Department of Chemistry, The George Washington University, 800 22nd Street, NW, Washington, DC 20052, United States.
Inorg Chem. 2015 May 4;54(9):4208-21. doi: 10.1021/ic502767k. Epub 2015 Apr 15.
Three novel uranyl(VI) peroxide complexes, [(UO2)2(CH3COO)2(O2)(C10H8N2)] (1), [(UO2)2(CH3COO)2(O2)(C12H12N2)] (2), and [(UO2)3(CH3COO)4(O2)(C15H11N3)2] (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(O2)] dimer with additional coordination by acetate, 2,2'-bipyridine (BPY), 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.
三种新型铀酰(VI)过氧化物配合物，[(UO2)2(CH3COO)2(O2)(C10H8N2)] (1)、[(UO2)2(CH3COO)2(O2)(C12H12N2)] (2) 和 [(UO2)3(CH3COO)4(O2)(C15H11N3)2] (3)，已经通过单晶 X 射线衍射、粉末 X 射线衍射和发光光谱学进行了合成和表征。这些结构中的每一个都具有[(UO2)2(O2)]二聚体，此外还通过乙酸盐、2,2'-联吡啶 (BPY)、5,5'-二甲基-2,2'-联吡啶 (MeBPY) 或 2,2':6,2″-三联吡啶 (TPY) 进行配位。化合物 3 由一个额外的铀酰单元组成，该单元用 TPY 供体配体功能化。1-3 中过氧配体的存在是由于 1-3 的制备溶液在暴露于环境光和/或阳光时原位生成了过氧化物。
