Three-dimensional　porous　framework　{[Ni3(BPTCA)　2(H2O)2][Ni(H2O)6]　·10H2O}n　(1)　was　synthesized　by　using　the　4,　4′-bipyridine-2,　2′6,　6′-tetracarboxylic　acid　anion　(BPTCA-4)　as　building　block　under　hydrothermal　conditions.　The　structural　analysis　revealed　this　complex　has　a　NbO　topology.　Unexpectedly,　1　has　an　anionic　framework　with　10.9×8.7　Å　rectangle　channels,　and　the　cationic　[Ni(H2O)6]2+　species　serve　as　guest.　In　addition,　thermogravimetric　analyses　proved　1　can　keep　its　crystalline　nature　even　at　300　°C.　The　nitrogen　adsorption　and　magnetic　properties　of　1　were　also　investigated.　Copyright　©　2014　WILEY-VCH　Verlag　GmbH　&　Co.　KGaA,　Weinheim.