A binuclear thorium complex with a Th–O–Th unit
Complex 1, [(Trapen<sup>TMS</sup>)ThCl, Trapen<sup>TMS</sup> = N(CH<sub>2</sub>Ph(<i>o</i>-NSiMe<sub>3</sub>)<sub>3</sub>)], reacts with sodium azide to afford the dimeric complex 2, [(Trapen<sup>TMS</sup>N<sub>3</sub>Th)<sub>2</sub>]. Treatment of 2 with KC<sub>8</sub> yields a binuclear oxo-bridged thorium complex 3, [(Trapen<sup>TMS</sup>Th)<sub>2</sub>(µ-O)]. The crystal structure of 3 reveals a highly symmetrical configuration with a Th-O-Th unit, and the Th-O bond length is 2.271(2) Å. Density functional theory calculations indicate significant covalent character in the Th-O-Th interaction, surpassing that in related Th-N-Th systems and the Th-O bonding in complex 3 displays stronger covalent interactions.
Authors
- Cong‐Zhi Wang (ORCID: https://orcid.org/0000-0002-9983-4368)
- Li‐Yong Yuan (ORCID: https://orcid.org/0000-0003-4261-8717)
- Xiangyu Liu (ORCID: https://orcid.org/0000-0001-8864-3411)
- Kang Liu (ORCID: https://orcid.org/0000-0002-4640-0849)
- Wei‐Qun Shi (ORCID: https://orcid.org/0000-0001-9929-9732)
- Yichen Huang (ORCID: https://orcid.org/0000-0001-6964-3993)
- Yan Guo (ORCID: https://orcid.org/0009-0000-8569-8708)
- Yifei He
- Jipan Yu
Institutions
- Shanghai Jiao Tong University (CN)
- Chinese Academy of Sciences (CN)
- Ningxia University (CN)
- China University of Geosciences (Beijing) (CN)
- Key Laboratory of Nuclear Radiation and Nuclear Energy Technology (CN)
- Institute of High Energy Physics (CN)
Publication Details
- Journal
- RSC Advances
- Published
- 2025-01-01
- DOI
- https://doi.org/10.1039/d5ra09492e
- Primary Topic
- Organometallic Complex Synthesis and Catalysis
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- National Natural Science Foundation of China
- China Postdoctoral Science Foundation
- Natural Science Foundation of Ningxia Province