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Six new metal-organic supermolecules of a flexible bis(beneimidazole)ligand L,namely,[Co(L)(CH3OH)(CH2COO)]·CH3OH(1),[Cd(L)I2]·2CH3OH(2),[Zn(L)2](3),[Cd2(L)2(NO3)2(CH3OH)2(CH2COO)2]·2CH3OH(4),[Zn(L)(TPA)]·2DMF·2H2O(5),and [Zn(L)(IPA)]·H2O(6)have been synthesized and characterized.Very interestingly,in those complexes,the coordination configurations of all used metal ions are limited to the tetrahedral geometry,and the unique frameworks are sequentially assembled by those tetrahedral supramolecular nodes of mononuclear helical units connected through hydrogen-bonding.[1-3] Compounds 1 and 2 are chiral mononuclear complexes whose meso-structures consist of mono-stranded helicates.Compound 3 shows a unique CdSO4-like architecture sequentially assembled by tetrahedral supramolecular nodes of mononuclear double helicates.Compound 4 is a novel meso dual-core structure.Polymers 5 and 6 exhibit two-dimensional meso-frameworks composed of nonhelical chiral chains linked by metal nodes.This work represents the construction of mesosupermolecules based on the metal-induced helicand L.