New framework solids consisting of coordination polymers [Ce(L)(DMA)(H₂O)]_n (1), [Nd(L)(DMA)(H₂O)]_n (2), [Cu₂(OH)(L)]_n (3) and [Cd₂(L)₂(4,4′-bipyridyl)]_n·(CH₃NH₂CH₃⁺)_2n (4) (H₃L = 3,5-(4-carboxybenzyloxy) benzoic acid; DMA = dimethyl acetamide) have been synthesized under hydro(solvo)thermal conditions and characterized by X-ray crystallography. They reveal two-dimensional and three-dimensional network architectures. Thermal analysis (TGA and DTA) features of 1–4 and solid-state variable temperature magnetic susceptibility data of 2 and 3 are reported as well.