2022
DOI: 10.1016/j.molstruc.2022.132728
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ACQ-to-AIE Transformation by Regioisomerization of Rofecoxib Derivatives for Developing Novel Mechanochromic and Acidochromic Materials

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Cited by 12 publications
(8 citation statements)
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“…Despite theoretically similar possibilities to the occurrence of C…C intermolecular contacts (number of carbon atoms in the whole group of compounds in the range of 16–20), the value positively influencing the Φ PL (blue bar on the right side of y -axis, MTS-7 , MTS-8 , MTS-11 , MTS-14 ) is observed only for compounds which are arranged in sheets lying one above the other (which results in π…π stacking interactions). Such interactions and hydrogen bonds are often indicated as factors that quench the fluorescence quantum yield [ 10 , 13 , 25 ]. In the group of methoxy- trans -stilbene derivatives, the average measured Φ PL of compounds with hydrogen bonds in the crystal lattice is higher (0.44) than the others (0.29).…”
Section: Resultsmentioning
confidence: 99%
“…Despite theoretically similar possibilities to the occurrence of C…C intermolecular contacts (number of carbon atoms in the whole group of compounds in the range of 16–20), the value positively influencing the Φ PL (blue bar on the right side of y -axis, MTS-7 , MTS-8 , MTS-11 , MTS-14 ) is observed only for compounds which are arranged in sheets lying one above the other (which results in π…π stacking interactions). Such interactions and hydrogen bonds are often indicated as factors that quench the fluorescence quantum yield [ 10 , 13 , 25 ]. In the group of methoxy- trans -stilbene derivatives, the average measured Φ PL of compounds with hydrogen bonds in the crystal lattice is higher (0.44) than the others (0.29).…”
Section: Resultsmentioning
confidence: 99%
“…19,25 This balance approach has emerged as an exciting alternative for the exploration and optimization of DSEgens. [26][27][28] Combining with our previous work, the conversion from ACQ to AIE was achieved by migrating the same group from the para-to ortho-position on the rofecoxib scaffold, [29][30][31] and it is possible to explore a balance state between ACQ and AIE, and then find a new simple DSEgen system by minor modification of the rofecoxib scaffold. Although this a Fujian Provincial Key Laboratory of Screening for Novel Microbial Products, Fujian hypothesis is an intriguing question without straightforward guidance, it is meaningful to explore.…”
Section: Introductionmentioning
confidence: 85%
“…This distinct difference in fluorescence intensity suggested a significant ACQ effect of ROIN. 41,42 It is remarkable that compound ROIN-B not only exhibits bright fluorescence in the aggregation state but also shows strong emission in pure DMSO (Figure 2D). After the addition of water in DMSO ( f w = 10%, Φ PL = 2.75%), the emission wavelength maximum of ROIN-B red shifted to a longer region, and the luminescent intensity increased.…”
Section: Acq and Dse Properties Of Roin And Roin-bmentioning
confidence: 99%