complexes [7], such as [Ni(COD) 2 ] (COD = cyclooctadiene) [8, 9,10,11,12], [Ni(CO) 2 (COD)] [13 b], [Ni(CO) 2 L 2 ] (L = phosphine), or by reduction of an appropriate nickel(II) complex, such as NiCl 2 or [NiX 2 L 2 ] (X = Cl, Br, L = phosphine) [4 b, 13, 14] with for example zinc dust or NaBH 4 [15] in the presence of phosphine. As [NiCl 2 L 2 ] (L = phosphine) can be prepared by displacement of water from the readily available NiCl 26 H 2 O by the corresponding phosphine [13 b], we assumed that this synthetic approach could also be employed in the preparation of nickel(0) phosphine complexes.…”

Dangling phosphine complexes: Phosphine exchange in pentacarbonyl tungsten complexes of bis(diphenylphosphinomethyl)phenylphosphine

“…31 P NMR assigned to 10b: d P(a,c) 3.1, d, d P(b) À38.4, t; 2 J P(a,c,) P(b) ¼ 73.6. Complex 10b was previously prepared by refluxing dpmp with W(CO) 6 in toluene over 30 h [15].…”