| 181126-24-9

• 分子结构分类: 有机化合物 - 苯类化合物
• CAS: 181126-24-9
• 化学式: C₁₆H₁₆Cl₂MnN₂O₄*ClO₄
• 分子量: 525.609
• InChiKey: FRTCXKJSNZZNIW-UKLQWGCTSA-K

计算性质

• 辛醇/水分配系数(LogP)：
  None
• 重原子数：
  None
• 可旋转键数：
  None
• 环数：
  None
• sp3杂化的碳原子比例：
  None
• 拓扑面积：
  None
• 氢给体数：
  None
• 氢受体数：
  None

反应信息

• 作为产物：
  描述：

  manganese(II) perchlorate hexahydrate 、 N,N'-bis(5-chlorosalicylidene)ethane-1,2-diamine 在 aq. NaOH 、 air 作用下， 以 甲醇 、 乙醇 、 水 为溶剂， 以60%的产率得到
  参考文献：
  名称：

  Electronic and steric effects in manganese Schiff-base complexes as models for the water oxidation complex in photosystem II. The isolation of manganese-(II) and -(III) complexes of 3- and 3,5-substituted N,N′-bis(salicylidene)ethane-1,2-diamine (H₂salen) ligands

  摘要：

  Manganese-(II) and -(III) complexes of substituted N,N'-bis(salicylidene)ethane-1,2-diamine (H(2)salen) ligands H(2)L (substituents are in the 3,5 or 3,5 positions of the phenyl rings of the salen moiety) have been prepared and thoroughly characterised. The reaction of Mn(ClO4)(2) . 6H(2)O with H(2)L in ethanol in air normally leads to manganese(III) complexes ligated by both the N2O2 ligand and water molecule(s). However, by employing electron-withdrawing substituents on the ligand, e.g. 3-Br,5-NO2, a manganese(II) complex can be obtained. A 'borderline' ligand is represented by the 5-NO2 derivative (nsalen), which produces a manganese(II) complex contaminated with a small amount of a manganese(In) species. Using a more rigorous oxidising agent in the synthesis, [Fe(eta-C5H5)(2)][FeCl4], drives the reaction totally to a manganese(III) complex [Mn(nsalen)Cl(H2O)]. In addition to magnetic susceptibility studies, cyclic voltammetry has been employed. All the complexes exhibit an oxidation and reduction peak, the reversible character being confirmed by pulse voltammetry. Pulse voltammetry also confirmed the nature of the manganese(II) species [Mn(bnsalen)(H2O)(2)]. 2H(2)O [H(2)bnsalen = N,N'-bis(3-bromo-5-nitrosalicylidene)ethane-1,2-diamine] and that a slight amount of a manganese(III) species is present in [Mn(nsalen)(H2O)(2)]. 2H(2)O. Six complexes have been crystallographically characterised. Despite the retention of an octahedral manganese environment in all of them, the supramolecular structures exhibit a wide diversity. The 3,5-dichloro and 5-bromo salen complexes containing co-ordinated water display combined pi and hydrogen bonding, as well as dimerisation. The complex [{Mn(mu-dbsalen)(mu-O)}(2)] (dbsalen = 3,5-dibromo derivative) offers an alternative bridging arrangement, and [Mn(bsalen)(MeOH)(OClO3)]. H2O (bsalen = 5-bromo derivative) highlights the versatility of the manganese centre in these systems where, unexpectedly, perchlorate is co-ordinated in place of a lattice water. A more subtle rearrangement of supramolecular structure is obtained in [Mn(nsalen)Cl(H2O)] where the usual combination of pi- or hydrogen-bonding interaction is modified by the corresponding ability of the 5-NO2 substituent.

  DOI：

  10.1039/dt9960002935

文献信息

• The diversity observed in manganese(III) complexes of tetradentate Schiff base ligands: An assessment of structural trends
  作者：M.R. Bermejo、M. Fondo、A. Garcia-Deibe、M. Rey、J. Sanmartin、A. Sousa、M. Watkinson、C.A. McAuliffe、R.G. Pritchard

  DOI：10.1016/0277-5387(96)00161-1

  日期：1996.9

  Abstract A series of manganese(III) complexes of aryl substituted N 2 O 2 donor set Schiff base ligands has been prepared by the aerial oxidation of manganese(II) precursors. The resultants complexes of stoichiometry [MnL]C1O 4 · n H 2 O (where n = 1–3) have been thoroughly characterised by elemental analyses, infrared spectroscopy, fast atom bombardment (FAB) mass spectrometry, magnetic susceptibility

  摘要：通过对锰（II）前体进行空中氧化，制备了一系列芳基取代的N 2 O 2供体集席夫碱配体的锰（III）配合物。化学合成[MnL] C1O 4·n H 2 O（n = 1-3）的合成物已通过元素分析，红外光谱，快速原子轰击（FAB）质谱，磁化率测量和顺磁性1 H进行了全面表征核磁共振。[MnL 7（H 2 O）2] ClO 4·H 4 O，1的晶体结构显示，它由通过复杂连接的近似八面体的[MnL 7（H 2 O）2] +阳离子的聚合物阵列组成。高氯酸根抗衡离子和晶格水分子之间的氢键网络。席夫碱配体的芳基环之间的π-π稳定作用进一步增强了这种氢键。