Synthesis and Structures of Three Erbium(Ⅲ) Dicarboxylate Coordination Polymers
来源期刊：JOURNAL OF RARE EARTHS2002年第5期
论文作者：刘高峰 郑彦臻 陈小明
Key words：rare earths; erbium(Ⅲ) complexes; hydrothermal synthesis; coordination polymers; networks; topology;
Abstract: Three polymeric erbium(Ⅲ) complexes [Er(oba)(Hoba)(H2O)2]H2O (A),[Er2(oba)3(H2O)4] (B), [Er2(oba)3(2,2′-bpy)2] (C) (H2oba=4,4′-oxybis(benzoic acid), 2,2′-bpy = 2,2′-bipyridine) were hydrothermally synthesized by altering the metal/carboxylate ratios or in the presence of an additional chelate 2,2′-bpy ligand, and characterized by single-crystal X-ray diffraction. The results show that different metal/carboxylate ratios can influence the polymeric structures and the presence of 2,2′-bpy ligand alters the topology of the framework from two-dimensional to three-dimensional.
刘高峰1，郑彦臻1，陈小明1
(1.School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, China)
Abstract:Three polymeric erbium(Ⅲ) complexes [Er(oba)(Hoba)(H2O)2]H2O (A),[Er2(oba)3(H2O)4] (B), [Er2(oba)3(2,2′-bpy)2] (C) (H2oba=4,4′-oxybis(benzoic acid), 2,2′-bpy = 2,2′-bipyridine) were hydrothermally synthesized by altering the metal/carboxylate ratios or in the presence of an additional chelate 2,2′-bpy ligand, and characterized by single-crystal X-ray diffraction. The results show that different metal/carboxylate ratios can influence the polymeric structures and the presence of 2,2′-bpy ligand alters the topology of the framework from two-dimensional to three-dimensional.
Key words:rare earths; erbium(Ⅲ) complexes; hydrothermal synthesis; coordination polymers; networks; topology;
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