[Cu(6,6'-bis(3''-oxide-1''-oxyl-4'',4'',5'',5''-tetramethylimidazoline-2''-yl)-2,2'-bipyridine)(ClO4)2] | 155607-89-9

• 英文名称: [Cu(6,6'-bis(3''-oxide-1''-oxyl-4'',4'',5'',5''-tetramethylimidazoline-2''-yl)-2,2'-bipyridine)(ClO4)2]
• CAS: 155607-89-9
• 化学式: C₂₄H₃₀Cl₂CuN₆O₁₂
• 分子量: 728.987
• InChiKey: SROUCUYOYPVBFT-UHFFFAOYSA-L

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：

  copper(II) perchlorate hexahydrate 、 6,6'-bis(4,4,5,5-tetramethylimidazoline 3-oxide 1-oxyl 2-yl)-2,2'-bipyridine 以 not given 为溶剂， 以68%的产率得到[Cu(6,6'-bis(3''-oxide-1''-oxyl-4'',4'',5'',5''-tetramethylimidazoline-2''-yl)-2,2'-bipyridine)(ClO4)2]
  参考文献：
  名称：

  Synthesis, coordination and magnetic properties of a novel family of stable chelate based biradicals: molecular structure of a 2,2′-bipyridine N-oxide N-oxyl biradical and its copper(II) complex

  摘要：

  多元（醛+羟胺）缩合后轻度氧化，生成螯合N-氧化物N-氧自由基3和6；两种配体均生成单核铜（II）和镍（II）配合物，与两个自由基配位，在低温下表现出强烈的反铁磁耦合。

  DOI：

  10.1039/c39940000741

文献信息

• Nitronyl Nitroxide Biradicals as Tetradentate Chelates:  Unusually Large Metal−Nitroxide Ferromagnetic Interactions
  作者：Dominique Luneau、Francisco M. Romero、Raymond Ziessel

  DOI：10.1021/ic9803412

  日期：1998.10.5

  A series of mononuclear transition metal complexes of the tetradentate (N2O2) 6,6'-bis(3 "-oxide-1 "-oxyl-4 ",4 ",5 ",5 "-tetramethylimidazoline-2 "-yl)-2,2'-bipyridine (NIT-bpy) has been prepared and characterized by spectroscopic, magnetic, and single-crystal X-ray diffraction studies. The free NIT-bpy ligand is planar with an anti-conformation, whereas in each complex this ligand is tetracoordinated to the metal in a syn-conformation comprising the equatorial plane of a distorted octahedron. Complexes differ by the nature or the ancillary ligands occupying the trans-axial positions, these being two water molecules in [Ni-II(NIT-bpy). 2H(2)O](ClO4)(2), 1, one molecule of water and one perchlorate anion in [M(NIT-bpy). H2O . ClO4]ClO4 (M = Ni(II), 2; Mn(II), 3; Co(II), 4), or two perchlorate anions in [Cu-II(NIT-bpy). 2ClO(4)], 5. The ferromagnetic metal-nitroxide coupling found for the nickel complex 1 (J(12) = + 39.6 cm(-1)) arises from near-coplanarity between the pi-conjugated radical plane and the equatorial plane of the trans-diaquaNi(N-2O2)(H2O)(2)} octahedron. Deviations from this geometry lead to antiferromagnetic components that are dominant in complex 1 (J(23) = - 48.7 cm(-1)) and tend to reduce the extent of the ferromagnetic interactions in complex 2 (J(12) = +27.8 cm(-1) and J(23) = +6.9 cm(-1)). For the Mn2+ complex 3, variable temperature studies indicate antiferromagnetic behavior J = - 65.3 cm(-1), but with weak intermolecular ferromagnetic interactions zJ' = + 0.22 cm(-1). For the Co2+ complex 4. experimental data were best explained as a weak ferromagnetic interaction J(12) = + 0.40 cm(-1) and a relatively strong antiferromagnetic interaction J(23) = - 28.0 cm(-1). The Cu2+ complex 5 exhibits strong antiferromagnetic behavior J = -166.8 cm(-1). The magnetic data of the [M'(NIT-bpy)](ClO4)(2) (M' = Zn(II), 6; Fe(II) low-spin, 7) complexes were fit to a Curie-Weiss law (theta = -2.43 cm(-1) for 6 and theta = -0.51 cm(-1) for 7). No intramolecular radical-radical interaction is apparent in any of these complexes.