Directional Ionic Bonds

Nonpolar shields impart directionality to ionic bonds to provide an alternative to hydrogen bonds and other directional noncovalent interactions for the structuring of molecules and materials. For the introduction of directional ionic bonds, see JACS 2023.

Spatial anion control in catalysis

Spatial control of anion geometry on transition metals can provide highly sophisticated catalysts for difficult reactions, such as the direct activation of inert CH bonds. For the introduction of the spatial anion control concept, see JACS 2020.

Direct C–H activation

The functionalizations of  C–H bonds in mild conditions without the need for directing groups can provide transformative methodologies for organic synthesis. We make new catalysts and develop new concepts to enable such reactions in mild conditions. For C–H arylation of arenes at room temperature, see JACS 2020, ACIE 2022.

Coordination chemistry

Coordination chemistry provides essential insights for the design of advanced catalysts. We rationally design transition metal precatalysts and study coordination geometries of potential catalysts using new sophisticated anions. For example, see JACS 2020, CEJ 2024.