Pd/Pt metallacyclopropa[60]fullerene complexes bearing versatile phosphorous ylide ligands; a comprehensive multi-spectroscopic, electrochemistry, theoretical and catalytic studies

The synthesis of new Pd/Pt metallacyclopropa[60]fullerene complexes containing unsymmetrical phosphorus ylides [Ph₂P(CH₂)_nPPh₂ = C(H)C(O)C₆H₄-p-OMe] (n = 1, (Y¹); n = 2, (Y²)) has been reported. The synthesized complexes exhibit different structures, including two P,C- chelated [(η²-C₆₀)Pd(κ²-Y¹)] (1) and [(η²-C₆₀)Pt(κ²-Y¹)] (2) complexes and two P-coordinated [(η²-C₆₀)Pd(Y²)₂] (3) and [(η²-C₆₀)Pt(Y²)₂] (4) complexes with chain structures. Characterization of all compounds was performed by multi-neclear NMR spectroscopies (¹H, ¹³C and ³¹P NMR) and other conventional techniques such as IR, UV-Vis, SEM and cyclic voltammetry (CV) analyses. In this regard, the presence of all characteristic chemical shifts in the IR and NMR spectra proposed the formation of desired products. Also, theoretical studies were used to investigate the nature of metal-ligands in all complexes. In addition, a comparison between the catalytic activity of Pd complexes 1 and 3 was evaluated in the Suzuki-Miyaura reaction of various aryl chlorides with phenylboronic acid, which revealed a meaningful difference between the catalytic activity of complexes 1 and 3.

Monodentate palladium(0)–[60]fullerene complexes of diphosphine ligands as efficient and sustainable nanocatalysts for the Mizoroki–Heck coupling reaction of aryl chlorides

The present article combines fullerene chemistry with phosphine-based Pd catalytic systems to report new palladium(0)–[60]fullerenes as heterogeneous nanocatalysts for C–C bond transformations of aryl chlorides.

Mononuclear palladium(ii) and platinum(ii) complexes of P,C-donor ligands: synthesis, crystal structures, cytotoxicity, and mechanistic studies of a highly stereoselective Mizoroki–Heck reaction

Pallada- and platinacycle complexes exhibit potential orientations in stereoselective transformations and anticancer metallodrugs.