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Polarised Covalent Thorium(IV)- and Uranium(IV)-Silicon Bonds
ChemRxiv Pub Date : 2020-07-29 , DOI: 10.26434/chemrxiv.12732137.v1
Benjamin Reant , Victoria E. J. Berryman , John A. Seed , Annabel Basford , Alasdair Formanuik , Ashley J. Wooles , Nikolas Kaltsoyannis , Stephen T. Liddle , David Mills 1
Affiliation  

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

中文翻译:

极化共价Thor(IV)-和铀(IV)-硅键

我们报告了异结构th(IV)-和铀(IV)-硅烷化物配合物的合成和表征,提供了第一个结构上经过认证的Th-Si键和分子U-Si键的罕见实例。因此,这些络合物为直接比较Th-Si和U-Si键的化学键提供了第一个机会。量子化学计算显示极化共价An-Si键中both系元素(An)的两个元素在7s,6d和5f轨道上的贡献非常显着且令人惊讶
更新日期:2020-07-29
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