Merging Photoredox and Organometallic Catalysts in a Metal–Organic Framework Significantly Boosts Photocatalytic Activities
作者:Yuan‐Yuan Zhu、Guangxu Lan、Yingjie Fan、Samuel S. Veroneau、Yang Song、Daniel Micheroni、Wenbin Lin
DOI:10.1002/anie.201809493
日期:2018.10.22
Metal–organic frameworks (MOFs) have been extensively used for single‐site catalysis and light harvesting, but their application in multicomponent photocatalysis is unexplored. We report here the successful incorporation of an IrIII photoredox catalyst and a NiII cross‐coupling catalyst into a stable Zr12 MOF, Zr12‐Ir‐Ni, to efficiently catalyze C−S bond formation between various aryl iodides and thiols
金属有机框架(MOF)已广泛用于单点催化和光收集,但尚未探索其在多组分光催化中的应用。我们在此报告成功将Ir III光氧化还原催化剂和Ni II交叉偶联催化剂掺入稳定的Zr 12 MOF,Zr 12 -Ir-Ni中,以有效催化各种芳基碘化物和硫醇之间的C-S键形成。在Zr 12中Ir III和Ni II催化成分彼此接近(约0.6 nm)‐Ir‐Ni极大地促进了电子和巯基从Ir到Ni中心的转移,达到38 500的周转数,比同类均质材料高一个数量级。这项工作突显了在MOF中合并光氧化还原和有机金属催化剂以实现具有挑战性的有机转化的机会。