Synthesis, crystal structures and characterization of a pair of TbIII-based enantiomers

• Published in: Journal of rare earths Vol. 29; no. 1; pp. 28 - 31
• Main Author: 方少明 牛晓霞 和来福 户敏 周立明 高丽君 李卻里
• Format: Journal Article
• Language: English
• Published: Henan Provincial Key Laboratory of Surface and Interface Science, School of Materials and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, China 2011
• Subjects: dBm; 对映体; 射线衍射分析; 手性配体; 晶体结构; 铽离子; enantiomers; chirality; terbium complex; rare earths
• ISSN: 1002-0721; 2509-4963
• DOI: 10.1016/S1002-0721(10)60406-1

A pair of novel Tb^III-based enantiomers, [Tb（dbm）·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 diffi＇action, 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 Tb^III ion was eight-coordinated by six O atoms of three dbm ligands and two N atoms fi-om 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 ℃.