Complex 1 crystallizes in the triclinic form with the space group P-1, and Cu(1) is two-coordinated by two N atoms of bibp, Cu(2) is three coordinated from two N atoms of bibp and one water molecule. <...> Complex 2 crystallizes in the triclinic form with the space group P-1; the copper ions are monovalent and twocoordinated by two N atoms of bib. <...> The bdc and btc ligands are not coordinated with Cu ions, but play important roles in the generation of a 3D supramolecular structure of complexes 1 and 2 via weak interactions respectively. <...> Supramolecular architectures constructed via coordination bonds or weak interactions have achieved remarkable attention in recent years due to not only their intriguing structure, but also their potential application in gas sorption, ion exchange, magnetism, catalysis, etc. [ 1—4]. <...> The choice of metal ions with various coordination geometry and ligands with different binding preference is generally of primary considerations [ 5—8]. <...> The divalent copper ion is usually chosen as a center ion because its coordination number could vary from four to six, and it is easily deoxidized to monovalent copper ions under hydro(solvo)thermal synthesis conditions [ 9—11]. <...> Recently, the rigid bis(imidazole) ligands such as 1,4-bis(1-imidazol-1-yl)benzene (bib) and 4,4-bis(1-imidazol-1-yl)biphenyl (bibp) have been reported in the construction of interpenetrating metal-organic architectures [15—17 ]. <...> On the basis of these considerations, we selected divalent copper ions, terephthalic acid (H2bdc), benzene-1,3,5-tricarboxylic acid (H3btc), 1,4-bis(1-imidazol-1-yl)benzene (bib), and 4,4bis(1-imidazol-1-yl)biphenyl (bibp) as building blocks. <...> All chemicals were reagent grade commercial samples and were used without further purification. <...> After the mixture was cooled to room temperature, a yellow crystal of 1 was obtained. <...> After the mixture was cooled to room temperature, a yellow crystal of 2 was obtained. <...> Crystal data and structure refinement are summarized in Table 1. <...> Selected bond Table 1 Crystallographic data and structure refinement parameters for complexes 1 and 2 Complex 1 2 Chemical formula Formula weight Crystal system Space group a, b, c, Е <...>