Diverse Intermolecular Interactions in Metal−Organic Frameworks Constructed with the New Supramolecular Synthon Ag_n−L−Ag_n(n = 4, 5) (H₂L = 2,2′-Bis(prop-2-ynyloxy)biphenyl)

The three silver(I) coordination polymers [(Ag₂L)(AgNO₃)₆(H₂O)] (1), [(Ag₂L)_0.5(AgCF₃CO₂)₄(H₂O)₂] (2), and [(Ag₂L)(AgCF₃CO₂)₇(CH₃CN)₃(μ₂-H₂O)] (3) have been constructed from the flexible multifunctional dianionic ligand L (H₂L = 2,2′-bis(prop-2-ynyloxy)biphenyl), providing experimental evidence of coexisting uncommon intermolecular interactions (cation−π and π−π in 1; cation−π and anion−π in 2; CN···π and C−H···π in 3) that stabilize their framework structures.