Halogen‐Bonded Organic Frameworks (XOFs) Based on N⋯Br+⋯N Bonds: Robust Organic Networks Constructed by Fragile Bonds DOI
Shigui Chen,

Xuguan Bai,

Zhen‐Nan Tian

et al.

Angewandte Chemie, Journal Year: 2024, Volume and Issue: 136(35)

Published: June 7, 2024

Abstract Organic frameworks face a trade‐off between the framework stability and bond dynamics, which necessitates development of innovative linkages that can generate stable without hindering efficient synthesis. Although iodine(I)‐based halogen‐bonded organic (XOFs) have been developed, constructing XOFs based on bromine(I) is desirable yet challenging due to high sensitivity species. In this work, we present inaugural construction bromine(I)‐bridged two‐dimensional (2D) frameworks, XOF(Br)−TPy−BF 4 /OTf , sensitive [N⋅⋅⋅Br⋅⋅⋅N] + halogen bonds. The formation was monitored by 1 H NMR, XPS, IR, SEM, TEM, HR‐TEM, SEAD. Their structures were established results from PXRD, theoretical simulations SAXS. More importantly, XOF(Br) displayed excellent chemical thermal stabilities. They exhibited in various solvents aqueous media, even over wide pH range (pH 3–12), while corresponding model compounds BrPy 2 BF decomposed quickly presence minimal water. Furthermore, influence counterions investigated replacing with OTf, improved XOF(Br). This characteristic enabled serve as an oxidizing reagent environments, contrast performed well only media. study not deepens our fundamental understanding but also opens new avenues for application multifunctional XOFs.

Language: Английский

Halogen bonding in supramolecular chemistry: From molecular components to assembled structures DOI
Ao Liu, Ying‐Wei Yang

Coordination Chemistry Reviews, Journal Year: 2025, Volume and Issue: 530, P. 216488 - 216488

Published: Jan. 31, 2025

Language: Английский

Citations

3
Efficient Proton Conduction through [N···X···N]+ Halogen Bond Coordination in Halogen‐Bonded Organic Frameworks DOI Open Access
Qi Zhao,

Siyi Lin,

Penghao Sun

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 9, 2025

Abstract Advancing anhydrous proton‐conducting materials is essential for the fabrication of high‐temperature (>373 K) polymer electrolyte membrane fuel cells (HT‐PEMFCs) and remains a significant challenge. Herein, halogen‐bonded organic frameworks linked by [N···I··N] + interactions are reported as outstanding conductive materials. By incorporating carbazole groups into monomers, two highly crystalline ( XOF‐CSP/CTP ) constructed. These XOFs exhibit high intrinsic conductivity (σ = 1.22 × 10 −3 S cm −1 under conditions. Doping with H 3 PO 4 allows nitrogen sites I on pore walls to stabilize tightly confine network within porous framework through hydrogen bonding, thereby enhancing proton conditions 1.02 −2 ). Temperature‐dependent curves theoretical calculations indicate that transport governed low‐energy barrier hopping mechanism. excellent stability maintain across broad temperature range. This work provides new platform designing potential exchange membranes.

Language: Английский

Citations

1
Halogen‐Bonded Organic Frameworks (XOFs) Based on N⋯Br+⋯N Bonds: Robust Organic Networks Constructed by Fragile Bonds DOI
Shigui Chen,

Xuguan Bai,

Zhen‐Nan Tian

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(35)

Published: June 7, 2024

Organic frameworks face a trade-off between the framework stability and bond dynamics, which necessitates development of innovative linkages that can generate stable without hindering efficient synthesis. Although iodine(I)-based halogen-bonded organic (XOFs) have been developed, constructing XOFs based on bromine(I) is desirable yet challenging due to high sensitivity species. In this work, we present inaugural construction bromine(I)-bridged two-dimensional (2D) frameworks, XOF(Br)-TPy-BF

Language: Английский

Citations

8
Halogen Bond Unlocks Ultra‐High Birefringence DOI
Jin Chen, Mingsheng Xu,

Huai‐Yu Wu

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(44)

Published: July 10, 2024

Anisotropy is crucial for birefringence (Δn) in optical materials, but optimizing it remains a formidable challenge (Δn >0.3). Supramolecular frameworks incorporating π-conjugated components are promising achieving enhanced because of their structural diversity and inherent anisotropy. Herein, we first synthesized (C

Language: Английский

Citations

8
Engineering solution processable 2D halogen-bonded organic framework with exceptional flexible piezoelectric sensing DOI
Jiahao Zhao, Ning Xia, Hongqiang Dong

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 162529 - 162529

Published: April 1, 2025

Language: Английский

Citations

0
An Imidazole‐Based Halogen‐Bonded Organic Framework for the High‐Sensitive Detection of Nitrofuran Antibiotics DOI
Shumeng Wang, Zhen‐Nan Tian,

Guanfei Gong

et al.

