In:
Dalton Transactions, Royal Society of Chemistry (RSC), Vol. 51, No. 12 ( 2022), p. 4790-4797
Abstract:
Two novel luminescent metal–organic frameworks (MOFs), [Zn 3 (TCA) 2 (BPB) 2 ] n (DZU-101, where H 3 TCA = 4,4′,4′′-tricarboxyltriphenylamine and BPB = 1,4-bis(pyrid-4-yl)benzene) and [Zn 3 (TCA) 2 (BPB)DMA] n (DZU-102), based on the same ligands and metal ions were synthesized by regulating the amount of water in the solvothermal reaction system. Structural analyses show that the two MOFs have pillar-layered frameworks with Zn 3 clusters connected by the TCA 3− and BPB ligands. Interestingly, DZU-102 possessed a two-fold interpenetrated framework distinct from the individual network of DZU-101. As a result, DZU-102 showed a visual fluorescence color change from chartreuse to azure in m -xylene, while the fluorescence color was turquoise in p -/ o -xylene with no change. Furthermore, compared with p / o -xylene, the fluorescence emission peak of DZU-102 in m -xylene suspension produced an obvious blue shift. Moreover, selective fluorescence sensing experiments were also carried out, which demonstrated that the degree of peak shift was related to the concentration of m -xylene, indicating the potential application of DZU-102 in fluorescence sensing of m -xylene from xylene isomers and further revealed the application of structural interpenetration for luminescence tuning of MOFs.
Type of Medium:
Online Resource
ISSN:
1477-9226
,
1477-9234
Language:
English
Publisher:
Royal Society of Chemistry (RSC)
Publication Date:
2022
detail.hit.zdb_id:
1472887-4
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