In　the　crystal　structure　of　the　title　coordination　polymer,　{[Zn-2(C17H8O10)(C3H7NO)(2)]center　dot　C3H7NO}(n),　the　molecular　building　block　(MBB),　viz.　{Zn-2(CO2)(4)(C3H7NO)(2)},　comprises　two　zinc　atoms,　each　bridged　by　three　carboxylate　groups.　These　two　Zn　atoms　exhibit　different　coordination　environments:　a　distorted　coordination　intermediate　between　trigonal-pyramidal,　and　square-pyramidal　formed　by　the　two　coordinated　dimethylformamide　molecules　and　three　carboxylate　groups,　and　a　distorted　tetrahedral　coordination　defined　by　carboxylate　groups　of　which　three　are　bidentate　bridging　and　the　fourth　is　a　monodentate　ligand.　Thus,　each　ligand　connects　four　MBBs,　forming　the　three-dimensional　polymer.