Department of Pharmaceutical and Biological Chemistry, UCL School of Pharmacy, 29-39 Brunswick Square, Bloomsbury, WC1N 1AX, London, United Kingdom.
Chemistry. 2021 Jul 7;27(38):9721-9726. doi: 10.1002/chem.202100348. Epub 2021 May 26.
Recent research endeavors have established that the mechanochemical activation of piezoelectric materials can open new avenues in redox chemistry. Impact forces, such as those imparted by a ball mill, have been shown to transform piezoelectric materials such as barium titanate (BaTiO ) into a highly polarized state, which can then donate an electron to a suitable oxidant and receive an electron from a suitable reductant, mimicking established photoredox catalytic cycles. Proof-of-concept studies have elucidated that mechanoredox chemistry holds great potential in sustainable and efficient radical-based synthesis.
最近的研究努力表明,压电材料的机械化学活化可以为氧化还原化学开辟新途径。研究表明,冲击压力(如球磨机施加的压力)可以将压电材料(如钛酸钡(BaTiO ))转化为高度极化状态,然后将电子捐赠给合适的氧化剂,并从合适的还原剂接收电子,模拟已建立的光氧化还原催化循环。概念验证研究表明,机械氧化还原化学在可持续和高效的基于自由基的合成中具有巨大潜力。