Poly[(2,2′-bipyridine-κ²N,N′)(μ₃-2,4,6-trimethyl­isophthalato-κ⁵O¹,O^1′:O¹:O³,O^3′)cadmium]

In the crystal structure of the polymeric title complex, [Cd(C₁₁H₁₀O₄)(C₁₀H₈N₂)]_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.