cis α-[Rh(2-pyridyl N-methyl-2-imidazolyl ketone)2Cl2]Cl | 392671-72-6

• 英文名称: cis α-[Rh(2-pyridyl N-methyl-2-imidazolyl ketone)2Cl2]Cl
• CAS: 392671-72-6
• 化学式: C₂₀H₁₈Cl₂N₆O₂Rh*Cl
• 分子量: 583.666
• InChiKey: PXGLAUKKIYMZJT-UHFFFAOYSA-K

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：

  氯化铑(三水) 、 (1-甲基-1H-咪唑-2-基)-吡啶-2-甲酮 以 甲醇 为溶剂， 以21%的产率得到cis α-[Rh(2-pyridyl N-methyl-2-imidazolyl ketone)2Cl2]Cl
  参考文献：
  名称：

  Spectral and electrochemical properties of 2-pyridyl N-methyl-2-imidazolyl ketone complex of rhodium(III)

  摘要：

  A new complex of [Rh(pik)(2)Cl-2]Cl (where pik is 2-pyridyl N-methyl-2-imidazolyl ketone) has been synthesized and characterized. Both the free pik and the complex show high intensity bands in the UV region, and are assigned to spin-allowed pi-pi* transitions. Only the complex, however, exhibits medium-intensity absorption band profile in the lower energy region. This low-energy absorption might be explained by spin-allowed CT and, perhaps, convoluted with the weak d-d* transitions. Emission spectra at low temperature (77 K) of both the free pik and the complex in EtOH/MeOH (4:1 v/v) have also been investigated. The less structure spectrum observed for free pik is confirmed as n-pi* transition. On the other hand, the complex shows a broad, symmetric, and structureless red emission with microsecond lifetime and hence is assigned as d-d* phosphorescence. Voltammetric data have also been obtained for free pik and the complex. The one-electron transfer occurred at the pi-system of the CO fragment of the free pik. There were three reduction peaks observed for the complex. The first peak, including two reduction steps with elimination of two chlorides, is consistent with ECEC reaction. Through examination of influence on reduction potential in the presence of phenol, the redox orbital involved in the last reduction is assigned to be the pi* orbital localized at the carbonyl fragment of pik. (C) 2001 Elsevier Science B.V. All rights reserved.

  DOI：

  10.1016/s0020-1693(01)00614-4