Cage-like Fe,Na-Germsesquioxanes: Structure, Magnetism, and Catalytic Activity

Angew Chem Int Ed Engl. 2016 Dec 5;55(49):15360-15363. doi: 10.1002/anie.201607189. Epub 2016 Nov 7.

Abstract

A series of four unprecedented heterometallic metallagermsesquioxanes were synthesized. Their cage-like architectures have a unique type of molecular topology consisting of the hexairon oxo {Fe6 O19 } core surrounded in a triangular manner by three cyclic germoxanolates [PhGe(O)O]5 . This structural organization induces antiferromagnetic interactions between the FeIII ions through the oxygen atoms. Evaluated for this first time in catalysis, these compounds showed a high catalytic activity in the oxidation of alkanes and the oxidative formation of benzamides from alcohols.

Keywords: cage compounds; homogeneous catalysis; metallagermsesquioxanes; oxidation; structure elucidation.

Publication types

  • Research Support, Non-U.S. Gov't