Copper/Zinc-Directed Heterometallic Uranyl-Organic Polycatenating Frameworks: Synthesis, Characterization, and Anion-Dependent Structural Regulation
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https://figshare.com/articles/dataset/Copper_Zinc-Directed_Heterometallic_Uranyl-Organic_Polycatenating_Frameworks_Synthesis_Characterization_and_Anion-Dependent_Structural_Regulation/3914823
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资源简介：
By employing a multidentate ligand,
2,2′-bipyridine-5,5′-dicarboxylic acid (H2bpdc), with both O-donors and N-donors, five uranyl-Cu(II)/Zn(II)
heterometallic coordination polymers, (UO2)Cu(μ4-bpdc)(μ3-bpdc) (1-Cu),
(UO2)Zn(μ4-bpdc)(μ3-bpdc) (1′-Zn), (UO2)CuCl(μ3-bpdc)(μ2-Hbpdc)(H2O) (2-Cu), (UO2)2Cu2Cl2(μ3-bpdc)2(μ2-Hbpdc)2(H2O)3·2H2O (2-Cu′), and (UO2)2Zn(μ3-SO4)(μ4-bpdc)(μ3-bpdc)(H2O)3 (3-Zn), were prepared under hydrothermal conditions. Thermal stability
and luminescent properties of 1-Cu, 1′-Zn, 2-Cu, and 3-Zn were also investigated.
Isostructural compounds 1-Cu and 1′-Zn both have a three-dimensional (3D) framework built by polycatenating
of two sets of paralleling two-dimensional (2D) grids with octahedral
transition metal cations (Cu or Zn) as the cross-linking nodes. As
far as we know, compounds 1-Cu and 1′-Zn are the first two cases that possess polycatenated networks in heterometallic
uranyl-organic coordination polymers. Compound 2-Cu contains
3-fold interpenetrated 2D networks which are built by the connection
of [(UO2)2(bpdc)2(Hbpdc)2]2– secondary building units and Cu(II).
A one-dimensional tilted ladder-like structure in 2-Cu′ is constructed by uranyl-bpdc chains connected by Cu(II) and Hbpdc–. Compound 3-Zn displays a layered-like
2D network contain an unusual [(UO2)2Zn(μ3-SO4)] unit. Interestingly, different
anions could lead to the change of coordination sites of transition
metal cations, resulting in structural diversity of heterometallic
uranyl-organic frameworks.
创建时间：
2016-10-11
