Assembly of 4-aminosalicyclic acid (H 2 L) and Ag(I) in MeCN/H 2 O gave rise to a novel corrugated sheet polymer {[Ag(HL - )].H 2 O} n . X-ray structural analysis reveals that Ag(I) is coordinated by three different HL - ligands in a distorted trigonal geometry and HL - links three different Ag(I) in a μ 3 -bridge mode forming a two-dimensional sheet structure with curvature. The separation of the carboxylate-bridged Ag...Ag and the distance of adjacent sheets are 2.7720(6) and 4.24 Å, respectively.