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Hydrothermal Syntheses, Structures, and Properties of Three 3‐D Lanthanide Coordination Polymers that Form 1‐D Channels
Author(s) -
Zheng XiangJun,
Wang ZheMing,
Gao Song,
Liao FuHui,
Yan ChunHua,
Jin LinPei
Publication year - 2004
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.200300876
Subject(s) - isostructural , chemistry , lanthanide , ligand (biochemistry) , molecule , crystallography , thermogravimetric analysis , hydrothermal synthesis , polymer , hydrogen bond , hydrothermal circulation , metal organic framework , coordination polymer , crystal structure , stereochemistry , ion , organic chemistry , chemical engineering , receptor , adsorption , biochemistry , engineering
Abstract We report the hydrothermal synthesis and crystal structure of isostructural lanthanide coordination polymers [Ln 2 (NDC) 3 (phen) 2 ]·H 2 NDC [Ln = Tb ( 1 ), Ho ( 2 ) and Yb ( 3 )] that feature 2,6‐naphthalenedicarboxylate (NDC) and 1,10‐phenanthroline (phen) ligands. The NDC ligands bridge the lanthanide ions in two different modes to form a 3‐D porous framework that accommodates large, neutral 2,6‐naphthalenedicarboxylic acid molecules as guests in the channels, stabilized through O−H ··· O hydrogen bonds to the NDC ligand. The effective dimension of the channel is ca. 6.0 × 8.2 Å. Thermogravimetric analysis shows that complex 2 remains stable up to 330 °C, which we confirmed also by powder X‐ray diffraction analyses. The framework collapsed upon the loss of the coordinating phen molecules. The Tb complex shows strong evidence of ferromagnetic coupling interactions. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004)