y　Three　porous　heterovalent　cluster　organic　frameworks　Cu-2(H2O)(Cu4I4)(INA)(4)center　dot　solvent　(1),　Cu-2(H2O)(2)(Cu4I4)(2)(INA)(4)(DABCO)(2)center　dot　2DMA　(2)　and　[(Cu-2)(2)(PVBA)(8)(Cu4I4)]center　dot　DMF　(3)　(HINA　=　isonicotinic　acid,　DABCO　=　1,4-diazabicyclo.2.2.2]octane,　HPVBA　=　4-(2-(4-pyridyl)ethenyl)　benzoic　acid,　DMF　=　N,N＇-dimethylformamide,　DMA　=　N,N＇-dimethylacetamide)　have　been　solvothermally　synthesized　and　structurally　characterized.　Crystal　structure　analyses　indicate　that　compounds　1　and　2　are　constructed　from　planar　four-connected　Cu-2(CO2)(4)　secondary　building　units　(SBUs)　and　tetrahedral　four-connected　Cu4I4　SBUs,　while　compound　3　is　composed　of　octahedral　six-connected　Cu-2(CO2)(4)　SBUs　and　tetrahedral　fourconnected　Cu4I4　SBUs.　All　these　frameworks　possess　nano-sized　1-dimensional　channels.　Furthermore,　the　thermal　and　chemical　stabilities,　gas　adsorption　properties　and　iodine　adsorption/release　ability　of　compound　2　have　been　systematically　studied.