Spin crossover iron complexes with spin transition near room temperature based on nitrogen ligands containing aromatic rings: from molecular design to functional devices,Chemical Society Reviews

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Spin crossover iron complexes with spin transition near room temperature based on nitrogen ligands containing aromatic rings: from molecular design to functional devices
Chemical Society Reviews ( IF 40.4 ) Pub Date : 2024-07-29 , DOI: 10.1039/d3cs00688c
Yongjie Zhang ₁ , Ramón Torres-Cavanillas ₂ , Xinxin Yan ₁ , Yixun Zeng ₁ , Mengyun Jiang ₁ , Miguel Clemente-León ₂ , Eugenio Coronado ₂ , Shengwei Shi _{1,

3}

Affiliation

During last decades, significant advances have been made in iron-based spin crossover (SCO) complexes, with a particular emphasis on achieving reversible and reproducible thermal hysteresis at room temperature (RT). This pursuit represents a pivotal goal within the field of molecular magnetism, aiming to create molecular devices capable of operating in ambient conditions. Here, we summarize the recent progress of iron complexes with spin transition near RT based on nitrogen ligands containing aromatic rings from molecular design to functional devices. Specifically, we discuss the various factors, including supramolecular interactions, crystal packing, guest molecules and pressure effects, that could influence its cooperativity and the spin transition temperature. Furthermore, the most recent advances in their implementation as mechanical actuators, switching/memories, sensors, and other devices, have been introduced as well. Finally, we give a perspective on current challenges and future directions in SCO community.

中文翻译：

基于含芳香环的氮配体在室温附近具有自旋跃迁的自旋交叉铁配合物：从分子设计到功能器件

在过去的几十年中，铁基自旋交叉（SCO）配合物取得了重大进展，特别强调在室温（RT）下实现可逆和可再现的热滞后。这一追求代表了分子磁性领域的一个关键目标，旨在创造能够在环境条件下运行的分子装置。在此，我们总结了基于含芳环氮配体的近室温自旋跃迁铁配合物从分子设计到功能器件的最新进展。具体来说，我们讨论了可能影响其协同性和自旋转变温度的各种因素，包括超分子相互作用、晶体堆积、客体分子和压力效应。此外，还介绍了机械执行器、开关/存储器、传感器和其他设备的最新进展。最后，我们对 SCO 社区当前的挑战和未来的方向进行了展望。

更新日期：2024-07-29

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