Photochemical N-Formylation of Amines and Cyclic Carbonate Synthesis from Epoxides by the Use of Light-Mediated Fixation of Carbon Dioxide Using Covalent Organic Framework/g-C3N4 Composites DOI

Bipasha Banerjee,

Pekham Chakrabortty,

Avik Chowdhury

et al.

Industrial & Engineering Chemistry Research, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 2, 2024

A proficient heterogeneous catalytic system for the photocatalytic N-formylation reaction of amines and cyclic carbonate synthesis from epoxides using CO2 as a carbon source under ambient conditions has been documented. sophisticated approach established current process, aiming successful production formamides carbonates with high levels selectivity efficiency by adjusting several variables such solvent, time, well light involved in reaction. We have synthesized two distinct catalysts, T-COF N-COF, along g-C3N4 heterojunction, demonstrating outstanding performance. Compared to g-C3N4@N-COF, g-C3N4@T-COF photocatalyst showed significantly better light-driven formation other suitable at room temperature. The g-C3N4@COF photocatalysts can be recycled used multiple times without any noticeable decrease efficiency.

Language: Английский

Tailoring functionalities: pore engineering strategies in porous organic cages for diverse applications DOI

Mingming Hua,

Yang Ding, Chunxiao Lv

et al.

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 10, 2024

This review focuses on pore engineering (intrinsic size, extrinsic porosity, and environment) in porous organic cages summarizes the roles of various fields.

Language: Английский

Citations

3
One-Pot Synthesis of Tridentate Bicyclocalixarene Cage Molecules DOI
Na Lin, Rongrong Xie,

Haoqing Jia

et al.

Organic Letters, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 18, 2025

Efficient one-pot synthesis of tridentate bicyclocalixarenes was developed by condensing phloroglucinol with dechlorinated pyrimidine or triazine a yield up to 58%. These cage-like molecules adopt symmetric three-blade propeller structure different terminal function groups and arm spans ranging from 7.5 15.8 Å. Due the 1,3-alternate configuration intermediate heterocalixarenes, cage can be prepared only benzene rings as upper lower caps. They will an ideal scaffold for preparation ultrathin two-dimensional materials.

Language: Английский

Citations

0
Controlled Assembly of [3+6] and [4+8] Porous Organic Cages for Rapid Removal of Iodide from Water DOI

Guoshi Zhang,

Jiajia Sheng, Wenjing Wang

et al.

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

Published: April 30, 2025

Comprehensive Summary Research into controlling the self‐assembly of discrete porous organic cages (POCs) with specific geometries and functions is difficult, but important for understanding their structure‐property relationship, as well behavior in supramolecular chemistry. Herein, we report two POCs based on same tetraformyl‐functionalized calix[4]resorcinarene (C4RACHO) 2,4‐diaminophenol dihydrochloride (DAP) building blocks, including a [3+6] triangular prism ( CPOC‐201‐OH ) [4+8] square CPOC‐401‐OH ), determined by single X‐ray crystallographic analysis. Both exhibit large intrinsic cavities, rich oxygen sites, high porosity Brunauer–Emmett–Teller (BET) surface areas up to 966 m 2 ·g –1 . Owing such virtues, both can effectively capture iodine aqueous media removal rate > 99% within min.

Language: Английский

Citations

0
Chiral Self‐Sorting Directed Supramolecular Organic Framework of Imine Cages for Iodine Capture DOI
Suman Maji,

Suvajit Pal,

Ramalingam Natarajan

et al.

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

Published: May 2, 2025

Abstract Supramolecular organic frameworks (SOFs) with nanotubular pores, assembled through weak non‐covalent interactions, are highly sought‐after for storage, separation, and pollutant capture but limited. Herein, a SOF chiral imine cage is reported by leveraging kinetically driven dynamic covalent chemistry, self‐sorting, dispersion interactions efficient iodine capture. The crystallization‐driven synthesis involves triamine racemic mixture of axially dialdehyde equipped in bimesityl (BM) skeleton that undergoes narcissistic self‐sorting to form homochiral (BM‐PIC) enantiomers, which result the (BM‐PIC‐SOF). Notably, excess drives into heterochiral cages favorable solvent. BM‐PIC‐SOF templated solvent molecules features pores (1.4 nm) stabilized notably, forces between mesitylene rings. Further, kinetic crystals BM‐PIC‐SOF, upon exchange volatile solvents, undergo single‐crystal‐to‐single‐crystal transformation at high temperature thermodynamic polymorph large structural difference. demonstrates remarkable efficacy adsorbing not only from vapor (6.0 g.g −1 ) also (3.88 aqueous mediums (5.01 g ).

Language: Английский

Citations

0
Emerging mechanically interlocked cages DOI

Enping Du,

Xianhui Tang, Wenqiang Zhang

et al.

Nature Reviews Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: June 5, 2025

Language: Английский

Citations

0
Fluorinated vs. non-fluorinated tetrahedral Tri4Tri4 porous organic cages for H2, CO2, and CH4 adsorption DOI Creative Commons
Tim David,

Robert Oestreich,

Tobias Pausch

et al.

Chemical Communications, Journal Year: 2024, Volume and Issue: 60(99), P. 14762 - 14765

Published: Jan. 1, 2024

The fluorinated Et4F4 and non-fluorinated Et4H4 were characterized using single-crystal X-ray diffraction sorption studies, revealing correlations in stability, porosity, selectivity due to structural electronic differences.

Language: Английский

Citations

0
Assembling Molecular Semiconductor Composite for Enhanced Photocatalytic Cyclohexene Oxidation DOI

Haiyan Yu,

Xueting Wang, Tingting Kong

et al.

Chemical Communications, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 1, 2024

A molecular semiconductor composite was assembled by integrating atomically precise Ti 12 -oxo clusters and phosphotungstic acid into a cocrystal system.

Language: Английский

Citations

0
Photochemical N-Formylation of Amines and Cyclic Carbonate Synthesis from Epoxides by the Use of Light-Mediated Fixation of Carbon Dioxide Using Covalent Organic Framework/g-C3N4 Composites DOI

Bipasha Banerjee,

Pekham Chakrabortty,

Avik Chowdhury

et al.

Industrial & Engineering Chemistry Research, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 2, 2024

A proficient heterogeneous catalytic system for the photocatalytic N-formylation reaction of amines and cyclic carbonate synthesis from epoxides using CO2 as a carbon source under ambient conditions has been documented. sophisticated approach established current process, aiming successful production formamides carbonates with high levels selectivity efficiency by adjusting several variables such solvent, time, well light involved in reaction. We have synthesized two distinct catalysts, T-COF N-COF, along g-C3N4 heterojunction, demonstrating outstanding performance. Compared to g-C3N4@N-COF, g-C3N4@T-COF photocatalyst showed significantly better light-driven formation other suitable at room temperature. The g-C3N4@COF photocatalysts can be recycled used multiple times without any noticeable decrease efficiency.

Language: Английский

Citations

0