Electron diffraction unveils the 2D metal-radical framework of two molecule-based magnets. DOI
Emre Yörük, Constance Lecourt, Dominique Housset

et al.

Inorganic Chemistry Frontiers, Journal Year: 2024, Volume and Issue: 12(1), P. 328 - 341

Published: Nov. 26, 2024

Electron crystallography reveals the crystal structures of two metal-radical coordination frameworks with field-induced metamagnetic transition and gives impetus to research on molecule-based magnets.

Language: Английский

A bipolar-type covalent organic framework on carbon nanotubes with enhanced density of redox-active sites for high-performance lithium-ion batteries DOI

Qingmei Xu,

Zhixin Liu, Yucheng Jin

et al.

Energy & Environmental Science, Journal Year: 2024, Volume and Issue: 17(15), P. 5451 - 5460

Published: Jan. 1, 2024

A COF has been successfully fabricated onto carbon nanotubes as a cathode in LIBs with high energy density of 737.5 W h g −1 , representing the highest one among thus far reported LIB cathodes.

Language: Английский

Citations

19
Single-Crystalline 3D Covalent Organic Frameworks with Exceptionally High Specific Surface Areas and Gas Storage Capacities DOI
Baoqiu Yu,

Yu Tao,

Xuan Yao

et al.

Journal of the American Chemical Society, Journal Year: 2024, Volume and Issue: 146(42), P. 28932 - 28940

Published: Oct. 11, 2024

Single-crystalline covalent organic frameworks (COFs) are highly desirable toward understanding their pore chemistry and functions. Herein, two 50–100 μm single-crystalline three-dimensional (3D) COFs, TAM-TFPB-COF TAPB-TFS-COF, were prepared from the condensation of 4,4′,4″,4‴-methanetetrayltetraaniline (TAM) with 3,3′,5,5′-tetrakis(4-formylphenyl)bimesityl (TFPB) 3,3′,5,5′-tetrakis(4-aminophenyl)bimesityl (TAPB) 4,4′,4″,4‴-silanetetrayltetrabenzaldehyde (TFS), respectively, in 1,4-dioxane under catalysis acetic acid. Single-crystal 3D electron diffraction reveals triply interpenetrated dia-b networks atom resolution, while isostructure TAPB-TFS-COF was disclosed by synchrotron single-crystal X-ray powder Le Bail refinements. The nitrogen sorption measurements at 77 K disclose microporosity nature both activated COFs exceptionally high Brunauer–Emmett–Teller surface areas 3533 4107 m2 g–1, representing thus far record specific area among imine-bonded COFs. This enables to exhibit also methane uptake capacities up 28.9 wt % (570 cm3 g–1) 25 °C 200 bar all reported far. work not only presents structures exceptional but provides an example engineering adjust permanent microporous for storage.

Language: Английский

Citations

17
A novel breakthrough in the invention, properties, synthesis of covalent heptazine framework for its sustainable applications DOI
Asif Hayat, Zeeshan Ajmal, Abdullah Yahya Abdullah Alzahrani

et al.

Materials Today, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Language: Английский

Citations

4
Phthalocyanine Covalent Organic Frameworks: Dimensionality Effect on Third‐Order Nonlinear Optical Properties DOI
Bin Han, Bin Liang, Enhui Zhang

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: April 8, 2024

Abstract Dimensionality of covalent organic frameworks (COFs), in terms 2D and 3D, must greatly influence their properties functionalities due to the different electronic porous structures, but still less investigated 20 years history. Herein, on basis imidization reaction phthalocyanine‐based tetraanhydride monomers with either 1,4‐phenylenediamine or 1,3,5,7‐tetra(4‐aminophenyl)adamantine, 3D imide‐bonded COFs sql pts topology have been prepared explore third‐order nonlinear optical (NLO) properties. In contrast metal‐free analogues, both copper‐phthalocyanine enhanced NLO behaviors according open aperture Z‐scan limiting (OL) results recorded under a nanosecond laser at 532 nm. particular, strong π – staking phthalocyanine units show property bigger susceptibility ( Imχ (3) ) unique reverse saturation absorption response 1064 nm than that species dispersed conjugated modules. Furthermore, femtosecond transient spectra disclose longer excited lifetimes copper metal free samples, helpful property. These findings clearly materials advantages toward characteristics provide new candidates for OL application.

