Diradicaloid Boron‐Doped Molecular Carbons Achieved by Pentagon‐Fusion DOI Open Access

Liuzhong Yuan,

Yang Jing-yuan,

Shuo Qi

et al.

Angewandte Chemie, Journal Year: 2023, Volume and Issue: 135(51)

Published: Nov. 4, 2023

Abstract Molecular carbons (MCs) are molecular cutouts of carbon materials. Doping with heteroatoms and constructing open‐shell structures two powerful approaches to achieve unexpected unique properties MCs. Herein, we disclose a new strategy design boron‐doped MCs (BMCs), namely by pentagon‐fusion an organoborane π‐system. We synthesized diradicaloid BMC molecules that feature C 24 B 38 π‐skeletons containing pentagonal ring. A thorough investigation reveals such not only leads their local antiaromaticity, but also incorporates internal quinoidal substructure thereby induces singlet diradical states. Moreover, fully fused enable efficient π conjugation, which is expanded over the whole frameworks. Consequently, some intriguing physical achieved, as narrow energy gaps, very broad light absorptions, superior photothermal capability, along excellent photostability. Notably, solid molecule exhibits absorption covers range 300–1200 nm efficiency 93.5 % for solar‐driven water evaporation, thus demonstrating potential BMCs high‐performance organic

Language: Английский

Thienothiophene-centered ladder-type π-systems that feature distinct quinoidal π-extension DOI

Jiaxiang Guo,

Zeyi Li, Tianyu Zhang

et al.

Chinese Chemical Letters, Journal Year: 2023, Volume and Issue: 35(5), P. 109337 - 109337

Published: Nov. 25, 2023

Language: Английский

Citations

2
A tactfully designed photothermal agent collaborating with ascorbic acid for boosting maxillofacial wound healing DOI Creative Commons
Yuxin Qian, Yiting Gao, Dong Wang

et al.

National Science Review, Journal Year: 2024, Volume and Issue: 12(2)

Published: Nov. 26, 2024

ABSTRACT Maxillofacial injuries that may cause severe functional and aesthetic damage require effective immediate management due to continuous exposure diverse microbial populations. Moreover, drug resistance, biofilm formation, oxidative stress significantly impede timely bacterial removal immune function, making the exploration of advanced materials for maxillofacial wound healing an appealing yet highly challenging task. Herein, a near-infrared photothermal sterilization agent was designed, encapsulated with liposomes coated ascorbic acid known its antioxidant immune-regulatory functions. The resulting nanoparticles, 4TPE-C6T-TD@AA, effectively neutralize reactive oxygen species generated by lipopolysaccharides, facilitate conversion pro-inflammatory M1 macrophages anti-inflammatory M2 macrophages, eliminate >90% Staphylococcus aureus Escherichia coli disrupting physiological functions upon 808 nm laser irradiation. In vivo experiments demonstrate 4TPE-C6T-TD@AA rapidly eliminates bacteria from infected wounds in region rats, promotes S. aureus-infected enhancing collagen formation modulating inflammatory microenvironment. conclusion, this study presents promising therapeutic strategy combating infections excessive inflammation treating injuries.

Language: Английский

Citations

0
77 % Photothermal Conversion in Blatter‐Type Diradicals: Photophysics and Photodynamic Applications DOI Open Access

Yu Ji,

Sergio Moles Quintero, Yasi Dai

et al.

Angewandte Chemie, Journal Year: 2023, Volume and Issue: 135(42)

Published: Aug. 31, 2023

Abstract Diradicals based on the Blatter units and connected by acetylene alkene spacers have been prepared. All molecules show sizably large diradical character low energy singlet‐triplet gaps. Their photo‐physical properties concerning their lowest excited state studied in detail steady‐state time‐resolved absorption spectroscopy. We fully identified main optical band full absence of emission from state. A computational study has also carried out that helped to identify presence a conical intersection between ground which produces highly efficient light‐to‐heat conversion absorbed radiation. Furthermore, an outstanding photo‐thermal 77.23 % confirmed, close highest diradicaloid field. For first time, stable diradicals are applied therapy tumor cells with good stability satisfactory performance at near‐infrared region.

Language: Английский

Citations

1
Diradicaloid Boron‐Doped Molecular Carbons Achieved by Pentagon‐Fusion DOI Open Access

Liuzhong Yuan,

Yang Jing-yuan,

Shuo Qi

et al.

Angewandte Chemie, Journal Year: 2023, Volume and Issue: 135(51)

Published: Nov. 4, 2023

Abstract Molecular carbons (MCs) are molecular cutouts of carbon materials. Doping with heteroatoms and constructing open‐shell structures two powerful approaches to achieve unexpected unique properties MCs. Herein, we disclose a new strategy design boron‐doped MCs (BMCs), namely by pentagon‐fusion an organoborane π‐system. We synthesized diradicaloid BMC molecules that feature C 24 B 38 π‐skeletons containing pentagonal ring. A thorough investigation reveals such not only leads their local antiaromaticity, but also incorporates internal quinoidal substructure thereby induces singlet diradical states. Moreover, fully fused enable efficient π conjugation, which is expanded over the whole frameworks. Consequently, some intriguing physical achieved, as narrow energy gaps, very broad light absorptions, superior photothermal capability, along excellent photostability. Notably, solid molecule exhibits absorption covers range 300–1200 nm efficiency 93.5 % for solar‐driven water evaporation, thus demonstrating potential BMCs high‐performance organic

Language: Английский

Citations

1