Syntheses and Characterization of Homochiral Three- dimensional Lanthanide-organic Frameworks Based

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Four isostructural lanthanide compounds formulated as {[Ln4(μ3-OH)4(L-asp)3- (H2O)10](ClO4)5·10H2O}n (Ln=Nd (1), Sm (2), Eu (3), Gd (4); asp=aspartic acid) were synthe- sized by a conventional solution reaction. Their structures were characterized by single-crystal X-ray diffraction, IR spectroscopy and elemental analyses (EA). It reveals that they crystallize in the chiral P212121 space group. Their structures feature a homochiral three-dimensional (3D) lan- thanide-organic framework, which contains a cubic [Ln4(μ3-OH)4]8+ cluster sub-building unit (SBU). Additionally, the photoluminescence property of Eu compound was investigated in the solid-state at room temperature. Four isostructural lanthanide compounds formulated as {Ln4 (μ3-OH) 4 (L-asp) 3- (H2O) 10] (ClO4) 5 · 10H2O} n Their structures were characterized by single-crystal X-ray diffraction, IR spectroscopy and elemental analyzes (EA). It reveals that they crystallize Their structures feature a homochiral three-dimensional (3D) lan-thanide-organic framework, which contains a cubic [Ln4 (μ3-OH) 4] 8+ cluster sub-building unit (SBU) , the photoluminescence property of Eu compound was investigated in the solid-state at room temperature.
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