Mukthar Nishya F M, Schley Nathan D, Ung Gaël
Department of Chemistry, University of Connecticut, Storrs, Connecticut 06269, USA.
Dalton Trans. 2020 Nov 25;49(45):16059-16061. doi: 10.1039/d0dt01095b.
We describe the synthesis of mixed-valent (Ln(ii)/Ln(iii)) dilanthanide complexes supported by a calix[4]pyrrole ligand. The complexes are obtained by one-electron reduction of Ln(iii)/Ln(iii) complexes and are alkali-metal- and halide-free. The complexes are designed to activate small molecules by taking advantage of both the base and the one-electron reductant contained in their structure. We demonstrate a proof-of-principle concept of this mechanism by activating water and silanol.
我们描述了由杯[4]吡咯配体支撑的混合价态（Ln(ii)/Ln(iii)）双镧系配合物的合成。这些配合物通过Ln(iii)/Ln(iii)配合物的单电子还原得到，且不含碱金属和卤化物。这些配合物旨在利用其结构中所含的碱和单电子还原剂来活化小分子。我们通过活化水和硅醇证明了这一机制的原理验证概念。
