Assembly of Silver(I)−Organic Networks from Flexible Supramolecular Synthons with Pendant Ethynide Arms Attached to a Naphthyl Skeleton

Five new ligands bearing terminal ethynide moieties attached via pendant arms to a naphthyl skeleton have been used in the synthesis of eight silver(I) complexes. In these compounds, the invariable appearance of the μ4 and μ5 ligation modes of the ethynide moiety reaffirms the general utility of the silver−ethynide supramolecular synthons R−CC⊃Agn and Agn⊂CC−R−CC⊃Agn (n = 4, 5) in coordination network assembly, even when the R group is conformationally flexible. Besides the silver−ethynyl and silver−aromatic interactions, several unconventional intermolecular interactions (argentophilicity, anion−π, C−H···π, and CN···π) also make their appearance.