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Four silver(I) complexes,namely [Ag2(bpe)2](bdc)·8H2O (1),[Ag2(bpe)2(da)]·4H2O (2),[Ag4(bpe)3(bptc)]·9H2O (3) and Ag(bpe)2(bpdc)2 (4),have been successfully synthesized by the reactions betweenAgNO3,1,2-bis(4-pyridyl)ethane (bpe) and different carboxylic acids,including 1,3-benzenedicarboxylic acid(H2bdc),diphenic acid (H2da),3,3’,4,4’-biphenyltetracarboxylic acid (H4bptc),and2,2’-bipyridine-3,3’-dicarboxylic acid (H2bpdc).All four compounds were characterized by elemental analysis,IRspectra,and single crystal X-ray diffraction.In (1),the Ag(I) atoms,in linear geometry,are joined into 1-D infinitecationic bpe-silver chains,and discrete bdc2- anions compensate the charge of the crystal structure.In (2),the Ag(I)atoms,adopting tetrahedral and trigonal geometries,are linked by bpe and da2- ligands into neutral double chains.In (3),the Ag(I) atoms,in T-shaped and linear environments,are coordinated by bpe and multidentate bptc4- ligandsto construct a 2D network.And in (4),the Ag(I) atoms,with trigonal and T-shaped coordination geometries,arecoordinated by bpe and bpdc2- ligands to build up a 3D framework.The different anions play different andimportant roles in directing the final crystal structures.