Department of Chemistry, University of Rochester, Rochester, NY 14627, USA.
Chem Commun (Camb). 2022 May 17;58(40):6004-6007. doi: 10.1039/d2cc01228f.
We report accelerated rates of oxygen-atom transfer from a polyoxovanadate-alkoxide cluster following functionalization with a 4-butylcalix[4]arene ligand. Incorporation of this electron withdrawing ligand modifies the electronics of the metal oxide core, favoring a mechanism in which the rate of oxygen-atom transfer is limited by outer-sphere electron transfer.
我们报告了在 4-丁基杯[4]芳烃配体功能化后,多氧钒氧烷-醇盐簇中氧原子转移的加速速率。这种吸电子配体的掺入改变了金属氧化物核心的电子性质,有利于这样一种机制,其中氧原子转移的速率受外球电子转移的限制。