| Many researches have focused on the design,syntheses,crystal structures and properties of complex crystal material in recent years due to their particular topologies and some potential applications such as photochemistry,magnetism and electrochemistry.14 new coordination complexes have been synthesized.The complexes were characterized by X-ray single crystal diffraction instrument,the fluorescent or electrochemical properties or magnetic properties of the 14 complexes have also been studied.The main results are as follows:1.Seven complexes of[La(HL1)3(H2O)5]·3H2O(1),[Sm(HL1)3(H2O)5]·3H2O(2), [Eu(HL1)3(H2O)5]·3H2O(3),[Tb(HL1)3(H2O)5]·3H2O(4),[Dy(HL1)3(H2O)5]·3H2O(5), [Mn2(L1)2(phen)2(H2O)4]·2H2O(7),[Co(HL1)2(H2O)4]·H2O(8) were synthesized by means of solvent way.The complexes of[Mn(L1)(H2O)4](6),[Zn2(L1)2(H2O)5]·0.5H2O(9), [Zn(L2)(H2O)2](10),[Cd(L2)(H2O)2](11),[Mn(L2)(H2O)2](12),[Co(L2)(H2O)2](13), [Mn(L2)(H2O)]·H2O(14) were synthesized by means of hydrothermal way.2.The crystal structures of the 14 complexes have been characterized by X-ray single diffration instrument.The crystal structures of 1-5 are isostructrue and belong to triclinic crystal system,space group is P(?).The complexes above have formed the distorted tri-capped trigonal prismatic geometry with lanthanide ions as the central ions. Complexes 6-14 formed distorted octahedral configuration with the central ions of Zn(Ⅱ), Cd(Ⅱ),Mn(Ⅱ) and Co(Ⅱ).6-9 were constructed by N-acetic-6-oxygen-nicotinic acid. 10-13 were built by N-acetic-5-oxygen-nicotinic acid exhibiting a rutile(4.62)2(42.610.83) topology structure with left- and right-handed helical chains.14 is fluorite topology structure with 4.9×7.0(?) channel. 3.The fluorescent properties of complexes 1-5 and 10,11 were investigated by means of the fluorescent spectrophotometer.The results shows the emission spectrum of the complexes appear the characteristic peaks of the lanthanide metals.The ligand fluorescent emission is not observed among the luminescent of the four complexes,indicating an efficient energy transfer from the ligand to the Ln(Ⅲ) ions.The transition intensity changes in the order of Tb3+＞Dy3+＞Eu3+＞Sm3+.Complex 10 and 11 display strong fluorescent than the ligand.4.The cyclic voltammetric behavior of complexes 12-14 was studied.The cyclic voltammogram of complexes 12-14 have grossly identical features with two couples of redox peaks.The oxidation process has a large value for the cathodic to anodic peak separation,and deviates from unity for the peak cathodic and peak anodic current rations, ipc/ipa.Therefore,the electron transfer of the complexes in electrolysis reaction is irreversible.5.The magnetic susceptibility of 12-14 versus temperature was studied.The results show there are weak ferromagnetic interactions between two manganese(Ⅱ) ions in complexes 12 and 14,and weak antiferromagnetic interactions between two cobalt(Ⅱ) ions in the complex 13.
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