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Polarised Covalent Thorium(IV)- and Uranium(IV)-Silicon Bonds

preprint
submitted on 29.07.2020 and posted on 29.07.2020 by Benjamin Reant, Victoria E. J. Berryman, John A. Seed, Annabel Basford, Alasdair Formanuik, Ashley J. Wooles, Nikolas Kaltsoyannis, Stephen T. Liddle, David Mills
We report the synthesis and characterisation of isostructural thorium(IV)- and uranium(IV)- silanide complexes, providing the first structurally authenticated Th-Si bond and a rare example of a molecular U-Si bond. These complexes therefore present the first opportunity to directly compare the chemical bonding of Th-Si and U-Si bonds. Quantum chemical calculations show significant and surprisingly similar 7s, 6d, and 5f orbital contributions from both actinide (An) elements in polarised covalent An-Si bonds

Funding

EPSRC EP/P002560/1, EP/N022122/1, EP/P001386/1, EP/M027015/1

ERC CoG612724

University of Manchester

History

Email Address of Submitting Author

david.mills@manchester.ac.uk

Institution

University of Manchester

Country

UK

ORCID For Submitting Author

0000-0003-1575-7754

Declaration of Conflict of Interest

No conflict of interest

Exports