Fe-mediated C-O cleavage and C-C bond forming reactions from CO2 and CO substrates

这项由无机化学、生物无机化学和金属有机化学项目颁发的奖项支持麻省理工学院的乔纳斯·彼得斯教授研究(膦硼酸)铁(I)化合物的工作，这些化合物由于配位数和几何结构相对较低而在结构上不寻常。这些络合物具有铁-氮多键。这些络合物被发现介导了C-O裂解途径，影响部分或全部CO挤出或还原C-C偶联生成草酸。还将探索单金属和双金属铁(氧)物种的合成，特别是在二氢活化方面。最后，激活二氧化碳并释放铁的羰基产物的能力为将二氧化碳用作C-C偶联反应的合成子打开了大门，该反应利用CO作为卡宾或卡宾的前体。还将研究铁(卡宾)和卡宾的合成及其与氢的反应活性。除了二氧化碳的还原降解可能对减少温室气体和开发新的碳管理方法产生重要影响外，这项研究还将鼓励本科生和研究生在进入化学职业生涯时对能源转换问题变得敏感。

This award by the Inorganic, Bioinorganic, and Organometallic Chemistry Program supports the work of Professor Jonas Peters at the Massachusetts Institute of Technology to investigate (phosphinoborate)iron(I) compounds that are structurally unusual by virtue of their relatively low coordination numbers and geometry. These complexes feature iron-nitrogen multiple bonds. These complexes have been found to mediate C-O cleavage pathways that effect partial or complete CO extrusion or reductive C-C coupling to produce oxalate. The synthesis of monometallic and bimetallic iron(oxo) species will also be explored particularly in terms of dihydrogen activation. Finally, the ability to activate carbon dioxide and release iron carbonyl products opens the door to using carbon dioxide as a synthon for C-C coupling reactions that exploit CO as a carbene or carbyne precursor. The synthesis and reactivities of iron(carbenes) and (carbynes) with hydrogen will also be investigated. In addition to the reductive degradation of carbon dioxide which may have important ramifications for the reduction of greenhouse gases and the development of new methods of carbon management, this research will encourage undergraduate and graduate students to become sensitive to energy conversion issues as they enter their chemical careers.