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Article: Thioether side chains improve the stability, fluorescence, and metal uptake of a metal-organic framework
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TitleThioether side chains improve the stability, fluorescence, and metal uptake of a metal-organic framework
 
AuthorsHe, J2
Yee, KK2
Xu, Z2
Zeller, M3
Hunter, AD3
Chui, SSY1
Che, CM1
 
Keywordsfluorescent sensor
heavy metal removal
metal-organic frameworks
Sulfurated frameworks
thioether donors
 
Issue Date2011
 
PublisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/cm
 
CitationChemistry Of Materials, 2011, v. 23 n. 11, p. 2940-2947 [How to Cite?]
DOI: http://dx.doi.org/10.1021/cm200557e
 
AbstractThis work builds on the recently developed hard-soft approach, as is embodied in the carboxyl-thioether combination, for functionalizing metal-organic frameworks (MOFs), and it aims to further demonstrate its efficacy and generality in connection with the prototypic MOF-5 system [i.e., Zn 4O(bdc) 3, where bdc is 1,4-benzene dicarboxylate]. Specifically, the thioether side chain CH 3SCH 2CH 2S- (methylthioethylenethio, or MSES) is placed at the 2,5- positions of bdc, and the resultant molecule (L) was crystallized with Zn(II) ions into a porous, cubic network [Zn 4O(L) 3] topologically equivalent to MOF-5. Compared with the previously used methylthio (CH 3S-) group, the MSES side chain is more flexible, has more S atoms as the binding sites (per chain), and extends further into the channel region; therefore, this side chain is predisposed for more-efficient binding to soft metal species when installed in a porous MOF matrix. Here, we report the significantly improved properties, with regard to stability to moisture, fluorescence intensity, and capability of metal uptake. For example, activated solid samples of 1 feature long-term stability (more than 3 weeks) in air, have a notable sensing response to nitrobenzene (in the form of fluorescence quenching), and are capable of taking up HgCl 2 from an ethanol solution at a concentration as low as 84 mg/L. © 2011 American Chemical Society.
 
ISSN0897-4756
2012 Impact Factor: 8.238
2012 SCImago Journal Rankings: 3.600
 
DOIhttp://dx.doi.org/10.1021/cm200557e
 
ISI Accession Number IDWOS:000291294100033
Funding AgencyGrant Number
City University of Hong Kong7002321
Research Grants Council of HKSAR9041322 (CityU 103009)
NSF0087210
Ohio Board of RegentsCAP-491
YSU
Funding Information:

This work is supported by City University of Hong Kong (Project No. 7002321) and the Research Grants Council of HKSAR [Project 9041322 (CityU 103009)]. The single crystal diffractometer was funded by NSF (Grant No. 0087210), the Ohio Board of Regents (Grant No. CAP-491), and by YSU.

 
ReferencesReferences in Scopus
 
DC FieldValue
dc.contributor.authorHe, J
 
dc.contributor.authorYee, KK
 
dc.contributor.authorXu, Z
 
dc.contributor.authorZeller, M
 
dc.contributor.authorHunter, AD
 
dc.contributor.authorChui, SSY
 
dc.contributor.authorChe, CM
 
dc.date.accessioned2011-07-27T01:27:04Z
 
dc.date.available2011-07-27T01:27:04Z
 
dc.date.issued2011
 
dc.description.abstractThis work builds on the recently developed hard-soft approach, as is embodied in the carboxyl-thioether combination, for functionalizing metal-organic frameworks (MOFs), and it aims to further demonstrate its efficacy and generality in connection with the prototypic MOF-5 system [i.e., Zn 4O(bdc) 3, where bdc is 1,4-benzene dicarboxylate]. Specifically, the thioether side chain CH 3SCH 2CH 2S- (methylthioethylenethio, or MSES) is placed at the 2,5- positions of bdc, and the resultant molecule (L) was crystallized with Zn(II) ions into a porous, cubic network [Zn 4O(L) 3] topologically equivalent to MOF-5. Compared with the previously used methylthio (CH 3S-) group, the MSES side chain is more flexible, has more S atoms as the binding sites (per chain), and extends further into the channel region; therefore, this side chain is predisposed for more-efficient binding to soft metal species when installed in a porous MOF matrix. Here, we report the significantly improved properties, with regard to stability to moisture, fluorescence intensity, and capability of metal uptake. For example, activated solid samples of 1 feature long-term stability (more than 3 weeks) in air, have a notable sensing response to nitrobenzene (in the form of fluorescence quenching), and are capable of taking up HgCl 2 from an ethanol solution at a concentration as low as 84 mg/L. © 2011 American Chemical Society.
 
dc.description.natureLink_to_subscribed_fulltext
 
dc.identifier.citationChemistry Of Materials, 2011, v. 23 n. 11, p. 2940-2947 [How to Cite?]
DOI: http://dx.doi.org/10.1021/cm200557e
 
dc.identifier.doihttp://dx.doi.org/10.1021/cm200557e
 
dc.identifier.epage2947
 
dc.identifier.hkuros186966
 
dc.identifier.isiWOS:000291294100033
Funding AgencyGrant Number
City University of Hong Kong7002321
Research Grants Council of HKSAR9041322 (CityU 103009)
NSF0087210
Ohio Board of RegentsCAP-491
YSU
Funding Information:

This work is supported by City University of Hong Kong (Project No. 7002321) and the Research Grants Council of HKSAR [Project 9041322 (CityU 103009)]. The single crystal diffractometer was funded by NSF (Grant No. 0087210), the Ohio Board of Regents (Grant No. CAP-491), and by YSU.

 
dc.identifier.issn0897-4756
2012 Impact Factor: 8.238
2012 SCImago Journal Rankings: 3.600
 
dc.identifier.issue11
 
dc.identifier.scopuseid_2-s2.0-79958848335
 
dc.identifier.spage2940
 
dc.identifier.urihttp://hdl.handle.net/10722/135042
 
dc.identifier.volume23
 
dc.languageeng
 
dc.publisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/cm
 
dc.publisher.placeUnited States
 
dc.relation.ispartofChemistry of Materials
 
dc.relation.referencesReferences in Scopus
 
dc.subjectfluorescent sensor
 
dc.subjectheavy metal removal
 
dc.subjectmetal-organic frameworks
 
dc.subjectSulfurated frameworks
 
dc.subjectthioether donors
 
dc.titleThioether side chains improve the stability, fluorescence, and metal uptake of a metal-organic framework
 
dc.typeArticle
 
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<contributor.author>Hunter, AD</contributor.author>
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Author Affiliations
  1. The University of Hong Kong
  2. City University of Hong Kong
  3. Youngstown State University