Two　isostructural　metal-organic　frameworks　formulated　as　[Gd-7(L)(4)(mu(3)-OH)(8)(HCOO)(DMF)(6)(H2O)]center　dot　DMF　center　dot　H2O　(1)　and　[Tb-7(L)(4)(mu(3)-OH)(8)(HCOO)(DMF)(5)(H2O)]center　dot　DMF　center　dot　H2O　(2)　(H3L=3,5-di(4＇-carboxylphenyl)benzoic　acid)　have　been　synthesized　and　structurally　characterized.　The　building　blocks　of　the　structures　are　the　heptanuclear　lanthanide　clusters　of　the　dicubane-like　type　[Ln(7)(mu(3)-OH)(8)](13+)　(Ln=Gd,　Tb)　which　are　formally　assembled　into　porous　three-dimensional　networks　through　the　linkage　of　L.　Variable　temperature　magnetic　studies　down　to　2　K　reveal　antiferromagnetic　interactions　in　complex　1.　Furthermore,　the　fluorescence　property　of　2　was　also　studied.