| In this thesis,three N-donor ligands[dipyrazino[2,3-f:2?3?-h]quinoxaline?dpq?,N,N?-bis?4-methylenepyridin-4-yl?-1,4-benzenedicarboxamide?bmpbdca?andN,N?-bis?pyridine-3-yl?thiophenyl-2,5-dicarboxamide(bptdca],three polycarboxylates[5-?4'-carboxylphenoxy?isophthalic acid?H3cpoip?,1,4-cyclohexanedicarboxylic acid?1,4-H2chda?and 5-methylisophthalic acid?H2mip?],have been used as ligands to react with transition metal atoms under hydrothermal conditions.Six new complexes have been synthesized and characterized by IR,elemental analysis,Thermogravimetric analysis?TG?,PXRD and single-crystal X-ray diffraction.The fluorescent and electrochemical analysis properties of some complexes have been studied.1.Using chelating N-donor ligand?dpq?as main ligand and H3cpoip as co-ligand to assemble with Cu2+,Co2+,Ni2+and Zn2+,four transition metals complexes with different structural characters have been hydrothermally synthesized and structurally characterized?1-4?.The influence of the metal ions on the structures of complexes has been investigated.Single crystal X-ray diffraction analysis reveals that complex 1 is a 0 dimensional structure and Hcpoip shows mono-dentate coordinated mode.Complex 2 shows one dimensional structure based on single metallicc node and Hcpoip shows tri-dentate coordinated mode.Complex 3 is a three dimensional structure based on bimetallicc node and Hcpoip shows four-dentate coordinated mode.Complex 4 is a one dimensional structure which is similar with 2.In the above complexes,dpq show chelating coordinated mode.Cu2+,Co2+,Ni2+and Zn2+show 5,6,6 and 5 coordianted modes.Different metal ions led to the differecences of coordinatied features of cpoip and the title complexes.[Cu?Hcpoip??dpq??H2O?2]?1?[Co?Hcpoip??dpq??H2O?]·H2O?2?[Ni3?cpiop?2?dpq?3?H2O?4]·4H2O?3?[Zn?HL??dpq??H2O?]·H2O?4?The electrochemical analyses for H2O2,NO2-and BO3-of 1-3,fluorescent sensingbehaviors for metal ions of 4 have been systematically investigated.2.Using N,N?-bis?4-methylenepyridin-4-yl?-1,4-benzenedicarboxamide?bmpbdca?and N,N?-bis?pyridine-3-yl?thiophenyl-2,5-dicarboxamide?bptdca?as N-donor ligands,1,4-cyclohexanedicarboxylic acid?1,4-H2chda?and 5-methylisophthalic acid?H2mip?as co-ligands,to assemble with Ni2+and Cu2+,two transition metals complexes with different structural characters have been hydrothermally synthesized and structurally characterized?5-6?.Complex 5 is a?4,4?-connected two dimensional network based on single metal nodes and finally form a three dimensional supramolecular framework derived from interpenetrated two dimensional networks.Complex 6 shows two dimensional network based on bimetal nodes.[Ni?bmpbdca??chda??H2O?2]·2H2O?5?[Cu?bptdca??mip?]·3H2O?6?The electrochemical analyses for H2O2,NO2-and BO3-of 5-6,fluorescent sensing behaviors for metal ions and organic solvents of 4 have been investigated. |
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