A　series　of　new　3D　coordination　polymers　Ln(2)(BTC)(1.5)(H2O)(DMSO)(Ln=Eu(1),　Gd(2),　Tb(3),　Dy(4),　Ho(5))　(H4BTC　=　1,2,4,5-benzenetetracarboxylic　acid)　have　been　solvothermal　synthesized　by　the　reactions　of　lanthanide　ions　with　1,2,4,5-benzenetetracarboxylic　acid　in　a　DMSO/H2O　solution.　These　compounds　possess　the　same　3D　architectures　based　on　dinuclear　lanthanide　SBUs　{Tb2O4}　linked　by　BTC4-　anions　and　exhibit　unprecedented　3D　topological　nets.　Compounds　1　and　3　are　strong　luminescent　materials　which　display　characteristic　Eu3+　and　Tb3+　emission　bands　in　the　visible　region.　The　magnetic　properties　of　2-5　have　also　been　investigated　through　the　measurement　of　their　magnetic　susceptibilities　over　the　temperature　range　of　2-300　K.　(C)　2010　Elsevier　B.V.　All　rights　reserved.