【摘要】 以5,6-二胺-1,10-菲罗啉与2,6-吡啶二甲酸缩聚合成得到一种新的含邻菲罗啉结构的聚西佛碱,并制备了其相应的与过渡金属离子Ni2+和Fe2+以及稀土离子Nd3+的配合物,通过红外光谱,核磁共振和元素分析等手段对聚合物及其金属配合物的结构进行了表征,并分析和讨论了它们的磁学性能.结果表明,这一类金属配合物在低温区,磁化率倒数与温度的关系不服从居里-外斯定律,存在着铁磁耦合,其中聚合物的镍和钕的配合物是软铁磁体,而聚合物的亚铁配合物是反铁磁体.更多还原

【Abstract】 A novel poly(Schiff base) containing 1,10-phenanthroline(DAPcPYA) was synthesized by the polycondensation of 2,6-pyridinedicarboxaldehyde(PYA) with 5,6-diamine-1,10-phenanthroline(DAP).Three polymeric complexes were first prepared by the reaction of polymer(DAPcPYA) with NiSO4,FeSO4,and NdCl3,respectively.The structures of the polymer and the complexes were characterized by IR,1H-NMR,and elemental analysis.The magnetic behaviors of these complexes were measured as a function of magnetic field strength(0～4.0×106 A/m) at 5 K and as a function of temperature(5～300 K) at a magnetic field strength of 2.4×106 A/m.The results show that DAPcPYA-Ni2+ and DAPcPYA-Nd3+ were soft ferromagnets,whereas DAPcPYA-Fe2+ exhibited the features of an antiferromagnet.更多还原