Coinage metal(I) clusters based on a flexible P,P′(N,N′)2-ligand: colorful phosphorescence, abnormal thermal quenching behavior and anticounterfeiting application

Unprecedented pseudosymmetric CuI, AgI and AuI clusters with pronounced metallophilic Au–X (X = Cu, Ag, Au) or Ag–Ag contacts have been assembled using 1,2-bis[bis(pyridin-2-ylmethyl)phosphino]ethane (L), an innovative P,P′(N,N′)2- ligand. Its...