Light-induced hidden multistability in a spin crossover metal-organic framework

Xie, Kai-Ping1; Ruan, Ze-Yu1; Chen, Xiao-Xian1; Yang, Jiong2; Wu, Si-Guo1; Ni, Zhao-Ping1; Tong, Ming-Liang1

2022-02-01

10.1039/d2qi00037g

Inorganic Chemistry Frontiers   影响因子和分区

2052-1553

The pursuit of spin crossover (SCO) materials with photoswitchable multistability is driven by fascinating perspectives toward light-response switches and opto-magnetic memory devices. Herein, we report a 3D Hofmann-type metal-organic framework [Fe(bpn){Ag(CN)(2)}(2)]center dot 1.5(Fnaph) (bpn = 1,4-di(pyridin-4-yl)naphthalene, Fnaph = 1-fluoronaphthalene), which displays an incomplete two-step SCO behaviour. The asymmetric host-guest interactions induce an intermediate HS-LS state at low temperature. Photomagnetic measurements exhibited an extremely rare bidirectional light-induced excited spin-state trapping (LIESST) effect with green and near-IR light irradiation, in which both metastable HS* and hidden LS* states were revealed at 10 K. The light-induced tristability paves the way for designing optomagnetic memory devices.

SCI ; EI

英语

其他

National Key Research and Development Program of China[2018YFA0306001] ; NSFC[22075323] ; Pearl River Talent Plan of Guangdong[2017BT01C161]

Chemistry

Chemistry, Inorganic & Nuclear

WOS:000766287300001

ROYAL SOC CHEMISTRY

20221311847044

Excited states ; Organometallics ; Temperature ; Virtual storage

Thermodynamics:641.1 ; Data Storage, Equipment and Techniques:722.1 ; Organic Compounds:804.1 ; Atomic and Molecular Physics:931.3 ; Quantum Theory; Quantum Mechanics:931.4

Web of Science

1.Sun Yat Sen Univ, Sch Chem, Key Lab Bioinorgan & Synthet Chem, Minist Educ, Guangzhou 510275, Guangdong, Peoples R China
2.Southern Univ Sci & Technol, Dept Chem, Shenzhen 518055, Peoples R China

Xie, Kai-Ping,Ruan, Ze-Yu,Chen, Xiao-Xian,et al. Light-induced hidden multistability in a spin crossover metal-organic framework[J]. Inorganic Chemistry Frontiers,2022,9:1770-1776.

Xie, Kai-Ping.,Ruan, Ze-Yu.,Chen, Xiao-Xian.,Yang, Jiong.,Wu, Si-Guo.,...&Tong, Ming-Liang.(2022).Light-induced hidden multistability in a spin crossover metal-organic framework.Inorganic Chemistry Frontiers,9,1770-1776.

Xie, Kai-Ping,et al."Light-induced hidden multistability in a spin crossover metal-organic framework".Inorganic Chemistry Frontiers 9(2022):1770-1776.