K[Ir(pik)Cl4] | 616205-24-4

• 英文名称: K[Ir(pik)Cl4]
• 英文别名: K[Ir(2-pyridyl N-methyl-2-imidazolyl ketone)Cl4]
• CAS: 616205-24-4
• 化学式: C₁₀H₉Cl₄IrN₃O*K
• 分子量: 560.331
• InChiKey: BEZMUABWDVKCGH-UHFFFAOYSA-J

计算性质

• 辛醇/水分配系数(LogP)：
  None
• 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

• 作为反应物：
  描述：

  1,10-菲罗啉 、 K[Ir(pik)Cl4] 以 neat (no solvent) 为溶剂， 以23%的产率得到cis-[Ir(pik)(phen)Cl2]Cl
  参考文献：
  名称：

  Synthesis and spectral properties of 2-pyridyl N-methyl-2-imidazolyl ketone complexes of iridium(III)

  摘要：

  Complexes of iridium(Ill) with 2-pyridyl N-methyl-2-imidazolyl ketone (pik), K[Ir(pik)Cl-4] (1) and [Ir(pik)(phen)Cl-2](+) (2), have been successfully prepared and characterized. Both complexes show high intensity bands in the UV region, and these are assigned to spin-allowed pi-pi* transitions. The medium-intensity absorption band profile in the lower energy region can be explained by spin-allowed CT and, perhaps, convoluted with the weaker n-pi* transitions. At low temperature (77 K), complex 2 in EtOH/MeOH (4: 1, v/v) shows a structural emission with a single vibrational progression of 1090 cm(-1). The luminescence lifetime measured at 474 nm (nu(max), 0-0' band) emission is 9.7 mus and the emission energy becomes smaller while the polarity of solvent increases. Electrochemical data have also been obtained for complex 2 in MeCN. There were two reduction peaks observed for the complex and both are one-electron charge transfer process. Through examination of influence on reduction potential in the presence of phenol, the redox orbital involved in each of the reduction processes is assigned to be the pi* orbital localized at the carbonyl fragment of pik. On the basis of analysis of the luminescence and electrochemical data, the emission of complex 2 is assigned as (MLCT)-M-3, with a charge transfer to the accepting pik pi* orbital. (C) 2003 Elsevier Science B.V. All rights reserved.

  DOI：

  10.1016/s0020-1693(03)00053-7
• 作为产物：
  描述：

  氯化铱(III) 水合物 、 potassium chloride 、 (1-甲基-1H-咪唑-2-基)-吡啶-2-甲酮 以 甲醇 为溶剂， 以42%的产率得到K[Ir(pik)Cl4]
  参考文献：
  名称：

  Synthesis and spectral properties of 2-pyridyl N-methyl-2-imidazolyl ketone complexes of iridium(III)

  摘要：

  Complexes of iridium(Ill) with 2-pyridyl N-methyl-2-imidazolyl ketone (pik), K[Ir(pik)Cl-4] (1) and [Ir(pik)(phen)Cl-2](+) (2), have been successfully prepared and characterized. Both complexes show high intensity bands in the UV region, and these are assigned to spin-allowed pi-pi* transitions. The medium-intensity absorption band profile in the lower energy region can be explained by spin-allowed CT and, perhaps, convoluted with the weaker n-pi* transitions. At low temperature (77 K), complex 2 in EtOH/MeOH (4: 1, v/v) shows a structural emission with a single vibrational progression of 1090 cm(-1). The luminescence lifetime measured at 474 nm (nu(max), 0-0' band) emission is 9.7 mus and the emission energy becomes smaller while the polarity of solvent increases. Electrochemical data have also been obtained for complex 2 in MeCN. There were two reduction peaks observed for the complex and both are one-electron charge transfer process. Through examination of influence on reduction potential in the presence of phenol, the redox orbital involved in each of the reduction processes is assigned to be the pi* orbital localized at the carbonyl fragment of pik. On the basis of analysis of the luminescence and electrochemical data, the emission of complex 2 is assigned as (MLCT)-M-3, with a charge transfer to the accepting pik pi* orbital. (C) 2003 Elsevier Science B.V. All rights reserved.

  DOI：

  10.1016/s0020-1693(03)00053-7