Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 58, Issue 29, Pages 9802-9806Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201904645
Keywords
cobalt; hysteresis; molecular magnetism; Raman process; single-molecule magnet
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Funding
- German Science Foundation DFG [SL104/10-1, SA1840/9-1]
- Landesgraduiertenforderung Baden-Wurttemberg
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The energy barrier leading to magnetic bistability in molecular clusters is determined by the magnetic anisotropy of the cluster constituents. By incorporating a highly anisotropic four-coordinate cobalt(II) building block into a strongly coupled fully air-and moisture-stable three-spin system, it proved possible to suppress under-barrier Raman processes leading to 350-fold increase of magnetization relaxation time and pronounced hysteresis. Relaxation times of up to 9 hours at low temperatures were found.
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