Department of Civil Engineering and Geological Sciences, University of Notre Dame, 156 Fitzpatrick Hall, Notre Dame, Indiana 46556, USA.
Inorg Chem. 2009 Dec 7;48(23):10907-9. doi: 10.1021/ic9020355.
Bowl (U(16)) and crown-shaped clusters (U(20R) and U(24R)) containing 16, 20, and 24 uranyl peroxide polyhedra self-assemble in alkaline aqueous solution under ambient conditions. Structural analyses of crystallized clusters provided details of their topologies. Each contains uranyl hexagonal bipyramids in which two cis edges are peroxide, with a third edge defined by two OH groups, as well as hexagonal bipyramids in which three edges are peroxide. These are the first open uranyl peroxide clusters reported, and they join a growing family of complex cluster topologies based on uranium that hold promise for nanoscale control of chemistry in nuclear energy cycles.
在环境条件下，在碱性水溶液中自组装成包含 16、20 和 24 个铀过氧化物多面体的碗状（U(16)) 和冠状簇（U(20R) 和 U(24R))。结晶簇的结构分析提供了它们拓扑结构的详细信息。每个簇都包含铀的六方双锥，其中两个顺式边缘是过氧化物，第三个边缘由两个 OH 基团定义，以及三个边缘是过氧化物的六方双锥。这些是第一批报道的开放铀过氧化物簇，它们加入了一个不断增长的基于铀的复杂簇拓扑家族，有望在核能循环中实现纳米级化学控制。
