NIR Clusteroluminescence of Non‐conjugated Phenolic Resins Enabled by Through‐Space Interactions DOI
Ziteng Zhang, Jianyu Zhang, Zuping Xiong

et al.

Angewandte Chemie, Journal Year: 2023, Volume and Issue: 135(30)

Published: May 30, 2023

Abstract Clusteroluminescence (CL) and through‐space interactions (TSIs) of non‐conjugated molecules have drawn more attention due to their unique photophysical behaviors that are different from largely conjugated luminogens. However, achieving red even near‐infrared (NIR) emission such systems is still challenging the intrinsic drawbacks lack theories for structure–property relationships. In this work, six phenolic resins designed synthesized based on two molecule‐engineering strategies: increasing number TSIs units introducing electron‐donating/‐withdrawing groups. All verified as luminogens with CL property (CLgens), first example CLgens NIR (maximum wavelength ≥680 nm) high absolute quantum yield (47 %) reported. Experiments theoretical analysis reveal types, locally excited state charge transfer state, play essential roles in these polymers, which could be manipulated via changing structural conformation electron density or altering transition behaviors. This work not only provides an approach manipulate polymers but also endows commercially available practical value luminescence materials.

Language: Английский

Nucleophilic Substitution Polymerization‐Induced Emission of 1,3‐Dicarbonyl Compounds as a Versatile Approach for Aggregation‐Induced Emission Type Non‐Traditional Intrinsic Luminescence† DOI

Yu‐Jiao Chen,

Meng‐Qin Pu,

Liang‐Tao Wu

et al.

Chinese Journal of Chemistry, Journal Year: 2023, Volume and Issue: 41(14), P. 1705 - 1712

Published: Feb. 17, 2023

Comprehensive Summary Nucleophilic substitution reaction and 1,3‐dicarbonyl compounds play significant roles in organic chemistry, non‐traditional intrinsic luminescence (NTIL) has become an emerging research area. Here, we demonstrate the successful nucleophilic polymerization of compounds, including acetylacetone, 3,5‐heptanedione, methyl acetoacetate, cyclopentane‐1,3‐dione, 1,3‐indandione, 1‐phenyl‐1,3‐butanedione dibenzoylmethane, where reactive hydrogens at α position are involved. Through this base catalyzed polycondensation between α,α’‐dibromo xylene, a series nonconjugated poly(1,3‐dicarbonyl)s have been successfully prepared with high yield (up to >99%) under mild conditions. Investigations reveal that exhibits self‐accelerating effect flexible stoichiometry characteristics, which advantages over traditional methods. This also intriguing polymerization‐induced emission (PIE) exhibit chemical structure dependent aggregation‐induced (AIE) type NTIL. work therefore expands monomer, method, property libraries polymer may cause inspirations methodology, PIE, AIE

Language: Английский

Citations

12
Deep-red ultralong room temperature phosphorescence of chitosan-based nanofibrous membrane activated by carboxylic acids DOI
Yifeng Cao, Kaimin Zhang, Haiyang Wang

et al.

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 476, P. 146781 - 146781

Published: Oct. 19, 2023

Language: Английский

Citations

12
Sulfur‐Bridged Pure Organic Ester Clusters Exhibiting Near‐Infrared Fluorescence DOI Open Access
Xiong Liu,

Jiafang Guo,

Zuping Xiong

et al.

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

Published: Feb. 7, 2025

Abstract The development of near‐infrared (NIR) luminophores offers significant potential in the life sciences, yet constructing pure organic clusteroluminescence (CL) from nonconjugated polymers via through‐space interaction (TSI) remains a substantial challenge. Herein, it is revealed that sulfur (S) functions as bridge between isolated ester groups small molecule models, facilitating ( n , π*) transitions. Building on this, RCP1 ‐ RCP5 and P1 P4 are synthesized to produce NIR‐CL luminophores. introduction S enhances chain clustering polyesters modulates inter‐/intra‐chain TSI, while micro‐folding within chains promotes adjacent atoms, resulting marked redshift. Notably, displayed fluorescence peak at 800 nm, extending 883 which sets new record for CL. Additionally, full‐color fluorescent fibers fabricated explored application clusteroluminescent dyes. This work deepens understanding CL mechanisms provides critical insights developing high‐efficiency materials.

Language: Английский

Citations

0
Clickable Polymerization‐Induced Emission Luminogens Toward Color‐Tunable Modification of Non‐Traditional Intrinsic Luminescent Polymers DOI
Xiaoli Sun, Xue Hong,

Xi‐Yao Gu

et al.

