1
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Zhang M, Sun Z, Sun Y, Zhao L, Yang R, Qu L. A novel amidine-based fluorescent probe TPE-4 + for rapid detection of anionic surfactant sodium dodecyl sulfate. Talanta 2024; 270:125614. [PMID: 38169276 DOI: 10.1016/j.talanta.2023.125614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 12/24/2023] [Accepted: 12/27/2023] [Indexed: 01/05/2024]
Abstract
An accurate, fast, and simple surfactant detection method is of great significance for monitoring surfactants pollution. Sodium dodecyl sulfate (SDS) is one of the most commonly used anionic surfactants and has been listed as an important monitoring pollutant for surfactant residues. Herein, a novel fluorescent probe named TPE-4+ with four amidines as the recognition functional group and tetraphenylethene as the fluorophore was fabricated. Due to the special intramolecular environment, the probe showed selectively identification towards SDS which made an aggregation induced fluorescence enhencement. Under the optimum conditions, the fluorescence enhencement of TPE-4+ is linearly related to the concentration of SDS in the range of 5.0-60.0 μM with limit of detection (LOD) of 0.010 μM and limit of quantification (LOQ) of 0.034 μM. Relative to the reported methods, the probe in our work showed better selectivity and sensitivity. The proposed method was successfully applied for the SDS determination of disinfecting bowls.
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Affiliation(s)
- Mingwei Zhang
- College of Chemistry, Henan Joint International Research Laboratory of Green Construction of Functional Molecules and Their Bioanalytical Applications, Food Laboratory of Zhongyuan, Zhengzhou University, Zhengzhou, 450001, China
| | - Zhiyuan Sun
- Key Laboratory of Food Safety Quick Testing and Smart Supervision Technology for State Market Regulation, Henan Insitute of Food and Salt Industry Inspection Technology, Zhengzhou, 450003, China
| | - Yuanqiang Sun
- College of Chemistry, Henan Joint International Research Laboratory of Green Construction of Functional Molecules and Their Bioanalytical Applications, Food Laboratory of Zhongyuan, Zhengzhou University, Zhengzhou, 450001, China
| | - Linping Zhao
- Zhengzhou Zhongdao Biotechnology Company Limited, Zhengzhou, 450001, China
| | - Ran Yang
- College of Chemistry, Henan Joint International Research Laboratory of Green Construction of Functional Molecules and Their Bioanalytical Applications, Food Laboratory of Zhongyuan, Zhengzhou University, Zhengzhou, 450001, China; Key Laboratory of Food Safety Quick Testing and Smart Supervision Technology for State Market Regulation, Henan Insitute of Food and Salt Industry Inspection Technology, Zhengzhou, 450003, China.
| | - Lingbo Qu
- College of Chemistry, Henan Joint International Research Laboratory of Green Construction of Functional Molecules and Their Bioanalytical Applications, Food Laboratory of Zhongyuan, Zhengzhou University, Zhengzhou, 450001, China; Key Laboratory of Food Safety Quick Testing and Smart Supervision Technology for State Market Regulation, Henan Insitute of Food and Salt Industry Inspection Technology, Zhengzhou, 450003, China.
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2
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Almuhana ARY, Orton GRF, Rosenberg C, Champness NR. Photoinduced radical formation in hydrogen-bonded organic frameworks. Chem Commun (Camb) 2024; 60:452-455. [PMID: 38088086 DOI: 10.1039/d3cc05236b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
Hydrogen-bonded organic frameworks (HOFs) constructed from naphthalene-diimide bearing tectons undergo photochromic changes whilst forming radical bearing species within the framework structure.
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Affiliation(s)
- Asia R Y Almuhana
- School of Chemistry, The University of Birmingham, Birmingham, UK.
- King Faisal University, P.O. 380, Al-Ahsa 31982, Saudi Arabia
| | | | - Callum Rosenberg
- School of Chemistry, The University of Birmingham, Birmingham, UK.
| | - Neil R Champness
- School of Chemistry, The University of Birmingham, Birmingham, UK.
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3
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Pedrini A, Marchetti D, Pinalli R, Massera C. Stimuli-Responsive, Dynamic Supramolecular Organic Frameworks. Chempluschem 2023; 88:e202300383. [PMID: 37675865 DOI: 10.1002/cplu.202300383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 09/04/2023] [Accepted: 09/04/2023] [Indexed: 09/08/2023]
Abstract
Supramolecular organic frameworks (SOFs) are a class of three-dimensional, potentially porous materials obtained by the self-assembly of organic building blocks held together by weak interactions such as hydrogen bonds, halogen bonds, π⋅⋅⋅π stacking and dispersion forces. SOFs are being extensively studied for their potential applications in gas storage and separation, catalysis, guest encapsulation and sensing. The supramolecular forces that guide their self-assembly endow them with an attractive combination of crystallinity and flexibility, providing intelligent dynamic materials that can respond to external stimuli in a reversible way. The present review article will focus on SOFs showing dynamic behaviour when exposed to different stimuli, highlighting fundamental aspects such as the combination of tectons and supramolecular interactions involved in the framework formation, structure-property relationship and their potential applications.
