Synthesis and Structure of Nitride-Bridged Uranium(III) Complexes
Synthesis and Structure of Nitride-Bridged Uranium(III) Complexes
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DOI：
10.1021/jacs.5b12620
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发表时间：
2016-02-17
影响因子：
15
通讯作者：
Mazzanti, Marinella
中科院分区：
文献类型：
--
作者：
Chatelain, Lucile;Scopelliti, Rosario;Mazzanti, Marinella
氮化物桥连的二铀（IV）络合物Cs[{U（OSi（（OBu）-Bu-t）（3））（3）}（2）（μ-N）]的还原提供了含有处于+III氧化态的铀的氮化铀络合物的第一个实例。本文报道了两个含异金属碎片Cs-2[U-III -N-U-IV]和Cs-3[U-III -N-U-III]的氮化物桥联配合物的晶体学特征。两个或三个Cs+阳离子结合的氮化物基团的存在下，这些配合物的隔离的关键。尽管氮化物基团与两个铀和两个或三个Cs+阳离子多重结合，但这些络合物将氮化物基团转移到CS2以提供SCN-和二硫化铀（IV）。
The reduction of the nitride-bridged diuranium(IV) complex Cs[{U(OSi((OBu)-Bu-t)(3))(3)}(2)(mu-N)] affords the first example of a uranium nitride complex containing uranium in the +III oxidation state. Two nitride-bridged complexes containing the heterometallic fragments Cs-2[U-III - N - U-IV] and Cs-3[U-III - N - U-III] have been crystallographically characterized. The presence of two or three Cs+ cations binding the nitride group is key for the isolation of these complexes. In spite of the fact that the nitride group is multiply bound to two uranium and two or three Cs+ cations, these complexes transfer the nitride group to CS2 to afford SCN- and uraniurn(IV) disulfide.