Macromolecular Rapid Communications, Journal Year: 2024, Volume and Issue: 45(11)

Published: Feb. 17, 2024

Non-traditional intrinsic luminescent (NTIL) polymer is an emerging field, and its color-tunable modification highly desirable but still rarely investigated. Here, a click chemistry approach for the modifications of NTIL polymers by introducing clickable polymerization-induced emission luminogen (PIEgen), demonstrated. Through Cu-catalyzed azide-alkyne cycloaddition chemistry, series PIEgens successful prepared, which further polymerized via reversible addition-fragmentation chain transfer (RAFT) polymerization. Interestingly, after modification, these monomers are nonemissive in both solution aggregation states; while, corresponding exhibit intriguing aggregation-induced (AIE) characteristics, confirming their PIEgen characteristics. By varying alkynyl substitutions, achieved with wavelength from 448 to 498 nm, revealing verifying importance polymers. Further luminescence energy application carried out as well. This work therefore designs opens new avenue may cause inspirations research fields including polymer, NTIL, AIE modification.

Language: Английский

Citations

3
Tuning Covalent Bonding in Znic-Based Hybrid Halides towards Tunable Room-Temperature Phosphorescence DOI Creative Commons
Yanyan Cui,

Jiawei Lin,

Kunjie Liu

et al.

Chemical Science, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

This work investigates organic–inorganic metal halides with room-temperature phosphorescence, showing that tuning the organic components and their interactions improves RTP performance for anti-counterfeiting applications.

Language: Английский

Citations

0
Quenching mechanism of PEG emission by pyrimidines and their detections using PEG as fluorescent sensor DOI
Xubao Jiang, Suisui Wang, Xiang Zheng Kong

et al.

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 468, P. 143617 - 143617

Published: May 19, 2023

Language: Английский

Citations

8
Barbier polymerization induced emission toward stimuli-responsive aggregation-induced emission type green non-traditional intrinsic luminescence DOI

Liang‐Tao Wu,

Deshan Li,

Quan‐Xi Shi

et al.

Dyes and Pigments, Journal Year: 2023, Volume and Issue: 219, P. 111554 - 111554

Published: July 20, 2023

Language: Английский

Citations

8
The superiority of nonconjugated structures in fluorescence: through-space vs. through-bond charge transfer DOI

Weihao Tu,

Zuping Xiong, Lei Wang

et al.

Science China Chemistry, Journal Year: 2024, Volume and Issue: 67(9), P. 3121 - 3130

Published: July 8, 2024

Language: Английский

Citations

2
Efficient and White-Light-Like Emission from Nonconventional Luminescent Materials in Solution States DOI

Jiao He,

Anna Qin,

Guanxing Lao

et al.

ACS Applied Polymer Materials, Journal Year: 2024, Volume and Issue: 6(21), P. 13055 - 13064

Published: Oct. 19, 2024

Nonconventional luminescent materials (NLMs) offer promising alternatives to traditional organic luminophores owing their lack of extensive π-conjugated structures. These inherent advantages like good biocompatibility, hydrophilicity, low cytotoxicity, and environmental friendliness, along with simple synthesis methods. However, achieving efficient luminescence in NLMs often necessitates highly concentrated solutions or solid states, which can be detrimental cells due cytotoxicity osmotic pressure changes, hindering potential bioimaging. This work presents the three polyesters, HJ-1, HJ-2, HJ-3, via a ring-opening reaction diglycidyl 1,2-cyclohexanedicarboxylate enamines. polymers exhibit remarkable concentration- excitation wavelength-dependent fluorescence emission dilute solutions, maximum quantum yield 8.8% at 0.1 mg/mL. Notably, HJ-3 displays rare white-like solution. Additionally, these demonstrate sensitivity temperature pH variations, making them fluorescent probes. Their low-concentration highlight as valuable tools for cell imaging applications.

Language: Английский

Citations

2
Recent Advances and Challenges in Barbier Polymerization DOI

Yu‐Jiao Chen,

Liang‐Tao Wu,

Hang Xiao

et al.

ChemPlusChem, Journal Year: 2022, Volume and Issue: 88(1)

Published: Dec. 13, 2022

Abstract The Barbier reaction, a classical name reaction for carbon‐carbon bond formation, has played important roles in organic chemistry over 120 years. introduction of the into polymer development novel polymerization, expands methodology, monomer, chemical structure and property libraries aggregation‐induced emission (AIE) non‐traditional intrinsic luminescence (NTIL). This mini review focuses on including brief history importance polymerization methods design achievements from molecular strategies, functionalities properties. An outlook is also proposed. therefore may cause inspirations to scientists different fields.

Language: Английский

Citations

10