Synthesis,crystal structure and characterization of one-dimension complex constructed by terbium（Ⅲ） and 2-iodobenzoate
来源期刊：Journal of Rare Earths2009年第3期
论文作者：许丽娟 李艳秋 李夏
文章页码：372 - 375
摘 要：The complex of [Tb（2-IBA） 3（H2O） 2]n（2-IBA=2-iodobenzoate） was prepared by solvent method from TbCl3·6H2O and 2-iodo-benzoic acid. The crystal structure was determined with X-ray single-crystal diffraction. The X-ray diffraction analysis indicated that the title complex crystallized in triclinic crystal system and Pī space group. The Tb3+ ion was coordinated by six oxygen atoms from five 2-IBA ligands and two oxygen atoms from two water molecules,giving a distorted square-antiprism polyhedral geometry. The carboxyl groups were bonded to the Tb3+ ions with bidentate-bridging and bidentate-chelating coordination modes. The adjacent Tb3+ ions were linked by two bidentate-bridging 2-IBA ligands,forming 1-D chain structure. The fluorescence spectrum of the complex showed four main peaks at 489,543,587,and 618 nm,corresponding to 5D4→7FJ（J=6-3） transition emissions of the Tb3+ ion,respectively.
许丽娟，李艳秋，李夏
摘 要：The complex of [Tb（2-IBA） 3（H2O） 2]n（2-IBA=2-iodobenzoate） was prepared by solvent method from TbCl3·6H2O and 2-iodo-benzoic acid. The crystal structure was determined with X-ray single-crystal diffraction. The X-ray diffraction analysis indicated that the title complex crystallized in triclinic crystal system and Pī space group. The Tb3+ ion was coordinated by six oxygen atoms from five 2-IBA ligands and two oxygen atoms from two water molecules,giving a distorted square-antiprism polyhedral geometry. The carboxyl groups were bonded to the Tb3+ ions with bidentate-bridging and bidentate-chelating coordination modes. The adjacent Tb3+ ions were linked by two bidentate-bridging 2-IBA ligands,forming 1-D chain structure. The fluorescence spectrum of the complex showed four main peaks at 489,543,587,and 618 nm,corresponding to 5D4→7FJ（J=6-3） transition emissions of the Tb3+ ion,respectively.
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