Crystal structures and gas adsorption behavior of new lanthanide-benzene-1,4-dicarboxylate frameworks

Panyarat, Kitt; Surinwong, Sireenart; Prior, Timothy J.; Konno, Takumi; Rujiwatra, Apinpus

Abstract

Six new lanthanide metal organic complexes, i.e. [La2(NO2-BDC)3(H2O)4] (1) [Ln(L)0.5(NO2-BDC) (H2O)]·3H2O (Ln = Eu (2), Tb (3), Dy (4) and Ho (5); L = BDC2− or BDC2−/NO2-BDC2-) and [Tm(NO2-BDC)1.5(H2O)]·H2O (6), have been synthesized using mixed ligands of benzene-1,4-dicarboxylic acid (H2BDC) and the in situ generated 2-nitro-benzene-1,4-dicarboxylic acid (NO2-BDC2-). Single crystal structures and topologies of the complexes are presented based on the single crystal X-ray diffraction and spectroscopic data. Whilst the structures of 1 and 6 contain negligible voids, the frameworks of 2–5 are microporous in nature and stable upon the removal of all the water molecules from the structures and thermal treatment to over 400 °C. Based on the study of 2, significant adsorption capacities for carbon dioxide (95 cm3·g−1 or 4.2 mmol·g−1) and hydrogen (79 cm3·g−1 or 4 mmol·g−1), as well as the remarkable stability of the framework upon the sorption/desorption experiments are revealed.

Citation

Panyarat, K., Surinwong, S., Prior, T. J., Konno, T., & Rujiwatra, A. (2017). Crystal structures and gas adsorption behavior of new lanthanide-benzene-1,4-dicarboxylate frameworks. Microporous and Mesoporous Materials, 251, 155-164. https://doi.org/10.1016/j.micromeso.2017.06.003

• Acceptance Date: Jun 1, 2017
• Online Publication Date: Jun 3, 2017
• Publication Date: 2017-10
• Deposit Date: Jun 14, 2017
• Publicly Available Date: Jun 6, 2018
• Journal: Microporous and mesoporous materials
• Print ISSN: 1387-1811
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 251
• Pages: 155-164
• DOI: https://doi.org/10.1016/j.micromeso.2017.06.003
• Keywords: Metal organic framework; Lanthanide; Benzenedicarboxylate; Gas adsorption; Crystal structure
• Public URL: https://hull-repository.worktribe.com/output/452465
• Publisher URL: http://www.sciencedirect.com/science/article/pii/S1387181117303992
• Additional Information: This is the accepted manuscript of an article published in Microporous and mesoporous materials, 2017. The version of record is available at the DOI link in this record.
• Contract Date: Jun 14, 2017