Use of 2,2-Bipyrimidine for the Preparation of UO22+-3d Diphosphonates
Use of 2,2-Bipyrimidine for the Preparation of UO22+-3d Diphosphonates
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DOI：
10.1021/cg500972w
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发表时间：
2014-10
影响因子：
3.8
通讯作者：
P. Adelani;Nathaniel D. Cook;P. Burns
中科院分区：
文献类型：
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作者：
P. Adelani;Nathaniel D. Cook;P. Burns
在温和的水热条件下，以高产率结晶了三种新的多维LiUO 22 +-3d三维配合物：[Mn（H2O）]2[（UO2）4（PO3C6H4PO3）3（bipym）]·2H2O（1），[Ni（H2O）]2[（UO2）3（O3 PC6 H4 PO 3）（O3 PC6 H4 PO 3 H）2（bipym）]·6 H2O（2），和Zn[（UO 2）（HO 3 PC6 H4 PO 3）（HO 3 PC6 H4 PO 3 H）0.5（bipym）0.5]（3），其中bipym = 2，2-联嘧啶。1的结构由铀酰五角双锥的共边二聚体组成，这些二聚体通过刚性苯基间隔基连接，形成柱撑三维网络。该化合物的显著之处在于[Mn 2（H2O）2（bipym）]4+部分被并入膦酸铀酰骨架内而不降低整体结构的维度。化合物2由四氢铀酰和五角双锥组成，它们通过膦酸酯基团连接以形成具有被[Ni 2（H2O）2（bipym）2]4+部分占据的通道的柱撑三维框架。在化合物3中，铀酰五角双锥的共边二聚体通过膦配体连接在一起。
Three new multidimensional bimetallic UO22+-3d three-dimensional complexes were crystallized in high yield under mild hydrothermal conditions: [Mn(H2O)]2[(UO2)4(PO3C6H4PO3)3(bipym)]·2H2O (1), [Ni(H2O)]2[(UO2)3(O3PC6H4PO3)(O3PC6H4PO3H)2(bipym)]·6H2O (2), and Zn[(UO2)(HO3PC6H4PO3)(HO3PC6H4PO3H)0.5(bipym)0.5] (3), where bipym = 2,2-bipyrimidine. The structure of 1 is composed of edge-sharing dimers of uranyl pentagonal bipyramids that are linked by rigid phenyl spacers to form pillared three-dimensional networks. This compound is remarkable in that the [Mn2(H2O)2(bipym)]4+ moiety is incorporated within the uranyl phosphonate frameworks without reducing the dimensionality of the overall structure. Compound 2 consists of uranyl tetragonal and pentagonal bipyramids that are linked by phosphonate groups to form a pillared three-dimensional framework with channels that are occupied by the [Ni2(H2O)2(bipym)2]4+ moiety. In compound 3, edge-sharing dimers of uranyl pentagonal bipyramids are connected through the pho...