Article: Thioether side chains improve the stability, fluorescence, and metal uptake of a metal-organic framework
| Title | Thioether side chains improve the stability, fluorescence, and metal uptake of a metal-organic framework | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Authors | He, J2 Yee, KK2 Xu, Z2 Zeller, M3 Hunter, AD3 Chui, SSY1 Che, CM1 | ||||||||||||
| Keywords | fluorescent sensor heavy metal removal metal-organic frameworks Sulfurated frameworks thioether donors | ||||||||||||
| Issue Date | 2011 | ||||||||||||
| Publisher | American Chemical Society. The Journal's web site is located at http://pubs.acs.org/cm | ||||||||||||
| Citation | Chemistry Of Materials, 2011, v. 23 n. 11, p. 2940-2947 [How to Cite?] DOI: http://dx.doi.org/10.1021/cm200557e | ||||||||||||
| Abstract | This 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. | ||||||||||||
| ISSN | 0897-4756 2011 Impact Factor: 7.286 2011 SCImago Journal Rankings: 0.657 | ||||||||||||
| DOI | http://dx.doi.org/10.1021/cm200557e | ||||||||||||
| ISI Accession Number ID | WOS:000291294100033
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. | ||||||||||||
| References | References in Scopus |
| dc.contributor.author | He, J | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| dc.contributor.author | Yee, KK | ||||||||||||
| dc.contributor.author | Xu, Z | ||||||||||||
| dc.contributor.author | Zeller, M | ||||||||||||
| dc.contributor.author | Hunter, AD | ||||||||||||
| dc.contributor.author | Chui, SSY | ||||||||||||
| dc.contributor.author | Che, CM | ||||||||||||
| dc.date.accessioned | 2011-07-27T01:27:04Z | ||||||||||||
| dc.date.available | 2011-07-27T01:27:04Z | ||||||||||||
| dc.date.issued | 2011 | ||||||||||||
| dc.description.abstract | This 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.nature | Link_to_subscribed_fulltext | ||||||||||||
| dc.identifier.citation | Chemistry Of Materials, 2011, v. 23 n. 11, p. 2940-2947 [How to Cite?] DOI: http://dx.doi.org/10.1021/cm200557e | ||||||||||||
| dc.identifier.doi | http://dx.doi.org/10.1021/cm200557e | ||||||||||||
| dc.identifier.epage | 2947 | ||||||||||||
| dc.identifier.hkuros | 186966 | ||||||||||||
| dc.identifier.isi | WOS:000291294100033
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.issn | 0897-4756 2011 Impact Factor: 7.286 2011 SCImago Journal Rankings: 0.657 | ||||||||||||
| dc.identifier.issue | 11 | ||||||||||||
| dc.identifier.scopus | eid_2-s2.0-79958848335 | ||||||||||||
| dc.identifier.spage | 2940 | ||||||||||||
| dc.identifier.uri | http://hdl.handle.net/10722/135042 | ||||||||||||
| dc.identifier.volume | 23 | ||||||||||||
| dc.language | eng | ||||||||||||
| dc.publisher | American Chemical Society. The Journal's web site is located at http://pubs.acs.org/cm | ||||||||||||
| dc.publisher.place | United States | ||||||||||||
| dc.relation.ispartof | Chemistry of Materials | ||||||||||||
| dc.relation.references | References in Scopus | ||||||||||||
| dc.subject | fluorescent sensor | ||||||||||||
| dc.subject | heavy metal removal | ||||||||||||
| dc.subject | metal-organic frameworks | ||||||||||||
| dc.subject | Sulfurated frameworks | ||||||||||||
| dc.subject | thioether donors | ||||||||||||
| dc.title | Thioether side chains improve the stability, fluorescence, and metal uptake of a metal-organic framework | ||||||||||||
| dc.type | Article |
Author Affiliations
- The University of Hong Kong
- City University of Hong Kong
- Youngstown State University