Potassium organoaluminate stabilized by bidentate pyrrolyl ligand [C₄H₃NH(2-CH₂NH^tBu)] was successfully synthesized and characterized. The solid state structure reveals it is a rare example of an alkyl-bridged K/Al complex, which is interlocked by bridging potassium ions to form a monodimensional polymeric array, and featured an unsupported bridging methyl interaction between potassium and aluminum metals lead to ultimate 2D supramolecular network structure. It was proved to an efficient catalyst for the conversion of CO₂ into cyclic carbonates in good yields at 50 °C and 1 atm carbon dioxide pressure.

中文翻译：

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有机铝酸钾：将CO ₂转化成环状碳酸酯的合成，结构和催化活性

成功合成并表征了由双齿吡咯基配体[C ₄ H ₃ NH（2-CH ₂ NH ^t Bu）]稳定的有机铝酸钾。固态结构表明它是烷基桥K / Al络合物的罕见实例，它通过桥联钾离子互锁以形成一维聚合物阵列，并且其特征在于钾和铝金属之间不支持的桥联甲基相互作用导致最终的二维超分子网络结构。事实证明，在50℃和1atm的二氧化碳压力下，CO _2可以良好的产率高效地转化为环状碳酸酯。