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Updated: Jun 22, 2025

Preparation of Polyoxometalate-based Photo-responsive Membranes for the Photo-activation of Manganese Oxide Catalysts
Published on: August 7, 2018
Photolysis-driven bond activation by thorium and uranium tetraosmate polyhydride complexes
Christopher Z Ye1, Iker Del Rosal2, Sheridon N Kelly1
1Department of Chemistry, Chemical Sciences Division, Lawrence Berkeley National Laboratory, University of California Berkeley California 94720 USA arnold@berkeley.edu.
Abstract:
Transition metal multimetallic complexes have seen intense study due to their unique bonding and potential for cooperative reactivity, but actinide-transition metal (An-TM) species are far less understood. We have synthesized uranium- and thorium-osmium heterometallic polyhydride complexes in order to study An-Os bonding and investigate the reactivity of An-Os interactions. Computational studies suggest the presence of a significant bonding interaction between the actinide center and the four coordinated osmium centers supported by bridging hydrides. Upon photolysis, these complexes undergo intramolecular C-H activation with the formation of an Os-Os bond, while the thorium complex may activate an additional C-H bond of the benzene solvent, resulting in a μ-η1,η1 phenyl ligand across one Th-Os interaction.
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