Abstract
Four novel lanthanide-based coordination polymers, [Ln(PBDC)(HPBDC)(H2O)3] (H2PBDC=p-carboxylphenoxyacetate; Ln = La (1), Pr (2), Nd (3)) and [La2(PBDC)3(H2O)4] (4), have been prepared through hydrothermal synthetic methods. Compounds 1–3 are isomorphous and exhibit one-dimensional (1D) chain-like motifs, while compound 4 features a complicated three-dimensional (3D) architecture, which is designed and synthesized based on the inspiration from the structure characterization of compound 1. Under the similar reaction conditions, the carboxyl in compound 1 may be further deprotonated by adding the organic base of 2,2′-bipyridine. This subtle change caused a significant difference in the structures, from 1D chain of 1 to a 3D structure of 4. In addition, IR, UV-Vis, TGA and magenetic properties are also investigated in this paper.
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Supported by the National Creative Experiment Programs for University Students, Natural Science Foundation of Tianjin (Grant No. 07JCYBJC02000), Foundation for the Author of National Excellent Doctoral Dissertation of China (Grant No. 200732) and Program for New Century Excellent Talents in University (Grant No. NCET-07-0463).
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Chen, Z., Cui, P., Zhang, Y. et al. Synthesis, structure and property of serial p-carboxylphenoxyacetate-lanthanide coordination polymers. Chin. Sci. Bull. 54, 4296–4302 (2009). https://doi.org/10.1007/s11434-009-0597-1
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DOI: https://doi.org/10.1007/s11434-009-0597-1