Research On The Synthetic Method,Structure And Properties Of Macrocyclic Oxamido Complexes

The main contents of this thesis are as follows:1.A macrocyclic amide carboxylate complex ligand Ni L1 was prepared by the hydrolysis of a macrocyclic amide methyl ester complex NiL in the presence of hydrazine hydrate.This new synthetic method not only simplifies the operation,but also significantly improves the yield of Ni L1.A new coordination polymer{[Ni（Ni L1）（H₂O）₃]·4H₂O}_n with 1D helical structure was achieved from NiL1 and Ni（II）and the structure of which was determined by X-ray single crystal analysis.2.Three new macrocyclic amide complex ligands Ni L2,NiL3 and NiL4 without branches were synthesized from oxalyl diamine dicarboxylate,Ni（II）and ethylenediamine,1,2-propanediamine and o-phenylenediamine,respectively.The preparation method has not been reported in the literature.Crystals of NiL2,[NiL3]·CH₃CH₂OH and[Ni L4]₂·2.5CHCl₃ were obtained and structurally analyzed by X-ray single crystal diffraction.3.The fluorescence,thermogravimetric and electrochemical properties of NiL1,{[Ni（Ni L1）（H₂O）₃]·4H₂O}_n,NiL2,[NiL3]·CH₃CH₂OH and[NiL4]₂·2.5CHCl₃ were studied.4.Theresistiverandomaccessmemoryfunctionof{[Cu（NiL5）（H₂O）₂]·（CH₃）₂CHOH·H₂O}_n was investigated.No study on the resistive random access memory function of macrocyclic oxamido metal complexes has been documented as far as we know.