Cation-cation interactions between uranyl cations in a polar open-framework uranyl periodate.
Cation-cation interactions between uranyl cations in a polar open-framework uranyl periodate.
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DOI：
10.1021/ja031695h
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发表时间：
2004-02
影响因子：
15
通讯作者：
Tyler A. Sullens;R. A. Jensen;Tatiana Y. Shvareva;T. Albrecht‐Schmitt
中科院分区：
文献类型：
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作者：
Tyler A. Sullens;R. A. Jensen;Tatiana Y. Shvareva;T. Albrecht‐Schmitt
用温和的水热合成法合成了一种新型的碱金属铀酰高碘酸盐，式为A[(UO2)3(HIO6)(OH)(O)(H2O)].1.5H2O(A=Li，Na，K，Rb，Cs)。这些等结构化合物含有扭曲的UO7五方双锥，它们通过铀酰(UO22+)与铀酰阳离子相互作用连接在一起。这种相互作用是由相邻铀酰单元的赤道位置配位的单一轴向铀酰氧引起的。这些铀氧化物多面体进一步被IO6扭曲的八面体束缚，形成了一个开放的骨架结构，其通道中含有碱金属阳离子。
Novel open-framework alkali metal uranyl periodates, having the formula A[(UO2)3(HIO6)(OH)(O)(H2O)].1.5H2O (A = Li, Na, K, Rb, Cs), have been prepared through mild hydrothermal synthesis. These isostructural compounds contain distorted UO7 pentagonal bipyramids that are linked through a uranyl (UO22+) to uranyl cation-cation interaction. This interaction arises from a single axial uranyl oxygen coordinating at an equatorial site of an adjacent uranyl unit. These uranium oxide polyhedra are further bound by IO6 distorted octahedra creating an open-framework structure whose channels contain the alkali metal cations.