Chinese Journal of Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: April 25, 2025

Comprehensive Summary Nitrofuran antibiotics threaten human health and the environment due to their toxicity persistence. Their detection is challenging low concentrations interference, while fluorescence sensing offers superior sensitivity selectivity for effective monitoring. In this work, a novel halogen‐bonded organic framework, XOF‐TPEM , was introduced, constructed using an imidazole‐based ligand AIE molecule, TPEM . The framework successfully characterized by various techniques, including 1 H NMR, PXRD, XPS, FT‐IR, HRTEM, SAED, SEM EDS, confirming its excellent crystalline structure. As electron‐donating fluorophore, fluorescent demonstrates potential as selective sensor electron‐deficient nitrofuran antibiotics. Experimental results show that it exhibits high detecting nitrofurans such NFT, FZD, FLD, NFZ, with LODs of 9.7 ppb, 11.0 19.7 236.1 respectively. Mechanistic studies indicate outstanding performance attributed inner‐filter effect occurring between Through comparison pyridine‐based XOF, superiority imidazole ligands in constructing XOFs demonstrated. This study presents luminescent highlights frameworks, underscoring significant expanding functional applications.

Language: Английский

Citations

0
Enhanced Synergistic Photothermal–Chemotherapy in Bacterial Keratitis Treatment Using Halogen‐Bonded Organic Frameworks (XOFs) Based on N⋯Br+⋯N Bonds DOI Creative Commons
Zhen‐Nan Tian, Shan-Gui Zhou, Yao Qu

et al.

Aggregate, Journal Year: 2025, Volume and Issue: unknown

Published: April 29, 2025

ABSTRACT The swift progression of bacterial keratitis necessitates expeditious therapeutic intervention. Present methodologies are characterized by their protracted duration and invasiveness, which often result in suboptimal antibiotic therapy. Consequently, there is an imperative requirement for the development novel approaches management keratitis. In this study, we present two types XOFs connected [N···Br + ···N] interactions. These frameworks were using 1 H NMR, IR, XPS, SAXS, HR‐TEM. Two‐dimensional (2D) structural models established based on PXRD data theoretical simulations. application these as antibacterial agents treatment explored, effects different connection knots hydrophilicity efficacy compared. As expected, effect interactions superior to [N···I TPPA ‐based with good better than TPPE XOFs. addition, a photothermal agent (IR820) was loaded onto XOF(Br)‐TPPA combined chemotherapy, experimental results indicating substantial enhancement efficacy. This work not only deepens our understanding halogen‐bonded organic but also paves way biomedical materials.

Language: Английский

Citations

0
Halogen Bond Unlocks Ultra‐High Birefringence DOI
Jin Chen,

Miao‐Bin Xu,

Huai‐Yu Wu

et al.

Angewandte Chemie, Journal Year: 2024, Volume and Issue: 136(44)

Published: July 10, 2024

Abstract Anisotropy is crucial for birefringence (Δ n ) in optical materials, but optimizing it remains a formidable challenge >0.3). Supramolecular frameworks incorporating π‐conjugated components are promising achieving enhanced because of their structural diversity and inherent anisotropy. Herein, we first synthesized (C 6 H NO 2 + Cl − ( NAC then constructed halogen‐bonded supramolecular framework I 4 INA by halogen aliovalent substitution with . The organic moieties protonated deprotonated nicotinic acid NA ), respectively. antiparallel arrangement birefringent‐active units leads to significant differences the bonding characteristics between interlayer intralayer domains. Moreover, [O⋅⋅⋅I ⋅⋅⋅N] bond 1D [I ] chain exhibits stronger interactions stricter directionality, resulting more pronounced in‐plane anisotropy intrachain interchain directions. Consequently, exceptional birefringent performance, value 0.778 at 550 nm, twice that (0.363 nm). This significantly exceeds those commercial crystals, such as CaCO 3 (0.172 546 nm), highest reported among ultraviolet crystals. work presents novel design strategy employs bonds connection sites modes units, opening new avenues developing high‐performance

Language: Английский

Citations

3
Construction of radical halogen-bonded organic frameworks with enhanced magnetism and conductivity DOI
Hongqiang Dong, Shang‐Bo Yu,

Shu-Meng Wang

et al.

Chinese Chemical Letters, Journal Year: 2024, Volume and Issue: unknown, P. 110730 - 110730

Published: Dec. 1, 2024

Language: Английский

Citations

3
Halogen‐Bonded Organic Frameworks (XOFs) Based on N⋯Br+⋯N Bonds: Robust Organic Networks Constructed by Fragile Bonds DOI
Shigui Chen,

Xuguan Bai,

Zhen‐Nan Tian

et al.

Angewandte Chemie, Journal Year: 2024, Volume and Issue: 136(35)

Published: June 7, 2024

Abstract Organic frameworks face a trade‐off between the framework stability and bond dynamics, which necessitates development of innovative linkages that can generate stable without hindering efficient synthesis. Although iodine(I)‐based halogen‐bonded organic (XOFs) have been developed, constructing XOFs based on bromine(I) is desirable yet challenging due to high sensitivity species. In this work, we present inaugural construction bromine(I)‐bridged two‐dimensional (2D) frameworks, XOF(Br)−TPy−BF 4 /OTf , sensitive [N⋅⋅⋅Br⋅⋅⋅N] + halogen bonds. The formation was monitored by 1 H NMR, XPS, IR, SEM, TEM, HR‐TEM, SEAD. Their structures were established results from PXRD, theoretical simulations SAXS. More importantly, XOF(Br) displayed excellent chemical thermal stabilities. They exhibited in various solvents aqueous media, even over wide pH range (pH 3–12), while corresponding model compounds BrPy 2 BF decomposed quickly presence minimal water. Furthermore, influence counterions investigated replacing with OTf, improved XOF(Br). This characteristic enabled serve as an oxidizing reagent environments, contrast performed well only media. study not deepens our fundamental understanding but also opens new avenues for application multifunctional XOFs.

Language: Английский

Citations

0