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    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/28332

    Title: Rare earth metal squarates incorporating ethylene glycol ligand with a three-dimensional framework structure: RE(C4O4)(1.5)(C2H6O2) (RE = Y, La-Nd, Sm-Lu)
    Authors: Liu,YS;Tang,MF;Lii,KH
    Contributors: 中央大學
    Date: 2009
    Issue Date: 2010-06-29 19:46:17 (UTC+8)
    Publisher: 化學研究所
    Abstract: Fifteen isostructural rare earth metal squarates incorporating ethylene glycol ligand with the formula RE(C4O4)(1.5)(C2H6O2) (RE = Y, La-Nd, Sm-Lu) have been synthesized under hydrothermal conditions and structurally characterized by single-crystal and powder X-ray diffraction, C-13 CPMAS NMR, absorption spectroscopy, and magnetic susceptibility. A variable-temperature in situ powder X-ray diffraction study on the Ce compound was also performed to determine its thermal stability. Each RE3+ cation in the structure is bonded to six squarate anions and one neutral ethylene glycol chelate, and each C4O42- anion coordinates to four RE3+ cations such that a new 3-D framework is formed. They are the first examples of organic-inorganic hybrids which contain both squarate and ethylene glycol ligands.
    Appears in Collections:[化學研究所] 期刊論文

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