Poly[[μ2-acetato-aquadi-μ3-isonicotinato-dysprosium(III)silver(I)] perchlorate]

In the title three-dimensional heterometallic complex, {[AgEr(C(6)H(4)NO(2))(2)(C(2)H(3)O(2))(H(2)O)]ClO(4)}(n), the eight-coordin-ate Er(III) ion adopts a distorted bicapped trigonal-prismatic geometry, being coordinated by four O atoms from four different isonicotinate ligands, three O atoms from two different acetate ligands and one O atom of the water mol-ecule. The two-coordinate Ag(I) ion is surrounded by two N atoms from two different isonicotinate anions in a slightly bent configuration. These building blocks are connected by bridging isonicotinate and acetate ligands, generating a three-dimensional network. Ths structure is consolidated by O-H⋯O hydrogen bonding between the coordinated water mol-ecule and a carboxyl-ate group of the acetate ligand. The perchlorate anion is disordered over two sites with site-occupancy factors of 0.526 (13) and 0.474 (13), while the methyl group of the acetate ligand is equally disordered over two sites.