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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 33, Number 6
BKCSDE 33(6)
June 20, 2012 
 
Title
 Novel Lanthanide Coordination Polymers Prepared by Microwave Heating: [Ln(L)3(H2O)2](H2O)3 (Ln = Eu, Tb, Gd; L = trans-(3-py)–CH=CH–COO)
Author
 Sun Hwa Han, Zhen Nu Zheng, Sung Il Cho, Soon W. Lee*
Keywords
 Lanthanide coordination polymers, Crystal structure, Microwave heating, Luminescence
Abstract
 Three isostructural lanthanide coordination polymers, [Ln(L)3(H2O)2](H2O)3 {Ln = Eu (1), Tb (2), Gd (3); L = trans-3-(3-pyridyl)acrylate, (3-py)–CH=CH–COO}, were prepared from HL, lanthanide nitrate, and NaOH in H2O by microwave heating. In all coordination polymers, the metal is bonded to eight oxygen atoms, and all pyridyl nitrogen atoms do not coordinate to the metals. All polymers have a 1-D loop-connected chain structure. The hydrogen atoms in the aqua ligands and lattice water molecules all participate in the hydrogen bonds of the O–H···O or O–H···N type. The hydrogen bonds connect the 1-D chains to create a 2-D network. Polymer 1 exhibited red luminescence in the solid state at room temperature.
Page
 2017 - 2022
Full Text
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