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- Title
Lanthanide(III) complex metal-organic frameworks with a phenanthroline-carboxylate derivate and 2,5-thiophenedicarboxylate coligand: hydrothermal synthesis, crystal structure, and high thermostability.
- Authors
Xu, Zhao; An, Fengqin; Ma, Xiaohui; Zhou, Huiliang; Song, Weiming; Liu, Xiangyu
- Abstract
Based on 2-(4-carboxyphenyl)imidazo[4,5-<italic>f</italic>]-1,10-phenanthroline (HNCP) and 2,5-thiophenedicarboxylate (TDC2−) ligands, three new lanthanide-containing (Sm, Nd, and Pr) compounds, [Sm(NCP)(TDC)]<italic>n</italic> (<bold>1</bold>), [Nd(NCP)(TDC)]<italic>n</italic>·2<italic>n</italic>(H2O)0.5 (<bold>2</bold>), and [Pr(NCP)(TDC)]<italic>n</italic>·<italic>n</italic>(H2O)0.5 (<bold>3</bold>), have been synthesized using the hydrothermal method and structurally characterized using single-crystal X-ray diffraction. Structural analyses have revealed that compounds <bold>1–3</bold> 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.
- Subjects
IMIDAZOLES; STRUCTURAL analysis (Science); RARE earth metals; X-ray diffraction; LIGANDS (Chemistry)
- Publication
Zeitschrift für Naturforschung B: A Journal of Chemical Sciences, 2018, Vol 73, Issue 5, p311
- ISSN
0932-0776
- Publication type
Article
- DOI
10.1515/znb-2018-0016