A straightforward synthetic route to symmetric bis(acetylide) metallates of the coinage metals

A novel generalized synthetic procedure to bis(acetylide) metallates(I) of the coinage metals [K(THF)n(18-crown-6)][R-C≡C-M-C≡C-R] (M = Cu, Ag, Au) with varying substituents R (R = Fc, Ph, tBu) was developed.176