Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 139, Issue 42, Pages 14877-14880Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jacs.7b08690
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Funding
- Welch Foundation [A-1880]
- TAMU Chemistry Department for generous start-up funds
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A synthetic protocol was developed that involves the transmetalation of a mono-dysprosium [1]ferrocenophane complex with DyX3 (X = Cl- or I-) to afford [Dy(3)Fc(6)Li(2)(THF)(2)](-), featuring a rare linear arrangement of magnetically anisotropic Dy3+ ions. The close spatial inter-lanthanide proximity, in combination with mu(2)-bridging sp(2)-hybridized C-cp groups, enforces significant magnetic coupling and results in hard single molecule magnet (SMM) behavior, with an effective barrier to magnetization reversal of up to 268 cm(-1). Our results highlight the versatility of lanthanide metallocenophane architectures toward the development of novel multinuclear SMM frameworks.
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