Dual-Responsive Spin-Crossover Cages

自旋交叉化合物可以改变它们的自旋状态，以响应刺激，如温度和光，它们显示出作为电子开关和传感器的应用前景。金属-有机笼作为分子容器由于其在其空腔内以高亲和力包封客体分子的潜力而受到关注。最近，自旋交叉Fe（II）笼已成为一类新的自旋交叉化合物，其中客体封装可以调节自旋交叉性能。然而，自旋交叉笼的例子仍然相对较少，并且合作效应和主客体化学对自旋交叉的影响仍然没有得到很好的理解。在该项目中，将开发双响应自旋交叉笼，其中温度和光都可以在笼中的Fe（II）中心的自旋状态在高自旋和低自旋之间切换。合作效应和主客体化学对自旋交叉的作用也将被研究。通过这些研究，将获得对多核架构中自旋交叉的更好理解，从而使其能够改进传感等应用的合理设计。

Spin-crossover compounds can change their spin-state in response to stimuli, such as temperature and light, and they show promise in applications as electronic switches and sensors. Metal-organic cages have gained attention as molecular containers for their potential to encapsulate guest molecules with high affinity within their cavities. Recently, spin-crossover Fe(II) cages have emerged as a new class of spin-crossover compounds where guest encapsulation can tune the spin-crossover properties. However, there are still relatively few examples of spin-crossover cages and the influence of cooperative effects and host-guest chemistry on spin-crossover is still not well understood. In this project, dual-responsive spin-crossover cages will be developed where both temperature and light can switch the spin-state of the Fe(II) centres in the cage between high and low spin. The role of cooperative effects and host-guest chemistry on the spin-crossover will also be investigated. Through these studies, a greater understanding of spin-crossover in multinuclear architectures will be gained, enabling their improved rational design for applications like sensing.