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Two new complexes,namely[Cd2(L)(pycy)(Cl)]·2H2O (1) and[Cu(HL)(H2btac)]·2H2O,have been synthesized by the reaction of the corresponding metal salts with mixed ligands including 1-(1H-imidazol-4-yl)-4-(4H-tetrazol-5-yl)benzene (HL),2,6-pyridinedicarboxylic acid (H2pycy) and 1,2,4,5-benzenetetracarboxylic acid (H4btac),and characterized by single-crystal X-ray diffraction,IR spectroscopy,elemental analysis and powder X-ray diffraction(PXRD).Complex 1 crystallizes in triclinic,space group P(1) with a =9.8938(7),b =10.1662(7),c =12.4520(8) (A),α =92.7070(10),β =108.1310(10),γ =105.3230(10)°,V=1136.44(13) (A)3,Z =2,C17H12N7O6ClCd2,Mr =670.59,Dc =1.960 g/cm3,μ =2.037 mm-1,S=1.062,F(000) =648,the final R =0.0532 and wR =0.1651 for 12156 observed reflections (I＞2σ(I)).Complex 2 crystallizes in triclinic,space group P(1) with a =7.3058(8),b =7.4890(8),c =10.8937(12) (A),α =71.3810(10),β =84.134(2),γ =65.745(2)°,V=514.68(10) (A)3,Z=1,C20H16CuN6O10,Mr =563.94,Dc =1.819 g/cm3,μ =1.139 mm-1,S =1.187,F(000) =287,the final R =0.0314 and wR =0.0807 for 3564 observed reflections (I ＞ 2σ(I)).Single-crystal X-ray structural analysis reveals that complex 1 features a trinodal (3,3,4)-connected two-dimensional (2D)net layer with Schl(a)fli symbol (4·6·8)(4·62·83)(62·8) while 2 has a 2D network with 44 sql topology.Moreover,the photoluminescent property of 1 and magnetic property of 2 were also discussed.