Lanthanide(III) complex metal-organic frameworks with a phenanthroline-carboxylate derivate and 2,5-thiophenedicarboxylate coligand: hydrothermal synthesis, crystal structure, and high thermostability
Author:
Xu Zhao1, An Fengqin1, Ma Xiaohui1, Zhou Huiliang2, Song Weiming1, Liu Xiangyu2
Affiliation:
1. School of Chemistry and Chemical Engineering , Ningxia University , Yinchuan 750021 , P. R. China 2. School of Chemistry and Chemical Engineering , Ningxia University , Yinchuan 750021 , P. R. China , Tel.: +86-951-2062004; Fax: +86-951-2062860
Abstract
Abstract
Based on 2-(4-carboxyphenyl)imidazo[4,5-f]-1,10-phenanthroline (HNCP) and 2,5-thiophenedicarboxylate (TDC2−) ligands, three new lanthanide-containing (Sm, Nd, and Pr) compounds, [Sm(NCP)(TDC)]
n
(1), [Nd(NCP)(TDC)]
n
·2n(H2O)0.5 (2), and [Pr(NCP)(TDC)]
n
·n(H2O)0.5 (3), have been synthesized using the hydrothermal method and structurally characterized using single-crystal X-ray diffraction. Structural analyses have revealed that compounds 1–3 are 3D isostructural metal-organic frameworks in which the [Ln2(COO)4] dimers can be regarded as 6-connecting nodes, and the TDC2− and NCP− ligands are simplified as connectors to achieve the double interspersed 3D networks with the point symbol {412·63}. Thermogravimetric analysis has illustrated that the rigid architecture contributes to superior thermal stability with a thermal decomposition temperature of more than 400°C for the resulting metal-organic frameworks.
Publisher
Walter de Gruyter GmbH
Subject
General Chemistry
Reference24 articles.
1. A. C. Sudik, A. P. Côté, A. G. Wong-Foy, M. O’Keeffe, O. M. Yaghi, Angew. Chem. Int. Ed.2006, 45, 2528. 2. A. Kondo, H. Noguchi, H. Kajiro, L. Carlucci, P. Mercandelli, D. M. Proserpio, H. Tanaka, K. Kaneko, H. Kanoh, J. Phys. Chem. B.2006, 110, 25565. 3. M. Hong, Cryst. Growth Des.2007, 7, 10. 4. C. Janiak, Dalton Trans.2003, 14, 2781. 5. C. N. R. Rao, A. K. Cheetham, A. Thirumurugan, J. Phys. Condens. Matter.2008, 20, 083202.
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