meso-(acetylacetonato)2Ru(μ-quinizarine(2-))Ru(acetylacetonato)2 | 1035347-72-8

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: meso-(acetylacetonato)2Ru(μ-quinizarine(2-))Ru(acetylacetonato)2
• 英文别名: meso-(acac)2Ru(μ-1,4-dioxido-9,10-anthraquinone)Ru(acac)2
• CAS: 1035347-72-8；1035524-10-7
• 化学式: C₃₄H₃₄O₁₂Ru₂
• 分子量: 836.777
• InChiKey: SCYANPBPEGAWRF-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：

  bis(acetonitrile)bis(2,4-pentanedionato)ruthenium(II) 、 1,4-二羟基蒽醌 在 NaOOCCH₃ 、 air 作用下， 以 乙醇 为溶剂， 以27%的产率得到meso-(acetylacetonato)2Ru(μ-quinizarine(2-))Ru(acetylacetonato)2
  参考文献：
  名称：

  Valence-State Alternatives in Diastereoisomeric Complexes [(acac)₂Ru(μ-QL)Ru(acac)₂]ⁿ (QL²⁻ = 1,4-Dioxido-9,10-anthraquinone,n = +2, +1, 0, −1, −2)

  摘要：

  The title complexes were obtained in neutral form (n = 0) as rac (1) and meso isomers (2). 2 was crystallized for X-ray diffraction and its temperature-dependent magnetism studied. It contains two antiferromagnetically coupled ruthenium(III) ions, bridged by the quinizarine dianion QL(2-) (quinizarine = 1,4-dihydroxy-9, 10-anthraquinone). The potential of both the ligand (QL(0) -> OL4-) and the metal complex fragment combination [(acac)(2)RUII](2) -> {[(acac)(2)Ru-IV](2)}(4+) to exist in five different redox states creates a large variety of combinations, which was assessed for the electrochemically reversibly accessible 2+, 1+, 0, 1-, 2- forms using cyclic voltammetry as well as EPR and UV-vis-NIR spectroelectrochemistry. The results for the two isomers are similar: Oxidation to 1(+) or 2(+) causes the emergence of a near-infrared band (1390 nm), without revealing an EPR response even at 4 K. Reduction to 1(-) or 2(-) produces an EPR signal, signifying metal-centered spin but no near-infrared absorption. Tentatively, we assume metal-based oxidation of [(acac)(2)Ru-II(mu-QL(2-))Ru-III(acac)(2)] to a mixed-valent intermediate [(acac)(2)Ru-III(mu- QL(2-))Ru-IV(acac)(2)](+) and ligand-centered reduction to a radical complex [(acac)(2)Ru-III(mu-QL(3-))Ru-III(acac)(2)](-) with antiferromagnetic three-spin interaction.

  DOI：

  10.1021/ic800115q