A hydrogen-bonded organic framework containing fluorescent carbazole and responsive pyridyl units for sensing organic acids

Chen, Liangji; Yuan, Zhen; Feng, Fudong; Zhou, Xin; Xiong, Zhile; Wei, Wuji; Zhang, Hao; Chen, Banglin; Xiang, Shengchang; Zhang, Zhangjing

doi:10.1016/j.cclet.2023.109344

Cited by 5 publications

(2 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As a multifunctional luminescent framework material with both luminescent and porosity properties, it has a broad application prospect in the field of sensing. 63,68,72,[94][95][96][97][98][99][100][101][102] A novel triaryl formamidine salt containing two isomers (BA-C and BA-N) was reported by Lin et al 68 These two isomers can be recrystallized in different solvents to form two different HOFs, and it was found that the removal of acetone from the lattice of BA-C by grinding or heating could lead to the conversion of BA-C to BA-N, and in turn, by exposing to acetone vapor or cooling at 77 K could lead to the conversion of BA-N to BA-C, thus realizing the reversibility of the conversion of BA-N and BA-C, and showing the flexibility of these HOFs (Figure 16). The flexible behavior of this anionic HOF enables dynamic switching of multiple luminescence behaviors, including prompt fluorescence, TADF, and phosphorescence.…”

Section: Sensingmentioning

confidence: 99%

Flexible hydrogen-bonded organic frameworks (HOFs): opportunities and challenges

Li,

Chen

2024

Chem. Sci.

Self Cite

View full text Add to dashboard Cite

show abstract

Section: Sensingmentioning

confidence: 99%

Flexible hydrogen-bonded organic frameworks (HOFs): opportunities and challenges

Li,

Chen

2024

Chem. Sci.

Self Cite

View full text Add to dashboard Cite

show abstract

“…Organic crystals including hydrogen-bonded organic frameworks (HOFs) are auspicious multifunctional materials, − with versatile properties such as functionalized channels, tuneable pore sizes, solution processability, and ease of regeneration, ,− making them suitable for diverse applications including gas adsorption, − proton conduction, , catalysis, , biology, and fluorescence sensing. − A notable characteristic lies in their potential design flexibility, enabling the integration of different organic luminescent chromophores within their structural framework. Given the sensitivity of luminescence as a visual signal, organic crystals with distinctive luminescent characteristics may find applications in chemical sensing, detection, molecular recognition, barcode identification, and other research areas. − …”

Section: Introductionmentioning

confidence: 99%

Subtle Structural Variations within Solvent-Free D–A-Type Organic Crystals for Tuning Emission Wavelength up to 47 nm Shift

Yuan,

Zhou,

Chen

et al. 2024

Crystal Growth & Design

Self Cite

View full text Add to dashboard Cite

Organic crystals have emerged as a promising platform for designing luminescent materials; yet, achieving tuneable fluorescence through subtle structural changes remains exceptionally rare. In this work, we report the fluorescence modulation caused by subtle structural changes in a solvent-free framework, HOF-FJU-101, assembled by a D−A molecule 3,4bis(bis(4-bromophenyl)amino)cyclobut-3-ene-1,2-dione (o-SQDPA-Br). HOF-FJU-101 is a dense hydrogen-bonded organic framework interconnected through hydrogen bonding, π•••π interactions, and conjugation between bromine atoms and benzene rings. Switching the crystallization mother liquor from dimethyl sulfoxide to dichloromethane, acetone, and N,N-dimethylformamide, different isomorphism HOF-FJU-101 crystals were obtained with subtle structure changes in both intermolecular Br4•••Ph C and intramolecular C27−Br4 distances due to the contraction deformation of heavy atom Br, which affects the electron transfer from diphenylamine donor to the squaric acid ring acceptor, resulting in significantly differentiated luminescence behavior. The tuneable emission wavelength range extended from 651 to 604 nm, with a maximum of up to 47 nm shifts.

show abstract

Hydrogen‐Bonded Organic Frameworks as an Appealing Platform for Luminescent Sensing

Xiong,

Xiang,

et al. 2024

Adv Funct Materials

Self Cite

View full text Add to dashboard Cite

Hydrogen‐bonded organic frameworks (HOFs), a novel subclass of porous crystalline materials self‐assembled from organic linkers through hydrogen bonding and other intermolecular interactions, have emerged as an exciting platform for developing multifunctional materials. Recently, luminescent HOF sensors have drawn considerable attention due to their unique advantages, such as hydrogen‐bonding flexibility, inherent luminescent centers in organic linkers, ease of functionalization, low density and toxicity, and good stability. However, a comprehensive study on the design strategies, functionalities, and applications of HOFs in sensing is lacking. In this review, the uniqueness and development of luminescent sensing HOFs are outlined. The design principles and strategies to enable the sensing performance are summarized, including the pre‐design of luminescent organic linkers and post‐modification with additional luminescent species. The state‐of‐the‐art advances in diverse sensing applications are overviewed, such as the detection of chemical pollutants, biomolecules, gases, and physical factors like temperature and mechanical forces. Moreover, the current challenges and corresponding potential avenues are discussed. This review aims to inspire more innovative research on the fabrication of advanced HOFs for luminescent sensing functions.

show abstract

A hydrogen-bonded organic framework containing fluorescent carbazole and responsive pyridyl units for sensing organic acids

Cited by 5 publications

References 41 publications

Flexible hydrogen-bonded organic frameworks (HOFs): opportunities and challenges

Flexible hydrogen-bonded organic frameworks (HOFs): opportunities and challenges

Subtle Structural Variations within Solvent-Free D–A-Type Organic Crystals for Tuning Emission Wavelength up to 47 nm Shift

Hydrogen‐Bonded Organic Frameworks as an Appealing Platform for Luminescent Sensing

Contact Info

Product

Resources

About