Architectural Stabilization of a Gold(III) Catalyst in Metal-Organic Frameworks

John S Lee; Eugene A Kapustin; Xiaokun Pei; Sebastián Llopis; Omar M Yaghi; F Dean Toste

doi:10.1016/j.chempr.2019.10.022

Architectural Stabilization of a Gold(III) Catalyst in Metal-Organic Frameworks

Chem. 2020 Jan 9;6(1):142-152. doi: 10.1016/j.chempr.2019.10.022. Epub 2019 Nov 25.

Authors

John S Lee¹, Eugene A Kapustin^{1

2

3}, Xiaokun Pei^{1

2

3}, Sebastián Llopis¹, Omar M Yaghi^{1

2

3

4

5}, F Dean Toste^{1

6}

Affiliations

¹ Department of Chemistry, University of California, Berkeley, CA, USA.
² Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA.
³ Kavli Energy NanoSciences Institute at Berkeley, Berkeley, CA, USA.
⁴ Berkeley Global Science Institute, Berkeley, CA, USA.
⁵ UC Berkeley-KACST Joint Center of Excellence for Nanomaterials for Clean Energy Applications, King Abdulaziz City for Science and Technology, Riyadh, Saudi Arabia.
⁶ Lead Contact.

Abstract

Unimolecular decomposition pathways are challenging to address in transition-metal catalysis and have previously not been suppressed via incorporation into a solid support. Two robust metal-organic frameworks (IRMOF-10 and bio-MOF-100) are used for the architectural stabilization of a structurally well-defined gold(III) catalyst. The inherent rigidity of these materials is utilized to preclude a unimolecular decomposition pathway - reductive elimination. Through this architectural stabilization strategy, decomposition of the incorporated gold(III) catalyst in the metal-organic frameworks is not observed; in contrast, the homogeneous analogue is prone to decomposition in solution. Stabilization of the catalyst in these metal-organic frameworks precludes leaching and enables recyclability, which is crucial for productive heterogeneous catalysis.

Grants and funding

R35 GM118190/GM/NIGMS NIH HHS/United States