A New Lanthanide Coordination Polymer with 4,4′-Oxybis (Benzoic Acid) Ligand: Hydrothermal Synthesis, Crystal Structure and Photoluminescence
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- Li, XX., Wei, ZQ., Yue, ST. et al. J Chem Crystallogr (2011) 41: 757. doi:10.1007/s10870-010-9969-2
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Self-assemblies of the organic ligand 4,4′-oxybis(benzoic acid) with metal salt (Eu3+) have led to one new complex, namely, Eu(oba)2(phen) (1) (oba = 4,4′-oxybis (benzoic acid), phen = 1,10-phenanthroline). The structure was determined by single crystal X-ray crystallography and further characterized by elemental analysis and IR spectra. X-ray diffraction analysis reveals that it crystallizes in the monoclinic C2/c space group with a = 13.4943(12) Å, b = 19.3737(18) Å, c = 27.359(2) Å, β = 99.539°, V = 7053.7(1) Å3, Z = 8, μ = 1.862, F(000) = 3376. The Eu(III) ions along the a-axis are bridged by oba ligand into infinite oval-like one-dimensional chain. Interestingly, because of the existing of hydrogen bonging (O5–H5···O6), the title complex further formed a 2D layer structure with an interlayer separation of ca. 19.3737(18) Å. The complex exhibits excellent fluorescence property.