P-Chiral phosphines are a class of chiral ligands that are characterized by the presence of a phosphorus atom that is stereogenic (chiral). This means that the phosphorus center can exist in two non-superimposable mirror image forms, leading to different spatial arrangements of substituents attached to the phosphorus atom. In the context of coordination chemistry and catalysis, P-chiral phosphines are particularly valuable because they can impart stereochemical information to reactions, thereby enabling asymmetric synthesis.
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