Polarised covalent thorium(iv)– and uranium(iv)–silicon bonds. Issue 83 (21st September 2020)

• Record Type: Journal Article
• Authors: Réant, Benjamin L. L.; Berryman, Victoria E. J.; Seed, John A.; Basford, Annabel R.; Formanuik, Alasdair; Wooles, Ashley J.; Kaltsoyannis, Nikolas; Liddle, Stephen T.; Mills, David P.
• Is Part Of: Chemical communications. Volume 56:Issue 83(2020)
• Page Start: 12620
• Page End: 12623
• Publication Date: 2020-09-21
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1039/d0cc06044e
• Languages: English
• ISSNs: 1359-7345

Abstract

Abstract : We report thorium- and uranium–silicon bonds in structurally analogous complexes with surprisingly similar actinide–silicon bonding regimes. 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.