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Solvothermal synthesis and structural characterization of a novel erbium(III)-carboxylate polymeric complex

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Abstract

A novel erbium(III)-carboxylate polymeric complex [{Er(H2btec)2/4(btec)3/6(H2O)}·2H2O] n , simplified as ECPC, (H4btec=1,2,4,5-benzenetetracarboxylic acid) was synthesized under solvothermal conditions (H2O/acetic acid). ECPC obtained was characterized by differential thermal analysis/thermogravimetry (DTA/TG), single-crystal X-ray diffraction, elemental analysis and FT-IR analysis techniques. The result of single-crystal X-ray diffraction analysis shows that the ECPC crystallizes in monoclinic symmetry, and the space group P2(1)/n, a=10.6933(15) Å, b=7.1243(10) Å, c=17.092(2) Å, α=γ=90°, β=97.109(2)°, V=1292.1(3) Å3, Z=4, R 1=0.0286, wR 2=0.0686. ECPC demonstrates a 3-D supramolecular framework containing nine-coordinate erbium centers and channels. The uncoordinated water molecules occupy the channels in ECPC. The results of TG/DTA, IR and elemental analysis performed also give positive information of the proposed crystal structure.

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Acknowledgement

This work was supported by the Doctoral Foundation of Jinan University.

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Correspondence to Q. B. Bo.

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Bo, Q.B., Sun, Z.X., Sheng, Y.L. et al. Solvothermal synthesis and structural characterization of a novel erbium(III)-carboxylate polymeric complex. Struct Chem 17, 609–615 (2006). https://doi.org/10.1007/s11224-006-9107-0

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  • DOI: https://doi.org/10.1007/s11224-006-9107-0

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