| 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??-CN?12?Tp?4?Tpp?4]?PPh4??PF6?2·8DMF?4?,K[Fe8??-CN?12?pzTp?4?Tpp?4]?PPh4??PF6?2·8DMF·H2O?5?,[(Fe8??-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?Fe??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?Fe??CN?3]}3{[Fe??Tpp?]}2?ClO4??10?and{[(Tp4-Me)Fe??CN?3]}3{[Fe??Tpp?]}2?ClO4?·3DMF?11?were synthesized. |
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