Four-step electron transfer coupled spin transition in a cyano-bridged Fe2Co2 square complex

• Published in: Dalton transactions : an international journal of inorganic chemistry 2024-09, Vol.53 (37), p.15465
• Main Authors: Ikeda, Taisuke, Huang, Yu-Bo, Wu, Shu-Qi, Zheng, Wenwei, Xu, Wen-Huang, Zhang, Xiaopeng, Ji, Tianchi, Uematsu, Mikoto, Kanegawa, Shinji, Su, Sheng-Qun, Sato, Osamu
• Format: Article
• Language: English
• ISSN: 1477-9234; 1477-9234
• DOI: 10.1039/d4dt01581a

The design of molecular functional materials with multi-step magnetic transitions has attracted considerable attention. However, the development of such materials is still infrequent and challenging. Here, a cyano-bridged square Prussian blue complex that exhibits a thermally induced four-step electron transfer coupled spin transition (ETCST) is reported. The magnetic and spectroscopic analyses confirm this multi-step transition. Variable-temperature infrared spectrum suggested the electronic structures in each phase and a four-step transition model is proposed.The design of molecular functional materials with multi-step magnetic transitions has attracted considerable attention. However, the development of such materials is still infrequent and challenging. Here, a cyano-bridged square Prussian blue complex that exhibits a thermally induced four-step electron transfer coupled spin transition (ETCST) is reported. The magnetic and spectroscopic analyses confirm this multi-step transition. Variable-temperature infrared spectrum suggested the electronic structures in each phase and a four-step transition model is proposed.