Pore size dynamics in interpenetrated metal organic frameworks for selective sensing of aromatic compounds
The two-fold interpenetrated metal-organic framework, [Zn2(bdc)2(dpNDI)]n (bdc = 1,4-benzenedicarboxylate, dpNDI = N'N'-di(4-pyridyl)-1,4,5,8-naphthalenediimide) can undergo structural re-arrangement upon adsorption of chemical species changing its pore structure. For a competitive binding...
| Main Authors: | , , , , |
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| Format: | Journal Article |
| Published: |
Elsevier
2014
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| Online Access: | http://hdl.handle.net/20.500.11937/22015 |
| _version_ | 1848750752323862528 |
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| author | Myers, M. Podolska, Anna Heath, C. Baker, M. Pejcic, B. |
| author_facet | Myers, M. Podolska, Anna Heath, C. Baker, M. Pejcic, B. |
| author_sort | Myers, M. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | The two-fold interpenetrated metal-organic framework, [Zn2(bdc)2(dpNDI)]n (bdc = 1,4-benzenedicarboxylate, dpNDI = N'N'-di(4-pyridyl)-1,4,5,8-naphthalenediimide) can undergo structural re-arrangement upon adsorption of chemical species changing its pore structure. For a competitive binding process with multiple analytes of different sizes and geometries, the interpenetrated framework will adopt a conformation to maximize the overall binding interactions. In this study, we show for binary mixtures that there is a high selectivity for the larger methylated aromatic compounds, toluene and p-xylene, over the small non-methylated benzene. The dpNDI moiety within [Zn2(bdc)2(dpNDI)]n forms an exciplex with these aromatic compounds. The emission wavelength is dependent on the strength of the host-guest CT interaction allowing these compounds to be distinguished. We show that the sorption selectivity characteristics can have a significant impact on the fluorescence sensor response of [Zn2(bdc)2(dpNDI)]n towards environmentally important hydrocarbons based contaminants (i.e., BTEX, PAH). |
| first_indexed | 2025-11-14T07:41:49Z |
| format | Journal Article |
| id | curtin-20.500.11937-22015 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T07:41:49Z |
| publishDate | 2014 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-220152017-09-13T13:52:24Z Pore size dynamics in interpenetrated metal organic frameworks for selective sensing of aromatic compounds Myers, M. Podolska, Anna Heath, C. Baker, M. Pejcic, B. The two-fold interpenetrated metal-organic framework, [Zn2(bdc)2(dpNDI)]n (bdc = 1,4-benzenedicarboxylate, dpNDI = N'N'-di(4-pyridyl)-1,4,5,8-naphthalenediimide) can undergo structural re-arrangement upon adsorption of chemical species changing its pore structure. For a competitive binding process with multiple analytes of different sizes and geometries, the interpenetrated framework will adopt a conformation to maximize the overall binding interactions. In this study, we show for binary mixtures that there is a high selectivity for the larger methylated aromatic compounds, toluene and p-xylene, over the small non-methylated benzene. The dpNDI moiety within [Zn2(bdc)2(dpNDI)]n forms an exciplex with these aromatic compounds. The emission wavelength is dependent on the strength of the host-guest CT interaction allowing these compounds to be distinguished. We show that the sorption selectivity characteristics can have a significant impact on the fluorescence sensor response of [Zn2(bdc)2(dpNDI)]n towards environmentally important hydrocarbons based contaminants (i.e., BTEX, PAH). 2014 Journal Article http://hdl.handle.net/20.500.11937/22015 10.1016/j.aca.2014.02.004 Elsevier restricted |
| spellingShingle | Myers, M. Podolska, Anna Heath, C. Baker, M. Pejcic, B. Pore size dynamics in interpenetrated metal organic frameworks for selective sensing of aromatic compounds |
| title | Pore size dynamics in interpenetrated metal organic frameworks for selective sensing of aromatic compounds |
| title_full | Pore size dynamics in interpenetrated metal organic frameworks for selective sensing of aromatic compounds |
| title_fullStr | Pore size dynamics in interpenetrated metal organic frameworks for selective sensing of aromatic compounds |
| title_full_unstemmed | Pore size dynamics in interpenetrated metal organic frameworks for selective sensing of aromatic compounds |
| title_short | Pore size dynamics in interpenetrated metal organic frameworks for selective sensing of aromatic compounds |
| title_sort | pore size dynamics in interpenetrated metal organic frameworks for selective sensing of aromatic compounds |
| url | http://hdl.handle.net/20.500.11937/22015 |