Anisotropy barrier enhancement via ligand substitution in tetranuclear {Co~(Ⅲ)_2Ln~(Ⅲ)_2} single molecule magnets

Stuart K. Langley; Nicholas F. Chilton; Boujemaa Moubaraki; Keith S. Murray

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Anisotropy barrier enhancement via ligand substitution in tetranuclear {Co~(Ⅲ)_2Ln~(Ⅲ)_2} single molecule magnets

机译：四核{Co〜（Ⅲ）_2Ln〜（Ⅲ）_2}单分子磁体中通过配体置换提高各向异性势垒

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The replacement of coordinated acetylacetonate for nitrate around a Dy~(Ⅲ) ion results in the enhancement of the single molecule magnet properties of a {Co~(Ⅲ)_2Dy~(Ⅲ)_2} complex, resulting in a large thermal energy barrier and reduced quantum tunnelling at low temperatures. The analogous Tb~(Ⅲ) complex displays field induced SMM behaviour.

机译：用Dy〜（Ⅲ）离子周围的硝酸根取代配位的乙酰丙酮化物导致{Co〜（Ⅲ）_2Dy〜（Ⅲ）_2}配合物的单分子磁性增强，从而形成较大的热能垒和降低了低温下的量子隧穿。类似的Tb〜（Ⅲ）配合物显示了场致SMM行为。

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《Chemical Communications》 |2013年第62期|6965-6967|共3页
作者
Stuart K. Langley; Nicholas F. Chilton; Boujemaa Moubaraki; Keith S. Murray;
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School of Chemistry, Monash University, Clayton, Victoria 3800, Australia;

School of Chemistry, University of Manchester, Oxford Road, Manchester M19 3PL, UK;

School of Chemistry, Monash University, Clayton, Victoria 3800, Australia;

School of Chemistry, Monash University, Clayton, Victoria 3800, Australia;

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入库时间 2022-08-17 13:18:32

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2. Large Anisotropy Barrier in a Tetranuclear Single-Molecule Magnet Featuring Low-Coordinate Cobalt Centers [J] . Khetpakorn Chakarawet, Philip C. Bunting, Jeffrey R. Long Journal of the American Chemical Society . 2018,第6期

机译：具有低坐标钴中心的四核单分子磁体中的大各向异性势垒
3. Energy-Barrier Enhancement by Ligand Substitution in Tetrairon(III) Single-Molecule Magnets [J] . Andrea Cornia, Antonio C. Fabretti, Pierfrancesco Garrisi, Angewandte Chemie . 2004,第9期

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4. Transverse anisotropy in the mixed-valent Mn_2~(II)Mn_4~(III)Mn_3~(IV) single-molecule magnet [C] . Saiti Datta, Constantinos J. Milios, Euan Brechin Annual Conference on Magnetism and Magnetic Materials . 2008

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5. Synthesis and study of tetranuclear manganese single-molecule magnets. [D] . Aliaga-Alcalde, Nuria. 2003

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Anisotropy barrier enhancement via ligand substitution in tetranuclear {Co~(Ⅲ)_2Ln~(Ⅲ)_2} single molecule magnets

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