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Controlled dye release from a metal–organic framework: a new luminescent sensor for water

By introducing the dye Rhodamine 6G (R6G) into a metal–organic framework (MOF), Mn-sdc-2 (H(2)sdc = 4,4′-stilbenedicarboxylic acid), with a pore size of 20 × 9.8 Å(2), the composite R6G@Mn-sdc-2 was obtained. Subsequently, the MOF Mn-sdc-1 with a smaller pore size of 7.5 × 7.5 Å(2) can be formed thr...

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Autores principales: Xiao, Fan, Zhang, Jun, Gan, Jiulin, Tang, Ying, Cui, Yuanjing, Yu, Yang, Qian, Guodong
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9048977/
https://www.ncbi.nlm.nih.gov/pubmed/35496118
http://dx.doi.org/10.1039/c9ra08753b
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author Xiao, Fan
Zhang, Jun
Gan, Jiulin
Tang, Ying
Cui, Yuanjing
Yu, Yang
Qian, Guodong
author_facet Xiao, Fan
Zhang, Jun
Gan, Jiulin
Tang, Ying
Cui, Yuanjing
Yu, Yang
Qian, Guodong
author_sort Xiao, Fan
collection PubMed
description By introducing the dye Rhodamine 6G (R6G) into a metal–organic framework (MOF), Mn-sdc-2 (H(2)sdc = 4,4′-stilbenedicarboxylic acid), with a pore size of 20 × 9.8 Å(2), the composite R6G@Mn-sdc-2 was obtained. Subsequently, the MOF Mn-sdc-1 with a smaller pore size of 7.5 × 7.5 Å(2) can be formed through a single-crystal to single-crystal transformation from Mn-sdc-2, thus tightly locking the dye R6G within the pores. Compared with R6G@Mn-sdc-2, R6G@Mn-sdc-1 exhibits a stronger fluorescence emission of R6G. Because the MOF Mn-sdc-1 can reversibly transform back to Mn-sdc-2 in the presence of trace water, the dye R6G can be released. This enables R6G@Mn-sdc-1 to be used as a new luminescent sensor for trace water in organic solvents by monitoring the fluorescence intensity of released R6G. The limit of detection can reach 0.035% in ethanol (v : v), which is among the most sensitive fluorescent water probes.
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spelling pubmed-90489772022-04-28 Controlled dye release from a metal–organic framework: a new luminescent sensor for water Xiao, Fan Zhang, Jun Gan, Jiulin Tang, Ying Cui, Yuanjing Yu, Yang Qian, Guodong RSC Adv Chemistry By introducing the dye Rhodamine 6G (R6G) into a metal–organic framework (MOF), Mn-sdc-2 (H(2)sdc = 4,4′-stilbenedicarboxylic acid), with a pore size of 20 × 9.8 Å(2), the composite R6G@Mn-sdc-2 was obtained. Subsequently, the MOF Mn-sdc-1 with a smaller pore size of 7.5 × 7.5 Å(2) can be formed through a single-crystal to single-crystal transformation from Mn-sdc-2, thus tightly locking the dye R6G within the pores. Compared with R6G@Mn-sdc-2, R6G@Mn-sdc-1 exhibits a stronger fluorescence emission of R6G. Because the MOF Mn-sdc-1 can reversibly transform back to Mn-sdc-2 in the presence of trace water, the dye R6G can be released. This enables R6G@Mn-sdc-1 to be used as a new luminescent sensor for trace water in organic solvents by monitoring the fluorescence intensity of released R6G. The limit of detection can reach 0.035% in ethanol (v : v), which is among the most sensitive fluorescent water probes. The Royal Society of Chemistry 2020-01-15 /pmc/articles/PMC9048977/ /pubmed/35496118 http://dx.doi.org/10.1039/c9ra08753b Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by/3.0/
spellingShingle Chemistry
Xiao, Fan
Zhang, Jun
Gan, Jiulin
Tang, Ying
Cui, Yuanjing
Yu, Yang
Qian, Guodong
Controlled dye release from a metal–organic framework: a new luminescent sensor for water
title Controlled dye release from a metal–organic framework: a new luminescent sensor for water
title_full Controlled dye release from a metal–organic framework: a new luminescent sensor for water
title_fullStr Controlled dye release from a metal–organic framework: a new luminescent sensor for water
title_full_unstemmed Controlled dye release from a metal–organic framework: a new luminescent sensor for water
title_short Controlled dye release from a metal–organic framework: a new luminescent sensor for water
title_sort controlled dye release from a metal–organic framework: a new luminescent sensor for water
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9048977/
https://www.ncbi.nlm.nih.gov/pubmed/35496118
http://dx.doi.org/10.1039/c9ra08753b
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