Two-Electron Reduction of a U(VI) Complex with Al(C<sub>5</sub>Me<sub>5</sub>)
作者:Robert J. Ward、Iker Del Rosal、Danielle N. Chirdon、Steven P. Kelley、Michael L. Tarlton、Laurent Maron、Justin R. Walensky
DOI:10.1021/acs.inorgchem.0c03036
日期:2020.11.16
The reduction of U(VI) to U(IV) is rare, especially in one step, and not observed electrochemically as a one-wave, two-electron couple. Here, we demonstrate that reduction of the uranium(VI) bis(imido) complex, (C5Me5)2U[═N(4-OiPrC6H4)]2, is readily accomplished with Al(C5Me5), forming the bridging uranium(IV)/aluminum(III) imido complex (C5Me5)2U[μ2-N(4-OiPrC6H4)]2Al(C5Me5). The structure and bonding
U(VI)还原为U(IV)的情况很少见,尤其是在一个步骤中,并且在电化学上没有观察到为单波,两电子对。在这里,我们证明了用Al(C 5)可以很容易地完成铀(VI)双(酰亚胺基)配合物(C 5 Me 5)2 U [═N(4-O i PrC 6 H 4)] 2的还原。箱5),在形成桥接铀(IV)/铝(III)亚氨基配合物(C 5箱5)2 U [μ 2 -N(4-O我PRC 6 ħ 4)] 2的Al(C 5我5)。通过电化学测量与密度泛函理论计算相结合,研究了桥接亚氨基配合物的结构和键合。
Azide Addition to an Endohedral Metallofullerene: Formation of Azafulleroids of Sc<sub>3</sub>N@<i>I</i><sub><i>h</i></sub>-C<sub>80</sub>
作者:Tong-Xin Liu、Tao Wei、San-E Zhu、Guan-Wu Wang、Mingzhi Jiao、Shangfeng Yang、Faye L. Bowles、Marilyn M. Olmstead、Alan L. Balch
DOI:10.1021/ja305446v
日期:2012.7.25
The reaction of an organic azide with an endohedral metallofullerene has been investigated for the first time. Isomeric [5,6)- and [6,6]-azafulleroids can be obtained from the thermal reaction of Sc3N@I-h-C-80 with 4-isopropoxyphenyl azide, while photoirradiation leads exclusively to the [6,6]-azafulleroid. An unprecedented thermal interconversion between the two isomeric azafulleroids has also been discovered.