A trefoil-like two-dimensional (2D) C 3v symmetric organic [12]-imidazolium cation H 12 – 2 (PF 6 ) 12 featuring three [4]-imidazolium macrocycles was synthesized in three steps. The reaction of a dodecakis H 12 – 1 (PF 6 ) 12 imidazolium salt with Ag 2 O resulted in the formation of a hexanuclear Ag I dodecacarbene assembly [Ag 6 ( 1 )](PF 6 ) 6 . Upon UV irradiation, the photodimerization of the cinnamic ester pendants of [Ag 6 ( 1 )](PF 6 ) 6 led to the generation of a trefoil-like complex [Ag 6 ( 2 )](PF 6 ) 6 containing three closed metallacycles. Removal of metal ions allowed for the synthesis of the target molecule. All complexes were fully characterized by NMR spectroscopy ( 1 H, 13 C{ 1 H} and 2D NMR) and high-resolution electrospray ionization mass spectrometry (HR-ESI-MS). A new trefoil-shaped molecular architecture consisting of three macrocyclic tetrakis-imidazolium subunits surrounding a phenyl ring was constructed.