The crystal structure of <italic>catena</italic>-poly[(1-(4-carboxybenzyl)pyridin-1-ium-4-carboxylato-κ1O)-(μ2-oxalato-κ4 <italic>O</italic>:<italic>O</italic>′:<italic>O</italic>″:<italic>O</italic>‴)dioxidouranium(VI)], C16H11NO10U.

C16H11NO10U, monoclinic, <italic>P</italic>21/<italic>c</italic> (no. 14), <italic>a</italic> = 16.4675(12) Å, <italic>b</italic> = 11.7192(8) Å, <italic>c</italic> = 9.6663(7) Å, <italic>β</italic> = 100.823(2)°, <italic>V</italic> = 1832.3(2) Å3, <italic>Z</italic> = 4, <italic>R</italic> <italic>gt</italic> (<italic>F</italic>) = 0.0277, <italic>wR</italic> ref(F2) = 0.0673, <italic>T</italic> = 170.0 K. [ABSTRACT FROM AUTHOR]