cobalt(II)-5,10,15,20-tetrakis(2′,6′-dimethoxyphenyl)-21H,23H-porphyrin | 180711-72-2

• 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: cobalt(II)-5,10,15,20-tetrakis(2′,6′-dimethoxyphenyl)-21H,23H-porphyrin
• CAS: 180711-72-2
• 化学式: C₅₂H₄₄CoN₄O₈
• 分子量: 911.937
• InChiKey: DXLKVJJKTLVGRI-NOUPMALDSA-N

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：
  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：

  2,6-二甲氧基苯甲醛 在 2,6-二甲基吡啶 、 三氟化硼乙醚 作用下， 以 四氢呋喃 、 氯仿 为溶剂， 反应 5.0h， 生成 cobalt(II)-5,10,15,20-tetrakis(2′,6′-dimethoxyphenyl)-21H,23H-porphyrin
  参考文献：
  名称：

  Selective ligand modification of cobalt porphyrins for carbon dioxide electrolysis: Generation of a renewable H2/CO feedstock for downstream catalytic hydrogenation

  摘要：

  Catalytic hydrogenation is an attractive approach to produce green fuels and chemicals. The building blocks for these processes may be effectively produced from renewable power via direct electrochemical reduction of carbon dioxide in an aqueous media. For the first time, the impact of increasing the local proton concentration of cobalt porphyrin was examined by synthesizing new cobalt porphyrins 2, Co(o-OCH3)TPP and cobalt porphyrin 3, Co(o-OH)TPP. Cobalt porphyrins coated on carbon paper converted carbon dioxide and water into a mixture of hydrogen and carbon monoxide in an aqueous electrolyte at near neutral pH. Increasing the local proton availability of the commercial cobalt porphyrin 1, accelerates hydrogen generation under heterogeneous conditions across the range of potentials tested (-0.85 to -1.5 V vs. Ag/AgCl) and demonstrates high Faradaic efficiencies (ca. 90%) at low over-potentials (ca. 540 mV). The culmination of this work can help identify key parameters that facilitate generation of sustainable reagents for catalytic hydrogenation under practical and scalable conditions.

  DOI：

  10.1016/j.ica.2020.119594
• 作为试剂：
  描述：

  二氧化碳 、 水 在 cobalt(II)-5,10,15,20-tetrakis(2′,6′-dimethoxyphenyl)-21H,23H-porphyrin 、 tert-butylammonium hexafluorophosphate(V) 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 生成 一氧化碳 、 氢气
  参考文献：
  名称：

  Selective ligand modification of cobalt porphyrins for carbon dioxide electrolysis: Generation of a renewable H2/CO feedstock for downstream catalytic hydrogenation

  摘要：

  Catalytic hydrogenation is an attractive approach to produce green fuels and chemicals. The building blocks for these processes may be effectively produced from renewable power via direct electrochemical reduction of carbon dioxide in an aqueous media. For the first time, the impact of increasing the local proton concentration of cobalt porphyrin was examined by synthesizing new cobalt porphyrins 2, Co(o-OCH3)TPP and cobalt porphyrin 3, Co(o-OH)TPP. Cobalt porphyrins coated on carbon paper converted carbon dioxide and water into a mixture of hydrogen and carbon monoxide in an aqueous electrolyte at near neutral pH. Increasing the local proton availability of the commercial cobalt porphyrin 1, accelerates hydrogen generation under heterogeneous conditions across the range of potentials tested (-0.85 to -1.5 V vs. Ag/AgCl) and demonstrates high Faradaic efficiencies (ca. 90%) at low over-potentials (ca. 540 mV). The culmination of this work can help identify key parameters that facilitate generation of sustainable reagents for catalytic hydrogenation under practical and scalable conditions.

  DOI：

  10.1016/j.ica.2020.119594