Synthesis, Characterization And Porperty Studies Of Macrocyclic Schiff-base Complexes

Two series of macrocyclic Schiff-base complexes have beensynthesized by adjusting reaction temperature, solvent, the mole ratio ofthe reactants and reaction time, Cd₂L1Cl₂（1）, Cd₂L1I₂（2）,Cd₂L1（HCO₂）₂·H₂O （3）, Cd₂L1（CH₃COO）₂（4）, Cd₂L2Cl₂（5）,Cd₂L2I₂（6）,（Cd₂L2（HCO₂）₂）₃·2H₂O （7）, Cd₂L2（CH₃COO）₂（8）,Cd₆（L2）₃（SO₄）₂CO₃（9）, Co₂L1（dca）₂·H₂O （10）, Zn₂L1（dca）₂（11）,Cu₂L1（dca）₂（12）, Zn₄（L1）₂（C₈H₄O₄）·2（ClO₄）（13）,Cu₂L1(C₁₄H₈O₄)·3H₂O （14）, Co₂L1（H₂O）₄Co₂L1（H₂O）_2-（CH-3O）₂·2(C₁₄H₈O₄)（15）, Ni₂L1（H₂O）₄·(C₁₄H₈O₄)（16）,Zn₂L2（C₈H₄O₄）·（CH₃OH）（H₂O）（17）, Ni₂L2（H₂O）₄·(C₁₄H₈O₄)（18）（L1=3,7,15,19-tetraaza-25，26-dihydroxy-11，23-dimethyl-pentacyclic-26-alkane-8-alkene、L2=3，7，15，19-tetraaza-25，26-dihydroxy-11，23- ditertbutyl-pentacyclic-26-alkane-8-alkene）. The complexes have beencharacterized by IR spectra and elemental analysis. The crystal structureshave been determined by X-ray diffraction analysis. Fluorescenceproperty studies indicate that the fluorescence intensity depends much onthe anions and the substitutent of the complexs. The thermal analysisshown that these complexes with high stability.