Post-synthetic Modification of a Two-Dimensional Metal-Organic Framework via Photodimerization Enables Highly Selective Luminescent Sensing of Aluminum(III)

Wu-Xiang Li; Jia-Hui Gu; Hong-Xi Li; Ming Dai; David James Young; Hai-Yan Li; Jian-Ping Lang

doi:10.1021/acs.inorgchem.8b02049

Post-synthetic Modification of a Two-Dimensional Metal-Organic Framework via Photodimerization Enables Highly Selective Luminescent Sensing of Aluminum(III)

Inorg Chem. 2018 Nov 5;57(21):13453-13460. doi: 10.1021/acs.inorgchem.8b02049. Epub 2018 Oct 11.

Authors

Wu-Xiang Li^{1

2}, Jia-Hui Gu¹, Hong-Xi Li¹, Ming Dai³, David James Young⁴, Hai-Yan Li¹, Jian-Ping Lang^{1

2}

Affiliations

¹ State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science , Soochow University , Suzhou 215123 , Jiangsu , P. R. China.
² State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry , Chinese Academy of Sciences , Shanghai 200032 , P. R. China.
³ Suzhou Clean Environment Institute , Jiangsu Sujing Group Co., Ltd. , Suzhou 215122 , Jiangsu , China.
⁴ Faculty of Science, Health, Education and Engineering , University of the Sunshine Coast , Maroochydore DC , Queensland 4558 Australia.

PMID: 30351074
DOI: 10.1021/acs.inorgchem.8b02049

Abstract

Reaction of Cd(NO₃)₂·4H₂O with 5-fluoro-1,3-bis[2-(4-pyridyl)ethenyl]benzene (5-F-1,3-bpeb) and 1,3-benzenedicarboxylic acid (1,3-H₂BDC) under the solvothermal conditions gave rise to a two-dimensional metal-organic framework (MOF) [{Cd₂(5-F-1,3-bpeb)₂(1,3-BDC)₂}·0.5DMF·2H₂O] _n (1). Compound 1 was postmodified by a photodimerization reaction between 5-F-1,3-bpeb ligands to yield [{Cd₂( syn-dftpmcp)(1,3-BDC)₂}·0.5DMF·H₂O] _n ( syn-dftpmcp = syn-3,4,12,13-tetrakis(4-pyridyl)-8,17-bisfluoro-1,2,9,10-diethano[2.2]metacyclophane) (2). Compounds 1 and 2 have 2D networks built from linking one-dimensional [Cd₂(1,3-BDC)₂] _n chains via 5-F-1,3-bpeb or syn-dftpmcp bridges. After such a post-synthetic modification, compound 2, relative to 1, can probe Al³⁺ by using a luminescent quenching approach with much higher selectivity and sensitivity.