Interactions between Metal Ions and Carbohydrates. Spectroscopic Characterization and the Topology Coordination Behavior of Erythritol with Trivalent Lanthanide Ions

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• 作者：Limin Yang ; Xiaohui Hua ; Junhui Xue ; Qinghua Pan ; Lei Yu ; Weihong Li ; Yizhuang Xu ; Guozhong Zhao ; Liming Liu ; Kexin Liu ; Jia鈥檈r Chen ; Jinguang Wu
• 刊名：Inorganic Chemistry
• 出版年：2012
• 出版时间：January 2, 2012
• 年：2012
• 卷：51
• 期：1
• 页码：499-510
• 全文大小：552K
• 年卷期：v.51,no.1(January 2, 2012)
• ISSN：1520-510X

文摘

The coordination of carbohydrate to metal ions is important because it may be involved in many biochemical processes. The synthesis and characterization of several novel lanthanide-erythritol complexes (TbCl₃路1.5C₄H₁₀O₄路H₂O (TbE(I)), Pr(NO₃)₃路C₄H₁₀O₄路2H₂O (PrEN), Ce(NO₃)₃路C₄H₁₀O₄路2H₂O (CeEN), Y(NO₃)₃路C₄H₁₀O₄路C₂H₅OH (YEN), Gd(NO₃)₃路C₄H₁₀O₄路C₂H₅OH (GdEN)) and Tb(NO₃)₃路C₄H₁₀O₄路C₂H₅OH (TbEN) are reported. The structures of these complexes in the solid state have been determined by X-ray diffraction. Erythritol is used as two bidentate ligands or as three hydroxyl group donor in these complexes. FTIR spectra indicate that two kinds of structures, with water and without water involved in the coordination sphere, were observed for lanthanide nitrate-erythritol complexes. FIR and THz spectra show the formation of metal ion-erythritol complexes. Luminescence spectra of Tb-erythritol complexes have the characteristics of the Tb ion.