Evidence for ligand- and solvent-induced disproportionation of uranium(IV).
Evidence for ligand- and solvent-induced disproportionation of uranium(IV).
复制标题
铀(IV)的配体和溶剂诱导的反硝化作用的证据。
DOI:
10.1038/s41467-021-25151-z
复制
发表时间:
2021-08-10
影响因子:
16.6
通讯作者:
Liddle ST
中科院分区:
文献类型:
--
作者:
Du J;Douair I;Lu E;Seed JA;Tuna F;Wooles AJ;Maron L;Liddle ST
Disproportionation, where a chemical element converts its oxidation state to two different ones, one higher and one lower, underpins the fundamental chemistry of metal ions. The overwhelming majority of uranium disproportionations involve uranium(III) and (V), with a singular example of uranium(IV) to uranium(V/III) disproportionation known, involving a nitride to imido/triflate transformation. Here, we report a conceptually opposite disproportionation of uranium(IV)-imido complexes to uranium(V)-nitride/uranium(III)-amide mixtures. This is facilitated by benzene, but not toluene, since benzene engages in a redox reaction with the uranium(III)-amide product to give uranium(IV)-amide and reduced arene. These disproportionations occur with potassium, rubidium, and cesium counter cations, but not lithium or sodium, reflecting the stability of the corresponding alkali metal-arene by-products. This reveals an exceptional level of ligand- and solvent-control over a key thermodynamic property of uranium, and is complementary to isolobal uranium(V)-oxo disproportionations, suggesting a potentially wider prevalence possibly with broad implications for the chemistry of uranium. Disproportion of uranium(IV) is rare, as it is usually the stable product of uranium(III) or (V) disproportionation. Here, the authors report uranium(IV) disproportionation to uranium(III) and (V) revealing ligand and solvent control over a key thermodynamic property of uranium
登录
查看更多内容
影响因子:
15
作者:
BRENNAN, JG;ANDERSEN, RA;ZALKIN, A
通讯作者:
ZALKIN, A
影响因子:
15
作者:
Brown, Jessie L.;Fortier, Skye;Hayton, Trevor W.
通讯作者:
Hayton, Trevor W.
影响因子:
4.9
作者:
Gardner, Benedict M.;Liddle, Stephen T.
通讯作者:
Liddle, Stephen T.
影响因子:
8.4
作者:
Gardner BM;King DM;Tuna F;Wooles AJ;Chilton NF;Liddle ST
通讯作者:
Liddle ST
影响因子:
4.4
作者:
BECKE, AD
通讯作者:
BECKE, AD