用特定的3d-4f或3d-3d异金属结构单元作为磁性（和光学）基元,通过桥基配体桥联自组装成配位聚合物或分子聚集体。3d-3d顺磁异金属配位聚合物容易达到亚铁磁有序；3d-4f顺磁阳离子间的铁磁交换有利于分子纳米磁体克服量子隧穿效应；引入抗磁性的锌离子到稀土分子纳米磁体体系，可获得荧光分子纳米磁体；采用手性配体使分子（纳米）磁体结晶于极性点群，附加上铁电性，也可实现多功能化，得到多铁性分子材料，甚至多铁性荧光分子材料。进一步研究同分异构体以及‘对称性破缺’单晶-单晶可逆相变等现象，实现磁性、铁电性等相关性质的化学调控；找到定向合成新型异金属分子（纳米）磁体和多功能分子材料的途径和规律，研究其结构和物理性质的相关性。深入研究本课题，不但能获得一系列结构新颖、性能突出的异金属分子（纳米）磁体和多功能分子材料，而且可以丰富配位化学、磁化学、光电化学、物理化学以及固相材料化学等相关学科的内容。

With specific 3d-4f or 3d-3d heterometallic subunits as magnetic (and optical) components, a series of coordination polymers or molecular aggregates will be designed and self-assembled through the coordination of the bridge ligand to these heterometallic subunits. 3d-3d paramagnetic heterometallic coordination polymers are easily reached ferrimagnetic ordering; ferromagnetic exchange between 3d-4f paramagnetic cations favors molecular nanomagnets to overcome quantum tunneling effect; the introduction of diamagnetic zinc(II) ions to the lanthanide(III) molecular nanomagnet system, it is possible to obtain fluorescent molecular nanomagnets; the use of chiral ligands allows molecular (nano) magnets to crystallize at the polar point group, adding ferroelectricity, so that they can also be multifunctionalized to obtain multiferroic molecular materials, even fluorescent multiferroic molecular materials. Chemical regulation of the magnetic, ferroelectric and other related physical properties will be achieved through further studies of their isomers and the 'symmetry breaking' crystal-crystal reversible phase transition phenomenon. New approaches and rules for directional syntheses of novel heterometallic molecular (nano) magnets and multifunctional molecular materials will be discovered, and the correlation between their crystal structures and physical properties will be investigated. Through in-depth study of this topic, not only can a series of new heterometallic molecular (nano) magnets and multifunctional molecular materials with novel structures and outstanding performances be obtained, but also may the development of many related disciplines such as coordination chemistry, magnetism chemistry, photo-electron chemistry, physical chemistry and solid-phase material chemistry be accelerated.