The formation of carbon chains by the coupling of CO x ( x = 1 or 2) units on transition metals is a fundamental step relevant to Fischer-Tropsch catalysis. Fischer-Tropsch catalysis produces energy dense liquid hydrocarbons from synthesis gas (CO and H2) and has been a mainstay of the energy economy since its discovery nearly a century ago. Despite detailed studies aimed at elucidating the steps of catalysis, experimental evidence for chain growth (C n → C n+1; n ≥ 2) from the coupling of CO units on metal complexes is, to the best of our knowledge, unprecedented. In this paper, we show that carbon chains can be grown from sequential reactions of CO or CO2 with a transition metal carbonyl complex. By exploiting the cooperative effect of transition and main group metals, we document the first example of chain propagation from sequential coupling of CO units (C1 → C3 → C4), along with the first example of incorporation of CO2 into the growing carbon chain.

中文翻译：

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通过 CO 和 CO2 与 [W(CO)6] 和铝 (I) 还原剂的顺序反应生成碳链

通过在过渡金属上偶联 CO x (x = 1 或 2) 单元形成碳链是与费托催化相关的基本步骤。Fischer-Tropsch 催化从合成气（CO 和 H2）生产能量密集的液态烃，自近一个世纪前被发现以来一直是能源经济的支柱。尽管详细的研究旨在阐明催化步骤，但据我们所知，从 CO 单元在金属配合物上耦合产生的链增长（C n → C n+1；n ≥ 2）的实验证据是前所未有的。在本文中，我们展示了碳链可以从 CO 或 CO2 与过渡金属羰基络合物的连续反应中生长。通过利用过渡金属和主族金属的协同作用，