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- Title
Guest-Switchable Multi-Step Spin Transitions in an Amine-Functionalized Metal-Organic Framework.
- Authors
Liu, Wei; Peng, Yuan ‐ Yuan; Wu, Si ‐ Guo; Chen, Yan ‐ Cong; Hoque, Md. Najbul; Ni, Zhao ‐ Ping; Chen, Xiao ‐ Ming; Tong, Ming ‐ Liang
- Abstract
Materials with hysteretic multi-step spin-crossover (SCO) have potential application in high-order data storage. Here, an unprecedented hysteretic four-step SCO behavior with the sequence of LS↔HS0.25LS0.75↔HS0.5LS0.5↔ HS0.75LS0.25↔HS is found in a three-dimensional (3D) Hofmann-type metal-organic framework (MOF), which is evidenced by magnetic, differential scanning calorimetry, and crystal data. Further experiments involving guest exchange leads to the first reversible modulation of four-, two-, and one-stepped SCO behaviors, which provides a new strategy for developing multi-step SCO materials.
- Subjects
SPIN crossover; HOFMANN reaction; METAL-organic frameworks; TRANSITION metal complexes; DIFFERENTIAL scanning calorimetry
- Publication
Angewandte Chemie, 2017, Vol 129, Issue 47, p15178
- ISSN
0044-8249
- Publication type
Article
- DOI
10.1002/ange.201708973