Language: Английский

Citations

11
A review of recent advancement in covalent organic framework (COFs) synthesis and characterization with a focus on their applications in antibacterial activity DOI

F. Al-dolaimy,

Shelesh Krishna Saraswat, Baydaa Abed Hussein

et al.

Micron, Journal Year: 2024, Volume and Issue: 179, P. 103595 - 103595

Published: Feb. 2, 2024

Language: Английский

Citations

9
Toward the Next Generation of Permanently Porous Materials: Halogen-Bonded Organic Frameworks DOI
Michael P. Moghadasnia, Brian J. Eckstein, Hannah R. Martin

et al.

Crystal Growth & Design, Journal Year: 2024, Volume and Issue: 24(6), P. 2304 - 2321

Published: Feb. 27, 2024

Halogen bonding has emerged as a reliable and intuitive handle in crystal engineering, providing predictable, noncovalent interactions capable of directing supramolecular assembly into networks with varying degrees dimensionality. Conceptually similar to hydrogen bonding, halogen represents virtually untapped space for realizing new low-density porous architectures large, highly crystalline domains. With the foundational understanding gained from almost two decades computational empirical investigations, we believe that is on precipice enabling class noncovalently linked permanently materials, aptly called halogen-bonded organic frameworks (XOFs). This perspective focuses defining criteria classification XOFs highlights seminal works both play an integral role toward key strategies synthon tecton design will lead materials accessible void observable porosity. Finally, solvent activation procedures desorption mechanisms are discussed goal achieving thrusting realm materials.

Language: Английский

Citations

9
A dual redox-active and robust polymer enables ultrafast and durable proton-storage capability DOI

Jiachen Yang,

Jing Jin, Peipei Zhang

et al.

Journal of Energy Chemistry, Journal Year: 2024, Volume and Issue: 98, P. 237 - 243

Published: June 25, 2024

Language: Английский

Citations

9
Isomeric 2D and 3D covalent organic frameworks induced by inter-modular hydrogen bonds for photocatalytic CO2 reduction DOI
Xiao Wang, Yucheng Jin,

Xu Ding

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 160788 - 160788

Published: Feb. 1, 2025

Language: Английский

Citations

1
Covalent organic frameworks as advanced materials for adsorption and analysis of contaminants in environmental, biological and food matrices DOI

Yanmin Liang,

Yan Qi,

Nannan Zhong

et al.

Coordination Chemistry Reviews, Journal Year: 2025, Volume and Issue: 533, P. 216507 - 216507

Published: Feb. 21, 2025

Language: Английский

Citations

1
Encoding ordered structural complexity to covalent organic frameworks DOI Creative Commons
Lei Wei,

Xinyue Hai,

Tongtong Xu

et al.

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: March 18, 2024

Installing different chemical entities onto crystalline frameworks with well-defined spatial distributions represents a viable approach to achieve ordered and complex synthetic materials. Herein, covalent organic framework (COF-305) is constructed from tetrakis(4-aminophenyl)methane 2,3-dimethoxyterephthalaldehyde, which has the largest unit cell asymmetric among known COFs. The complexity of COF-305 embodied by nine stereoisomers its constituents showing specific sequences on topologically equivalent sites, can be attributed building blocks deviating their intrinsically preferred simple packing geometries in molecular crystals adapt formation. insight provided supplements principle reticular design perspective non-covalent interactions opens opportunities for pursuing frameworks.

Language: Английский

Citations

8