Poly[(2,2′-bipyridine-κ(2) N,N′)(μ(3)-2,4,6-trimethyl­isophthalato-κ(5) O (1),O (1′):O (1):O (3),O (3′))cadmium]

In the crystal structure of the polymeric title complex, [Cd(C(11)H(10)O(4))(C(10)H(8)N(2))](n), the Cd(II) cation is chelated by one 2,2-bipyridine ligand and two carboxyl groups from two trimethyl­isophthalate (TMIPA) anions, and is further coordinated by one carboxyl­ate O atom from a third TMIPA anion, forming a distorted penta­gonal–bipyramidal geometry. Each TMIPA anion bridges three Cd(II) cations, forming polymeric complex sheets parallel to (001). Weak C—H⋯O hydrogen bonding occurs between adjacent sheets.