(a) Coordination environment of the AgI atoms and ethynide groups in (IV). Symmetry code: (A): x + 1, y + 1, z + 1. The argentophilic Ag⋯Ag distances, shown as thick purple rods, lie in the range 2.70−3.40 Å. Ag atoms are drawn with displacement ellipsoids at 50% probability. H atoms and trifluoroacetate ligands are omitted for clarity. (b) Perspective view of the interconnection between adjacent coordination chains in (IV) showing notable C—H⋯O and C—H⋯F contacts (Table 2).