Uranium Tetrakis-Aryloxide Derivatives Supported by Tetraazacyclododecane: Synthesis of Air-Stable, Coordinatively-Unsaturated U(IV) and U(V) Complexes

被引:19
|
作者
Hummer, Julian [1 ]
Heinemann, Frank W. [1 ]
Meyer, Karsten [1 ]
机构
[1] Friedrich Alexander Univ Erlangen Nurnberg, Dept Chem & Pharm, Inorgan Chem, Egerlandstr 1, D-91058 Erlangen, Germany
关键词
ACTIVATION; REACTIVITY; CHEMISTRY; TRIAZACYCLONONANE; MOLECULES; LIGANDS; VALENT; FORM; OXO;
D O I
10.1021/acs.inorgchem.6b02123
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
We present the synthesis, characterization, and one -electron oxidation of two uranium(IV) complexes, coordinated to the cyclen-anchored tetrakis(aryloxide) ligands tetrakishy hydroxybenzyl- 1, 4,7, 1 0 tetraazacyclododecane, ((ArOH)-Ar-R,R)(4)cyclen; R = Bu-t, Me. The new uranium(IV) and (V) complexes exhibit an eight -coordinate, tetragonal ligand environment, effecting exceptional stability of the coordinatively unsaturated uranium compounds. Cyclic voltammetry studies reveal redox events ranging from- tri- to hexavalent species, covering an electrochemical window of similar to 4 V.
引用
收藏
页码:3201 / 3206
页数:6
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