Guest water-induced structural transformation and spin-crossover variation of a two-dimensional Hofmann-type compound

Zhi-Kun Liu; Ke Sun; Jin-Peng Xue; Zi-Shuo Yao; Jun Tao

doi:10.1039/d4dt00435c

Guest water-induced structural transformation and spin-crossover variation of a two-dimensional Hofmann-type compound

Dalton Trans. 2024 Apr 30;53(17):7522-7526. doi: 10.1039/d4dt00435c.

Authors

Zhi-Kun Liu¹, Ke Sun¹, Jin-Peng Xue¹, Zi-Shuo Yao¹, Jun Tao¹

Affiliation

¹ Key Laboratory of Cluster Science of Ministry of Education, School of Chemistry and Chemical Engineering, Liangxiang Campus, Beijing Institute of Technology, Beijing 102488, People's Republic of China. taojun@bit.edu.cn.

PMID: 38597512
DOI: 10.1039/d4dt00435c

Abstract

In this paper, we report a two-dimensional (2D) Hofmann-type spin-crossover coordination polymer [Fe^II(o-NTrz)₂Pt^II(CN)₄]·H₂O (o-NTrz = 4-(o-nitrobenzyl)imino-1,2,4-triazole). Due to the remarkable configurational flexibility of triazole-based ligand, the porous structure of this compound can be reversibly regulated by the loss of guest water molecules as a consequence of rotation of o-NTrz. The 180° reorientation of the o-nitrobenzyl moiety not only induces a response of gate-closing/opening of the porous framework but also significantly modulates the spin transition temperature. The present investigation highlights the potential of Hofmann-type SCO compounds with flexible ligands in exploring unusual physical and chemical phenomena.