[Mn3O(2-hydroxyphenylethanone oxime-2H)3(MeOH)3(ClO4)]*MeOH | 1352964-88-5

• 英文名称: [Mn3O(2-hydroxyphenylethanone oxime-2H)3(MeOH)3(ClO4)]*MeOH
• CAS: 1352964-88-5
• 化学式: CH₄O*C₂₇H₃₃ClMn₃N₃O₁₄
• 分子量: 855.88
• InChiKey: FPDTZPDXGUUTIS-GOZJKYTOSA-G

计算性质

• 辛醇/水分配系数(LogP)：
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• 重原子数：
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• 可旋转键数：
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• 环数：
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• sp3杂化的碳原子比例：
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• 拓扑面积：
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• 氢给体数：
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• 氢受体数：
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反应信息

• 作为产物：
  描述：

  甲醇 、 manganese(II) perchlorate hexahydrate 、 1-(2-羟基苯基)-1-乙酮肟 在 triethyl amine 作用下， 以 甲醇 为溶剂， 以20%的产率得到[Mn3O(2-hydroxyphenylethanone oxime-2H)3(MeOH)3(ClO4)]*MeOH
  参考文献：
  名称：

  Crystal packing effects within [MnIII3O]7+ single-molecule magnets: Controlling intermolecular antiferromagnetic interactions

  摘要：

  The reactions of 2-hydroxyphenylethanone oxime (Me-H(2)salox) and (2-hydroxy-phenyl)-phenyl-methanone oxime (Ph-H(2)salox) with Mn(ClO4)(2)center dot 6H(2)O in MeOH afford trinuclear manganese complexes of [Mn3O(Me-salox)(3)(MeOH)(3)(ClO4)]center dot MeOH (1.MeOH) and [Mn3O(Ph-salox)(3)(MeOH)(3)(ClO4)]center dot 2MeOH (2.2MeOH), respectively. X-ray analysis shows that both complexes contain a manganese triangle core, [(Mn3O)-O-III](7+). The structural distortion from the twisting of the oxime ligands dominates the ferromagnetic interactions within the three Mn ions in both compounds and results in an S = 6 ground state. The frequency dependence of out-of-phase signals in the alternating current (AC) magnetic susceptibility measurements and the temperature-dependent and sweep-rate-dependent hysteresis loops are indicative of single-molecule magnet behavior. Moreover, both complexes show step-wise magnetization, indicating the occurrence of quantum tunneling of magnetization (QTM). Interestingly, a tail to tail arrangement in the crystal packing of complex 1.MeOH results in strong intermolecular H-bonding interactions and leads to the exchange-bias effect from the antiferromagnetic interaction between the adjacent Mn-3 molecules. In contract, QTM steps of complex 2.2MeOH show an absence of the exchange-bias effect due to a weak intermolecular interaction from a head to tail arrangement. (C) 2011 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.poly.2011.05.030