Helically Chiral Pd(Ii) Complexes Containing Intramolecular Pdmidline Horizontal Ellipsispd Metallophilicity As Circularly Polarized Molecular Phosphors

Carbon-centred chirality of the pincer-type cyclometalated ligands is transferred to the helical chirality of dinuclear and tetranuclear Pd(ii) arylacetylide complexes, and hence phosphorescence with quantum yields up to 50% and dissymmetry factors in the 10(-3) scale from the metal-metal-to-ligand charge-transfer excited states has been recorded in diluted solutions.