Abstract The conversion of CO2 into value-added chemicals of industrial significance is of great interest due to global warming-related concerns and the depletion of natural resources. This paper describes a mononuclear copper complex with an N3S coordination environment that can catalyze the conversion of CO2 into the carbonate anion with an ambient O2. Electrochemical studies indicate that the N3S-ligated Cu(II) complex can be reduced to Cu(I), which can subsequently generate the carbonate anion from CO2 and ambient O2. In presence of LiClO4 when the N3S-ligated complex Cu(II) is reduced to Cu(I), the complex easily releases the carbonate anion which easily precipitates as Li2CO3 in CH3CN. These studies suggest that the N3S-ligated Cu(II)/(I) complexes can be used to convert CO2 to carbonate and isolate the generated carbonate.

中文翻译：

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基于铜配合物的碳封存过程中碳酸盐的催化转化和分离

摘要 由于与全球变暖相关的担忧和自然资源的枯竭，将 CO2 转化为具有工业意义的增值化学品引起了人们的极大兴趣。本文描述了一种具有 N3S 配位环境的单核铜配合物，该配合物可以用环境 O2 催化 CO2 转化为碳酸根阴离子。电化学研究表明，N3S 连接的 Cu(II) 复合物可以还原为 Cu(I)，然后可以从 CO2 和环境 O2 中生成碳酸根阴离子。在 LiClO4 的存在下，当 N3S 连接的配合物 Cu(II) 被还原为 Cu(I) 时，该配合物容易释放碳酸根阴离子，该阴离子很容易在 CH3CN 中以 Li2CO3 的形式沉淀。这些研究表明，N3S 连接的 Cu(II)/(I) 复合物可用于将 CO2 转化为碳酸盐并分离生成的碳酸盐。