Two- and three-dimensional Zn(II) coordination polymers constructed from mixed ligand systems: interpenetration, structural transformation and sensing behavior
- Authors
- Park, Min Kyung; Lim, Kwang Soo; Park, Ji Hey; Song, Jeong Hwa; Kang, Dong Won; Lee, Woo Ram; Hong, Chang Seop
- Issue Date
- 2016
- Publisher
- ROYAL SOC CHEMISTRY
- Citation
- CRYSTENGCOMM, v.18, no.23, pp.4349 - 4358
- Indexed
- SCIE
SCOPUS
- Journal Title
- CRYSTENGCOMM
- Volume
- 18
- Number
- 23
- Start Page
- 4349
- End Page
- 4358
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/90189
- DOI
- 10.1039/c6ce00155f
- ISSN
- 1466-8033
- Abstract
- Four Zn(II) coordination compounds (1-4) were prepared solvothermally by reacting Zn2+ ions and organic linkers of dim and carboxylic acid-based ligands. Two-dimensional structures (1 and 2), which are extended to three-dimensional frameworks with the assistance of multiple hydrogen bonding interactions, are formed by employing isophthalate-based organic ligands. 4-fold (3) and 3-fold (4) interpenetrations occur when organic linkers that have carboxylic acid groups located oppositely are used. Interestingly, the interpenetrating nets undergo phase transformation via two pathways involving solvent exchange/resolvation and solvent exchange/activation/resolvation, which reveals that the structures are flexible. Photoluminescence properties show the selective fluorescence quenching of 3 and 4 in nitrobenzene (NB) among the tested solvents. Such quenching is substantial even at low NB concentrations, which is associated with the existence of Lewis basic sites in the interpenetrating framework.
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