title: Sugar-metal ion interactions: the coordination behaviors of lanthanum with erythritol.
abstract: Three novel lanthanum chloride-erythritol complexes (LaCl(3)·C(4)H(10)O(4)·5H(2)O (LaE(I)), LaCl(3)·C(4)H(10)O(4)·3H(2)O (LaE(II)), and LaCl(3)·1.5C(4)H(10)O(4) (LaE(III)) were synthesized and characterized by single crystal X-ray diffraction, FTIR, far-IR, THz, and Raman spectroscopy. The coordination number of La(3+) is nine. LaE(I) and LaE(II) have similar coordination spheres, but their hydrogen bond networks are different. Erythritol exhibits two coordination modes: two bidentate ligands and tridentate ligands in LaE(III). Chloride ions and water coordinate with La(3+) or participate in the hydrogen-bond networks in the three complexes. Crystal structures, FTIR, FIR, THz, and Raman spectra provide detailed information on the structures and coordination of hydroxyl groups to metal ions in the metal-carbohydrate complexes.
authors.affiliation: State Key Laboratory of Nuclear Physics and Technology, Institute of Heavy Ion Physics, School of Physics, Peking University, Beijing 100871, China.
authors.forename: Junhui
authors.initials: J
authors.lastname: Xue
authors.forename: Xiaohui
authors.initials: X
authors.lastname: Hua
authors.forename: Weihong
authors.initials: W
authors.lastname: Li
authors.forename: Limin
authors.initials: L
authors.lastname: Yang
authors.forename: Yizhuang
authors.initials: Y
authors.lastname: Xu
authors.forename: Guozhong
authors.initials: G
authors.lastname: Zhao
authors.forename: Gaohui
authors.initials: G
authors.lastname: Zhang
authors.forename: Chunping
authors.initials: C
authors.lastname: Li
authors.forename: Kexin
authors.initials: K
authors.lastname: Liu
authors.forename: Jia'er
authors.initials: J
authors.lastname: Chen
authors.forename: Jinguang
authors.initials: J
authors.lastname: Wu
mesh_terms: D018360:Crystallography, X-Ray; D004896:Erythritol / Q000737:chemistry*; D007477:Ions / Q000737:chemistry; D007811:Lanthanum / Q000737:chemistry*; D008958:Models, Molecular; D009942:Organometallic Compounds / Q000138:chemical synthesis* / Q000737:chemistry; D017550:Spectroscopy, Fourier Transform Infrared; D013059:Spectrum Analysis, Raman
chemical_list: D007477:Ions; D009942:Organometallic Compounds; C028521:lanthanum chloride; D007811:Lanthanum; D004896:Erythritol