Stepwise construction of Au_4Ag_2Cu_2 coinage rings supported by linear tetraphosphine ligands

摘要

Coinage clusters: A stepwise construction with tetraphosphine ligands (dpmppm) afforded a series of octanuclear coinage rings (see figure); the shape and size of the rings vary depending on the element M and the counteranions. The {Au~I_2Ag~ICu~I}_2 ring notably incorporates a BF_4- anion in the open pocket surrounded by phenyl groups, even in solution.