Visualization of Anisotropic and Stepwise Piezofluorochromism in an MOF Single Crystal

Chen, Cheng‐Xia; Wei, Zhang‐Wen; Ye, Fan; Su, Peiyang; Ai, Yeye; Qiu, Qian‐Feng; Kai, Wu; Yin, Shao‐Yun; Pan, Mei; Su, Cheng‐Yong

doi:10.1016/j.chempr.2018.08.025

Cited by 78 publications

(38 citation statements)

References 51 publications

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“…3c and S11†). Although MOFs responding to external pressure35 and chemical species36 alter the colour of their fluorescence to a similarly strong extent, such drastic changes occurring in MOFs as a function of temperature are relatively rare 37. Further heating and cooling of the material gives a very similar emission and intensity profile as in the first thermal sequence (Fig.…”

Section: Resultsmentioning

confidence: 92%

Temperature-dependent interchromophoric interaction in a fluorescent pyrene-based metal–organic framework

et al. 2019

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Section: Resultsmentioning

confidence: 92%

Temperature-dependent interchromophoric interaction in a fluorescent pyrene-based metal–organic framework

et al. 2019

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“…It is well known that generally zirconium‐based MOFs possess good structural stability . MOF‐808(Zr) as one member of them has received much attention due to its advantages such as high specific surface area (∼2000 m 2 /g), large pore opening, good stability and rich metal sites .…”

Section: Introductionmentioning

confidence: 99%

Creation of Active Sites in MOF‐808(Zr) by a Facile Route for Oxidative Desulfurization of Model Diesel Oil

et al. 2020

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MOF‐808(Zr) as an important member of metal‐organic frameworks (MOFs) has attracted much attention due to its good stability, large surface area and rich zirconium metal centers. However, Zr sites in the structure of MOF‐808(Zr) are inactive in many catalytic reactions due to they are well coordinated with organic ligands like 1,3,5‐benzenetricarboxylic acid (BTC) and formate anions. Thus, removing formate anions have been attempted to create more active sites in the structure for many reactions while maintaining the structural stability. In this work, we report that the formate ligands in MOF‐808(Zr) can be facilely removed by the treatment in hot ethanol for 4 h. The obtained material as a heterogeneous catalyst exhibited superior catalytic activity in the oxidative desulfurization (ODS) reaction of dibenzothiophene (DBT) compared with reported MOFs catalysts. The conversion of DBT in model diesel oil could reach >99 % within a reaction time of 20 min at 323 K, which is five times as that over parent MOF‐808(Zr). As a result, the sulfur content was decreased from 1000 ppm to less than 10 ppm. Such catalytic performance should be mainly attributed to the creation of more active sites in the structure of MOF‐808(Zr) after the removal of formate anions.

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“…It is noteworthy that there are many important reports pertinent to the abovementioned seven types of stimuli [ 226–233 ] and some other stimuli‐responsive systems are not discussed in this article due to the space limitation, such as the responses to magnetic field, [ 234 ] chemical species like NH 3 and H 2 S, [ 235,236 ] organic pollutants, [ 237 ] and drugs, [ 238 ] and the specific response to biological species like DNA, [ 239 ] virus, [ 240 ] pathogen, [ 241 ] bacteria, [ 242 ] etc. In these cases, AIEgens can also signal their responses to these stimuli in the form of luminescence.…”

Section: Discussionmentioning

confidence: 99%

Stimuli‐Responsive AIEgens

et al. 2021

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The unique advantages and the exciting application prospects of AIEgens have triggered booming developments in this area in recent years. Among them, stimuli‐responsive AIEgens have received particular attention and impressive progress, and they have been demonstrated to show tremendous potential in many fields from physical chemistry to materials science and to biology and medicine. Here, the recent achievements of stimuli‐responsive AIEgens in terms of seven most representative types of stimuli including force, light, polarity, temperature, electricity, ion, and pH, are summarized. Based on typical examples, it is illustrated how each type of systems realize the desired stimuli‐responsive performance for various applications. The key work principles behind them are ultimately deciphered and figured out to offer new insights and guidelines for the design and engineering of the next‐generation stimuli‐responsive luminescent materials for more broad applications.

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Visualization of Anisotropic and Stepwise Piezofluorochromism in an MOF Single Crystal

Cited by 78 publications

References 51 publications

Temperature-dependent interchromophoric interaction in a fluorescent pyrene-based metal–organic framework

Temperature-dependent interchromophoric interaction in a fluorescent pyrene-based metal–organic framework

Creation of Active Sites in MOF‐808(Zr) by a Facile Route for Oxidative Desulfurization of Model Diesel Oil

Stimuli‐Responsive AIEgens

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