Crystal structure of 4-(4′-(pyridin-4-yl)-[1,1′-biphenyl]-4-yl)pyridin-1-ium catena-poly[{5-carboxy-4′-methyl-[1,1′-biphenyl]-3-carboxylato-κ2O,O′}-(μ2-4′-methyl-[1,1′-biphenyl]-3,5-dicarboxylato-κ4O,O′:O′′,O′′′)lead(II)], C52H40N2O9Pb

C52H40N2O9Pb, triclinic, P1̅ (no. 2), a = 10.3025(4) Å, b = 14.1740(9) Å, c = 16.0428(9) Å, α = 115.835(6)°, β = 97.680(4)°, γ = 90.493(4)°, V = 2083.7(2) Å3, Z = 2, Rgt(F) = 0.0342, wRref(F2) = 0.0612, T = 293(2) K.