10.1039/DT9920001929
The research focuses on the synthesis and reactions of 1,3-bis(diphenylphosphino-lcP)-2-methylallyl complexes of platinum. The purpose of the study was to investigate the prototropic rearrangement and deprotonation reactions of these complexes when complexed to a more labile metal-ligand system such as platinum, as opposed to the relatively inert Group 6 metal tetracarbonyl moiety. The researchers aimed to synthesize new ditertiary phosphine ligands in the complexed state, which can have advantages over traditional methods, such as avoiding the formation of isomers that cannot act as chelating diphosphines. The chemicals used in the process included a variety of platinum complexes with different halogens (Cl, I) and alkyl groups (Me), as well as diphosphine ligands like (Ph2PCH2)2C=CH2 and its derivatives. The conclusions of the research indicated that the complexes could undergo various reactions such as metathesis, isomerization, and deprotonation, leading to the formation of new platinum complexes with different chemical properties. The study also highlighted the importance of chelating diphosphines in coordination and organometallic chemistry, as well as their potential applications in catalysis.
10.1016/S0277-5387(00)00602-1
The research focuses on the preparation and coordination chemistry of R2P(S)NHP(S)R'2 ligands, where R and R' can be various groups such as iPr, Ph, Et, OEt, or OPh. The study aims to understand the influence of different substituents on the ligand's steric and electronic characteristics, as well as its ability to form metal complexes with zinc, palladium, and platinum. The researchers synthesized a series of dithioimidophosphinate and dithioimidophosphonate ligands and characterized their metal complexes crystallographically. They found that the ligands exist with a twisted P-S···P-S arrangement and hydrogen bond in the solid state, with the nature of the R groups influencing the hydrogen bonding. The palladium and platinum complexes showed consistent conformational differences, with PdS2P2N adopting pseudo-boat conformations and PtS2P2N adopting pseudo-chair conformations. The conclusions extend the understanding of dithioimidophosphinates ligands and their metal complexes, highlighting the ability to tune metal selectivity by varying substituents, which has implications for metal extraction processes.
F,
Xi,
Xn
F:Highly flammable;
