| Schiff base has highly flexiblility in the formation of complexes because of it has multi-coordinated atoms.It can coordinate with transition metals to form stable complexes,which can certainly apply in biological activity,catalytic activity,photo-chemistry,magnetism and electrochemistry.Therefore,we designe and synthesize four Schiff bases derived from 3,5-di-tert-butylsalicylaldehyde and amantadine,rimantadine,memamtine,or 3-amino-adamantanol.Then,using these four Schiff ba-ses as ligands,ten complexes were synthesized with copper,cobalt and zinc atoms.Series of characterizations and corresponding properties of the compounds were car-ried out.The main contents are as follows:1、Firstly,four Schiff bases L1L4:C25H37NO（L1）,C27H41NO（L2）,C27H41NO（L3）,C25H37NO2（L4）were obtained by dehydration condensation of amantadine,rimantadine,memamtine,and 3-amino-adamantanol as raw materials with 3,5-di-tert-butylsalicylaldehyde in ethanol solution,respectively.Then,the Schiff base ligands react with copper chloride dehydrate,cobalt chloride hexahydrate,and anhydrous zinc chloride under the addition of sodium hydroxide,respec-tively.Ten corresponding metal complexes were obtained:C50H72CuN2O2（1）,C50H72CoN2O2（2）,C50H72ZnN2O2（3）,C54H80CuN2O2（4）,C54H80CuN2O2（5）,C54H80CoN2O2（6）,C54H80ZnN2O2（7）,C50H72CuN2O4（8）,C50H72CoN2O4（9）,C50H72ZnN2O4（10）.2、The powder of the complexes 110 were cultured by solvent evaporation method and gas phase diffusion method.The regular shape and no defect crystal of com-plexes 13 and 57 were obtained.The X-ray single crystal diffraction of these complexes were carried out and obtained their crystal structures after analyzing the data.It is proved that the complexes are mononuclear four-coordinated,which is consistent with the expected structure.3、Schiff bases and their corresponding complexes were characterized by melting point,elemental analysis,IR,UV,1H NMR,and X-ray powder diffraction.The molar conductance of the complexes was also measured.4、The antibacterial properties,electrochemical properties,and luminescence prop- erties of L1L4 and 110 were tested.It was found that the inhibitory effects of ligands and complexes on Staphylococcus aureus,Escherichia coli and Bacillus subtilis were not as the expected.It is found that there are some differences in peak potential when use diverse solvents to experiment electrochemical proper-ties by cyclic voltammetry.The L2,3,7,and 10 demostrate good luminescent properties in the fluorescence spectrum experiment. |
