摘要
A unique metal-organic framework [Cd2（L）1.5（μ3-OH）（H2 O）2 ]·2H2 O（1, H2 L = 2,5-dibenzoylterephthalic acid） has been synthesized under hydrothermal conditions, and characterized by single-crystal X-ray diffractions, elemental analyses, IR spectra and fluorescence spectrum. The compound is of triclinic system, space group P1, C33 H27 CdO14, Mr = 870.33, a = 12.2939（17）, b = 12.5135（9）, c = 13.2046（10）, α = 115.3190（10）, β = 96.9140（10）, γ = 109.7950（10）°, V = 1641.6（3）3, Z = 2, Dc = 1.761 g/cm3, F（000） = 862, μ（MoK） = 1.366 mm-1, Rint = 0.0148, R = 0.0240 and wR = 0.0639 for 5995 observed reflections with I 〉 2σ（I）. X-ray analysis shows that the title complex exhibits a 3D framework with（412·63） topology, in which the tetra-nuclear [Cd4（μ3-OH）2 ] clusters act as 6-connected nodes, and the L ligands can be simplified to be linear connectors. Moreover, the thermal stability and fluorescence have been studied in detail.
A unique metal-organic framework [Cd2（L）1.5（μ3-OH）（H2 O）2 ]·2H2 O（1, H2 L = 2,5-dibenzoylterephthalic acid） has been synthesized under hydrothermal conditions, and characterized by single-crystal X-ray diffractions, elemental analyses, IR spectra and fluorescence spectrum. The compound is of triclinic system, space group P1, C33 H27 CdO14, Mr = 870.33, a = 12.2939（17）, b = 12.5135（9）, c = 13.2046（10）, α = 115.3190（10）, β = 96.9140（10）, γ = 109.7950（10）°, V = 1641.6（3）3, Z = 2, Dc = 1.761 g/cm3, F（000） = 862, μ（MoK） = 1.366 mm-1, Rint = 0.0148, R = 0.0240 and wR = 0.0639 for 5995 observed reflections with I 〉 2σ（I）. X-ray analysis shows that the title complex exhibits a 3D framework with（412·63） topology, in which the tetra-nuclear [Cd4（μ3-OH）2 ] clusters act as 6-connected nodes, and the L ligands can be simplified to be linear connectors. Moreover, the thermal stability and fluorescence have been studied in detail.
基金
supported by the NNSFC(No.20871023)
the Jilin Provincial Science Research Foundation of China(No.20101549)
Xiaonei Foundation of Changchun University of Technology
The 12th Five-Year Plan for Science&Technology Research sponsored by Department of Education of Jilin Province(Nos.130 and 146,2013)
