自旋交叉（SCO）性质与新型信息存储、光开关、热开关等分子电子器件材料密切相关，具有重要应用前景。多功能自旋交叉材料因不同功能或性质间的协同作用和耦合，可能导致新的物理性质和现象的出现，成为近年来的研究热点。本课题设计合成结构新颖的希夫碱过渡金属配合物，表征其单晶结构，筛选具有自旋交叉和生物活性的双功能配合物，探索制备其纳米结构的合适方法和尺寸、形貌控制手段，分析总结磁性随结构、尺寸的变化规律，从分子层次上阐明结构与生物活性的构效关系，为新多功能材料的设计开发和新药研究开辟新思路，进一步促进多学科领域的交叉融合和大胆创新。

Spin crossover is highly related to new materials for information storage, photo switch, thermo switch and molecular electronic devices, and has an important practical application. Multi-functional spin crossover materials might display new physical properties owing to the interplay or coupling of different functions. Therefore, the studies on multi-functional spin crossover materials have been the recent research focus. The present project plans to design, synthesize and characterize novel new Schiff base transition metal complexes, from which new bifunctional complexes with spin crossover and bioactivities might be found. Afterwards, nanocrystallization of the materials and size-property relationship in a molecular level will be investigated. The project opens a new avenue towards new multi-functional materials and new drugs, and will promote the multidisciplinary partnerships.