Issue 83, 2020

Polarised covalent thorium(iv)– and uranium(iv)–silicon bonds

Abstract

We report the synthesis and characterisation of isostructural thorium(IV)– and uranium(IV)–silanide actinide (An) complexes, providing an opportunity to directly compare Th–Si and U–Si chemical bonds. Quantum chemical calculations show significant and surprisingly similar An%:Si%, 7s-, 6d-, and 5f-orbital contributions from both elements in polarised covalent An–Si bonds, and marginally greater covalency in the U–Si vs. Th–Si linkages.

Graphical abstract: Polarised covalent thorium(iv)– and uranium(iv)–silicon bonds

Supplementary files

Article information

Article type
Communication
Submitted
07 Sep 2020
Accepted
14 Sep 2020
First published
14 Sep 2020
This article is Open Access
Creative Commons BY license

Chem. Commun., 2020,56, 12620-12623

Polarised covalent thorium(IV)– and uranium(IV)–silicon bonds

B. L. L. Réant, V. E. J. Berryman, J. A. Seed, A. R. Basford, A. Formanuik, A. J. Wooles, N. Kaltsoyannis, S. T. Liddle and D. P. Mills, Chem. Commun., 2020, 56, 12620 DOI: 10.1039/D0CC06044E

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