cis,cis,cis-dichlorobis[2-(p-chlorophenylazo)pyrimidine]ruthenium(II) | 253151-93-8

• 英文名称: cis,cis,cis-dichlorobis[2-(p-chlorophenylazo)pyrimidine]ruthenium(II)
• CAS: 253151-93-8；253157-50-5
• 化学式: C₂₀H₁₄Cl₄N₈Ru
• 分子量: 609.267
• InChiKey: WIJKAEDHANPYLL-IVZMTRENSA-L

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：

  trans,cis,cis-dichlorobis[2-(p-chlorophenylazo)pyrimidine]ruthenium(II) 以 甲苯 为溶剂， 生成 cis,cis,cis-dichlorobis[2-(p-chlorophenylazo)pyrimidine]ruthenium(II)
  参考文献：
  名称：

  Chemistry of azopyrimidines. Part II. Synthesis, spectra, electrochemistry and X-ray crystal structures of isomeric dichloro bis[2-(arylazo)pyrimidine] complexes of ruthenium(II)

  摘要：

  2-(Arylazo)pyrimidines (aapm, 3) are new N,N'-chelating ligands in the azoimine family and were reacted with RuCl3 in ethanol under refluxing conditions. Three isomers of the composition Ru(aapm)(2)Cl-2 have been chromatographically separated and are established as having trans-cis-cis (tcc), cis-trans-cis (ctc) and cis-cis-cis (ccc) configurations with reference to the order of coordination pairs as Cl; N(pyrimidine), N and N(azo), N'. Two of the three isomeric structures have been confirmed by X-ray crystallography. In both of these structures, the Ru-N(azo) distances are relatively shorter than those of Ru-N(pyrimidine), indicating stronger bonding in the former and the presence of a Ru-(aapm) pi-interaction that is localised in the Ru-azo fragment. The isomer configuration is supported by IR and H-1 NMR data. The complexes exhibit t(2)(Ru)-->pi*(aapm) MLCT transitions in the visible region. Redox studies show the Ru(III)/Ru(II) couple in the green complexes [tcc-Ru(aapm)(2)Cl-2] at 1.1-1.2 V and in the blue complexes [ctc- and ccc-Ru(aapm)(2)Cl-2] at 1.2-1.4 V versus saturated calomel electrode (SCE) and two successive azo reductions. The difference in the first metal and ligand redox potentials is linearly correlated with nu(CT) [t(2)(Ru)-->pi*(aapm)]. (C) 1999 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0277-5387(99)00189-8