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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >A new family of Mn_6 SMMs using phosphinate ligands
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A new family of Mn_6 SMMs using phosphinate ligands

机译：使用次膦酸酯配体的新的Mn_6 SMM系列

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摘要

A new family of hexametallic [Mn~(III)_6] Single-Molecule Magnets with general formula [Mn_6O_2(R-sao) _6(X)_2(MeOH)_(4-6)] (R = H, Me, Et or Ph; X = O_2PHPh or O_2P(Ph)_2) have been synthesised and characterised. The molecules are new members of the [Mn_6] family of SMMs in which the carboxylate ligands have been replaced with phenyl- and diphenylphosphinate. The magnetic cores remain largely unaltered meaning that structural distortions of the Mn-N-O-Mn torsion angles in the [Mn_3O] subunits can be used to tune the magnetic properties, switching pairwise exchange interactions from antiferromagnetic to ferromagnetic. The results suggest that the Mn_6 building block, be it ferro- or antiferromagnetically coupled, could be an important building block for the formation of novel, functional 0-3D materials.
机译：通式为[Mn_6O_2（R-sao）_6（X）_2（MeOH）_（4-6）]的六族[Mn〜（III）_6]单分子磁体新族（R = H，Me，Et或Ph; X = O_2PHPh或O_2P（Ph）_2）已合成并表征。这些分子是SMM [Mn_6]家族的新成员，其中的羧酸盐配体已被苯基和次苯基次膦酸酯取代。磁芯基本上保持不变，这意味着[Mn_3O]子单元中Mn-N-O-Mn扭转角的结构畸变可用于调整磁性能，将成对交换相互作用从反铁磁性转换为铁磁性。结果表明，Mn_6结构单元（无论是铁磁耦合还是反铁磁耦合）可能是形成新型功能性0-3D材料的重要结构单元。

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