Please use this identifier to cite or link to this item: https://doi.org/10.1021/acs.inorgchem.8b02230
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dc.titleLuminescent Metal-Organic Frameworks for the Detection and Discrimination of o-Xylene from Xylene Isomers
dc.contributor.authorZhang, Jian
dc.contributor.authorWang, Jian
dc.contributor.authorLong, Sichang
dc.contributor.authorPeh, Shing Bo
dc.contributor.authorDong, Jinqiao
dc.contributor.authorWang, Yuxiang
dc.contributor.authorKarmakar, Avishek
dc.contributor.authorYuan, Yi Di
dc.contributor.authorCheng, Youdong
dc.contributor.authorZhao, Dan
dc.date.accessioned2020-06-12T11:28:20Z
dc.date.available2020-06-12T11:28:20Z
dc.date.issued2018-11-05
dc.identifier.citationZhang, Jian, Wang, Jian, Long, Sichang, Peh, Shing Bo, Dong, Jinqiao, Wang, Yuxiang, Karmakar, Avishek, Yuan, Yi Di, Cheng, Youdong, Zhao, Dan (2018-11-05). Luminescent Metal-Organic Frameworks for the Detection and Discrimination of o-Xylene from Xylene Isomers. INORGANIC CHEMISTRY 57 (21) : 13631-13639. ScholarBank@NUS Repository. https://doi.org/10.1021/acs.inorgchem.8b02230
dc.identifier.issn0020-1669
dc.identifier.issn1520-510X
dc.identifier.urihttps://scholarbank.nus.edu.sg/handle/10635/169723
dc.description.abstractCopyright © 2018 American Chemical Society. Differentiation of xylene isomers remains as one of the most important challenges in the chemical industry, mainly due to the similar molecular sizes and boiling points of the three xylene isomers. Fluorescence-based chemical sensors have attracted wide attention due to their high sensitivity and versatile applications. Here, we report a novel fluorescent metal-organic framework named NUS-40, which is able to selectively detect and discriminate o-xylene from other xylene isomers. Suspension of NUS-40 in o-xylene produces a distinct red shift in the fluorescence emission compared to that in either m-xylene or p-xylene. Moreover, the extent of peak shift is dependent on the concentration of o-xylene in xylene isomer mixtures, and the observed linear correlation between fluorescence intensity and o-xylene concentration is beneficial for quantitative detection. The possible mechanism of such responsive fluorescence behavior was investigated by Fourier transform infrared spectroscopy, proton nuclear magnetic resonance, and vapor sorption experiments. In addition, facile metalation of the porphyrin centers with metal ions provides an additional route to fine-tune the sensing properties.
dc.language.isoen
dc.publisherAMER CHEMICAL SOC
dc.sourceElements
dc.subjectScience & Technology
dc.subjectPhysical Sciences
dc.subjectChemistry, Inorganic & Nuclear
dc.subjectChemistry
dc.subjectCHEMICAL SENSORS
dc.subjectPHASE ADSORPTION
dc.subjectAQUEOUS-PHASE
dc.subjectSEPARATION
dc.subjectFLUORESCENCE
dc.subjectVAPOR
dc.subjectMOF
dc.subjectMETALLOPORPHYRINS
dc.subjectSPECTROSCOPY
dc.subjectRECOGNITION
dc.typeArticle
dc.date.updated2020-06-12T03:29:00Z
dc.contributor.departmentDEPT OF CHEMICAL & BIOMOLECULAR ENGG
dc.contributor.departmentDEPT OF CHEMISTRY
dc.description.doi10.1021/acs.inorgchem.8b02230
dc.description.sourcetitleINORGANIC CHEMISTRY
dc.description.volume57
dc.description.issue21
dc.description.page13631-13639
dc.published.statePublished
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