Uranyl-Promoted Peroxide Generation: Synthesis and Characterization of Three Uranyl Peroxo [(UO2)2(O2)] Complexes

被引:37
作者
Thangavelu, Sonia G. [1 ]
Cahill, Christopher L. [1 ]
机构
[1] George Washington Univ, Dept Chem, Washington, DC 20052 USA
关键词
CRYSTAL-STRUCTURES; ORGANIC ASSEMBLIES; LUMINESCENCE; 1ST-PRINCIPLES; DYNAMICS; STUDTITE; NITRATE; ORIGIN; LIGAND; IONS;
D O I
10.1021/ic502767k
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Three novel uranyl(VI) peroxide complexes, [(UO2)(2)(CH3COO)(2)(O-2)(C10H8N2)] (1), [(UO2)(2)(CH3COO)(2)(O-2)(C12H12N2)] (2), and [(UO2)(3)(CH3COO)(4)(O-2) (C15H11N3] (3), have been synthesized and characterized by single-crystal X-ray diffraction, powder X-ray diffraction, and luminescence spectroscopy. Each of these structures feature a [(UO2)(2)(O-2)] dimer with additional coordination by acetate, 2,2'-bipyridine (BP), 5,5'-dimethyl-2,2'-bipyridine (MeBPY), or 2,2':6,2 ''-terpyridine (TPY). Compound 3 consists of an additional uranyl unit functionalized with a TPY donor ligand. The presence of the peroxo ligand in 1-3 is due to in situ generation of peroxide when preparative solutions of 1-3 were exposed to ambient light and/or sunlight.
引用
收藏
页码:4208 / 4221
页数:14
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