Hysteretic four-step spin-crossover in a 3D Hofmann-type metal-organic framework with aromatic guest

Cui-Juan Zhang; Kai-Ting Lian; Guo-Zhang Huang; Sukhen Bala; Zhao-Ping Ni; Ming-Liang Tong

doi:10.1039/c9cc06017k

Hysteretic four-step spin-crossover in a 3D Hofmann-type metal-organic framework with aromatic guest

Chem Commun (Camb). 2019 Sep 21;55(74):11033-11036. doi: 10.1039/c9cc06017k. Epub 2019 Aug 27.

Authors

Cui-Juan Zhang¹, Kai-Ting Lian¹, Guo-Zhang Huang¹, Sukhen Bala¹, Zhao-Ping Ni¹, Ming-Liang Tong¹

Affiliation

¹ Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, P. R. China. nizhp@mail.sysu.edu.cn.

PMID: 31453995
DOI: 10.1039/c9cc06017k

Abstract

A new Hofmann-type metal-organic framework with bent pillar ligand, [Fe(dpoda){Ag(CN)₂}₂] (dpoda = 2,5-di-(pyridyl)-1,3,4-oxadiazole), was synthesized. Four-, two- and one-step spin-crossover (SCO) properties were obtained by using different sizes of aromatic guests. Most importantly, hysteretic four-step SCO behaviour with the sequence of LS ↔ HS_0.25LS_0.75↔ HS_0.5LS_0.5↔ HS_0.67LS_0.33↔ HS is observed for the first time.