[Mn6O2(salicylaldoxime(2-))6(MeOH)6(NCNCONH2)2] | 1176783-51-9

• 英文名称: [Mn6O2(salicylaldoxime(2-))6(MeOH)6(NCNCONH2)2]
• CAS: 1176783-51-9
• 化学式: C₅₂H₅₈Mn₆N₁₂O₂₂
• 分子量: 1532.73
• InChiKey: DDNROANZUBJAFW-HEZKMMIRSA-A

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 、 水杨醛肟 、 sodium dicyanamide 在 triethylamine 、 O₂ 作用下， 以 甲醇 为溶剂， 以48%的产率得到[Mn6O2(salicylaldoxime(2-))6(MeOH)6(NCNCONH2)2]
  参考文献：
  名称：

  Synthesis, structures and magnetic properties of two hexanuclear complexes

  摘要：

  The reaction of salicylaldoxime (H(2)salox) With Mn(ClO4)(2) center dot 6H(2)O, NaN(CN)(2) and NEt3 in MeOH affords a Mn-6(III) hexanuclear complex of [Mn6O2(salox)(6)(MeOH)(6)(NCNCONH2)(2)] (1), while reaction of H(2)salox With MnCl2 center dot 4H(2)O and NEt4OH in EtOH affords a Mn-6(III) hexanuclear complex of [Mn6O2(salox)(6)(EtOH)(4)(H2O)(2)Cl-2] (2). Both complexes 1 and 2 contain a [Mn-6(III)(mu(3)-O)(2)](14+) core, which is a known structural type in the family of Mn-6 complexes. Variable temperature magnetic susceptibilities and magnetization measurement of complexes 1 and 2 have been carried out. Exchange interactions of metal centers for complexes 1 and 2 are fitted by a full diagonalization matrix method. The fitting results indicate that both complexes 1 and 2 have the ground-state spin value of S = 4, and the ground state of complex 1 has the much closer energy to low-lying spin states than that of complex 2. Magnetization measurements at 2.0-4.0 K and 10-70 kG confirm that the ground state is S = 4, with significant magnetoanisotropy as gauged by the D value of -0.82 cm(-1) and -1.18 cm(-1), for 1 and 2, respectively. The frequency dependence of the out-of-phase component in alternating current magnetic susceptibilities for both complexes 1 and 2 indicates the slow magnetic relaxation of superparamagnetic behaviour with a U-eff of 27.0(1) K and tau(0) = 3.8(2) x 10(-9) s for complex 1, and U-eff of 25.1(6) K and tau(0) = 4.6(1) x 10(-8) s for complex 2. (C) 2009 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.poly.2009.02.001