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The thesis reports two new aminodicarboxylic acids:N,N’-bis（3,4-methylenedioxybenzyl）ethyldiamine-N,N’-diacetic acid（H2L1）and N,N’-bis（2,4-dichlorobenzyl）ethyldiamine-N,N’-diacetic acid（H2L3）.We synthesis seven kinds of Cu（Ⅱ）complexes by using H2L1,H2L2,H2L3 H2L4,Im,bpy and bix（H2L2 = N,N’-bis（benzyl）ethyldiamineN,N’-diacetic acid,H2LA=2-phenylethylamine-N,N-diacetic acid,Im = imidazole,bpy = 4,4’-bipyridyl and bix = 1,4-bis（imidazole-l-yl-methyl）benzene）.All of the complexes（CuL1·Im（C1）,（CuL1）2bix（C2）,（CuL1）2bpy（C3）,（CuL2）2 bix（C4）,（CuL3）2bix（C5）,（CuLA）2bix（C6）,（CuLA）2bpy（C7））have been characterized by X-ray diffraction.The center Cu（Ⅱ）of complexes are bonded to five atoms,to form a tetragonal pyramid.CI is a monuclear compound,C6 and C7 are coordinated polymer, and others are dinuclear compounds.The Electrochem of the complexes（C2,C3,C6 and C7）have been investigated. Cyclic voltammograms for the C2 to C7 are similar and involve an irreversible redox process;C2 have a lower cathodic peak potential than C3,and C6 have a lower cathodic peak potential than C7.The SOD activities of the complexes（C1,C2,C3,C4 and C5） have also been determined in DMF solution by NBT-illumination method,and the results indicate that all the complexes possess SOD activity.
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