作者:Zihang Qiu、Hao Deng、Constanze N. Neumann
DOI:10.1002/anie.202401375
日期:2024.4.24
Heterogenization of Rh(II) porphyrin catalysts in a metal–organic framework is crucial for catalyst turnover in thermal olefin hydrosilylation and hydrogermylation. Unlike MOF-supported metalloradical catalysts, homogeneous analogues convert to closed shell species that obstruct catalytic turnover. Site-isolated Rh(II) metalloradicals are readily accessed via MOF synthesis with a linker containing
金属有机骨架中 Rh(II) 卟啉催化剂的多相化对于热烯烃氢化硅烷化和氢甲酰化中的催化剂周转至关重要。与 MOF 支持的金属自由基催化剂不同,均相类似物会转化为阻碍催化周转的闭壳物质。位点隔离的 Rh(II) 金属自由基可以通过含有金属烷基键的连接基的 MOF 合成,然后进行 Rh−C 光解来轻松获得。