Synthesis, crystal structures and characterization of a pair of TbIII-based enantiomers |
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| Authors: | Shaoming FANG Xiaoxia NIU Laifu HE Min HU Liming ZHOU Lijun GAO Xili LI |
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| Affiliation: | Henan Provincial Key Laboratory of Surface and Interface Sc＇ience School of Materials and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, China |
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| Abstract: | A pair of novel TbIII-based enantiomers, Tb(dbm)3·LSS] (1) and Tb(dbm)3·LRR] (2) (where LSS=(+)-4,5-pinene bipyridine, LRR= (-)-4,5-pinene bipyridine, dbm=dibenzoylmethanate), were synthesized and characterized based on single crystal X-ray diffraction, elemental analysis, FT-IR, TG and CD spectra. X-ray diffraction analysis showed that both the complexes crystallized in monoclinic crystal system with P21 chiral space group. The TbIII ion was eight-coordinated by six O atoms of three dbm ligands and two N atoms from one chiral ligand LSS or LRR. The CD spectra revealed that complexes 1 and 2 were enantiomers. Thermogravimetric analysis results indicated that 1 and 2 were thermally stable up to 246 °C. |
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| Keywords: | enantiomers chirality rare earths terbium complex |
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