| Compared with traditional magnetic materials,molecule-based magnetic materials have better performance on data processing,information transmission and device integration,which lead them to be potential candidates on molecular switches,high-density data storage materials and multifunctional materials.Notably,cyanide-bridged molecular magnetic materials have been explored intensively because of their optical swithes properties and slow relaxation behaviors.At the moment,designing and synthesizing molecular-based magnets with light/heat-induced spin crossover complexes and electron transfer compounds is one of the research subjects of great concern.In this thesis,we used different precursors to synthesize several[FeII（R）（CN）3]building blocks.Next,a series of prussian blue analogues（PBAs）were synthesized by using the[FeII（R）（CN）3]building blocks,in which complexes 4,5,8,and 11 exhibiting spin crossover behavior.More details are as follows:Using KTp,KpzTp,Tpp and Tpm as precursors,a series of[FeII（R）（CN）3]building blocks have been synthesized.In addition,the structure of（PPh4）2[（TpmBF3）FeII（CN）3]（1）,and（Et4N）[（Tpp）FeII（CN）3]（2）is characterized by X-ray single crystal measurement.Six polynuclear FeII clusters{[（Tpp）FeII（CN）3]}4{[FeIITpp]3（PF6）2}·H2O（3）,K[Fe8（μ-CN）12（Tp）4（Tpp）4]（PPh4）（PF6）2·8DMF（4）,K[Fe8（μ-CN）12（pzTp）4（Tpp）4]（PPh4）（PF6）2·8DMF·H2O（5）,[(Fe8（μ-CN）12（Tpms）4（Tpp）4]·8DMF·3H2O（6）,{[（TpmBF3）FeII（CN）3]}4{[FeII（Tpp）]4·MeCN}（PPh4）（ClO4）·6DMF·2H2O（7）and{[（pzTp）Fe（CN）3]4[Fe（TppO）]4}（PPh4）（PPh4）（PF6）2·12DMF·2H2O（8）with Tpp ligand and its derivatives and[FeII（R）（CN）3]as ligands were synthesized,characterized by single crysral X-ray measurement and MPMS-3 SQUID.Octnuclear complex{[（Tp）FeⅡ（CN）3]}4{[Fe（Tpp）]}4（PPh4）（PF6）3·8DMF·H2O（9）was synthesized and their structures,and magnetic properties were characterized,while changing experimental condition,trigonal bipyramidal complexes{[（pzTp）FeⅢ（CN）3]}3{[FeⅡ（Tpp）]}2（ClO4）（10）and{[(Tp4-Me)FeⅢ（CN）3]}3{[FeⅡ（Tpp）]}2（ClO4）·3DMF（11）were synthesized. |