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Affiliation(s)
- Alessandro Pedrini
- Department of Chemistry, Life Sciences and Environmental Sustainability and INSTM UdR Parma, University of Parma, Parco Area delle Scienze 17/A, 43124, Parma, Italy
| | - Danilo Marchetti
- Department of Chemistry, Life Sciences and Environmental Sustainability and INSTM UdR Parma, University of Parma, Parco Area delle Scienze 17/A, 43124, Parma, Italy
- Center for Materials Interfaces, Electron Crystallography, Istituto Italiano di Tecnologia, Viale Rinaldo Piaggio 34, 56025, Pontedera, Italy
| | - Roberta Pinalli
- Department of Chemistry, Life Sciences and Environmental Sustainability and INSTM UdR Parma, University of Parma, Parco Area delle Scienze 17/A, 43124, Parma, Italy
| | - Chiara Massera
- Department of Chemistry, Life Sciences and Environmental Sustainability and INSTM UdR Parma, University of Parma, Parco Area delle Scienze 17/A, 43124, Parma, Italy
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4
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O'Shaughnessy M, Padgham AC, Clowes R, Little MA, Brand MC, Qu H, Slater AG, Cooper AI. Controlling the Crystallisation and Hydration State of Crystalline Porous Organic Salts. Chemistry 2023; 29:e202302420. [PMID: 37615406 PMCID: PMC10946969 DOI: 10.1002/chem.202302420] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 08/18/2023] [Accepted: 08/22/2023] [Indexed: 08/25/2023]
Abstract
Crystalline porous organic salts (CPOS) are a subclass of molecular crystals. The low solubility of CPOS and their building blocks limits the choice of crystallisation solvents to water or polar alcohols, hindering the isolation, scale-up, and scope of the porous material. In this work, high throughput screening was used to expand the solvent scope, resulting in the identification of a new porous salt, CPOS-7, formed from tetrakis(4-sulfophenyl)methane (TSPM) and tetrakis(4-aminophenyl)methane (TAPM). CPOS-7 does not form with standard solvents for CPOS, rather a hydrated phase (Hydrate2920) previously reported is isolated. Initial attempts to translate the crystallisation to batch led to challenges with loss of crystallinity and Hydrate2920 forming favorably in the presence of excess water. Using acetic acid as a dehydrating agent hindered formation of Hydrate2920 and furthermore allowed for direct conversion to CPOS-7. To allow for direct formation of CPOS-7 in high crystallinity flow chemistry was used for the first time to circumvent the issues found in batch. CPOS-7 and Hydrate2920 were shown to have promise for water and CO2 capture, with CPOS-7 having a CO2 uptake of 4.3 mmol/g at 195 K, making it one of the most porous CPOS reported to date.
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Affiliation(s)
- Megan O'Shaughnessy
- Materials Innovation Factory and Department of ChemistryUniversity of Liverpool51 Oxford StreetLiverpoolL7 3NYUK
- Leverhulme Research Centre for Functional Materials DesignUniversity of Liverpool51 Oxford StreetLiverpoolL7 3NYUK
| | - Alex C. Padgham
- Materials Innovation Factory and Department of ChemistryUniversity of Liverpool51 Oxford StreetLiverpoolL7 3NYUK
| | - Rob Clowes
- Materials Innovation Factory and Department of ChemistryUniversity of Liverpool51 Oxford StreetLiverpoolL7 3NYUK
| | - Marc A. Little
- Materials Innovation Factory and Department of ChemistryUniversity of Liverpool51 Oxford StreetLiverpoolL7 3NYUK
| | - Michael C. Brand
- Materials Innovation Factory and Department of ChemistryUniversity of Liverpool51 Oxford StreetLiverpoolL7 3NYUK
- Leverhulme Research Centre for Functional Materials DesignUniversity of Liverpool51 Oxford StreetLiverpoolL7 3NYUK
| | - Hang Qu
- Materials Innovation Factory and Department of ChemistryUniversity of Liverpool51 Oxford StreetLiverpoolL7 3NYUK
| | - Anna G. Slater
- Materials Innovation Factory and Department of ChemistryUniversity of Liverpool51 Oxford StreetLiverpoolL7 3NYUK
| | - Andrew I. Cooper
- Materials Innovation Factory and Department of ChemistryUniversity of Liverpool51 Oxford StreetLiverpoolL7 3NYUK
- Leverhulme Research Centre for Functional Materials DesignUniversity of Liverpool51 Oxford StreetLiverpoolL7 3NYUK
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5
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Liu Y, Chang G, Zheng F, Chen L, Yang Q, Ren Q, Bao Z. Hybrid Hydrogen-Bonded Organic Frameworks: Structures and Functional Applications. Chemistry 2023; 29:e202202655. [PMID: 36414543 DOI: 10.1002/chem.202202655] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Revised: 11/18/2022] [Accepted: 11/22/2022] [Indexed: 11/24/2022]
Abstract
As a new class of porous crystalline materials, hydrogen-bonded organic frameworks (HOFs) assembled from building blocks by hydrogen bonds have gained increasing attention. HOFs benefit from advantages including mild synthesis, easy purification, and good recyclability. However, some HOFs transform into unstable frameworks after desolvation, which hinders their further applications. Nowadays, the main challenges of developing HOFs lie in stability improvement, porosity establishment, and functionalization. Recently, more and more stable and permanently porous HOFs have been reported. Of all these design strategies, stronger charge-assisted hydrogen bonds and coordination bonds have been proven to be effective for developing stable, porous, and functional solids called hybrid HOFs, including ionic and metallized HOFs. This Review discusses the rational design synthesis principles of hybrid HOFs and their cutting-edge applications in selective inclusion, proton conduction, gas separation, catalysis and so forth.
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Affiliation(s)
- Ying Liu
- Key Laboratory of Biomass Chemical Engineering of, Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, 38 Zheda Road, Hangzhou, Zhejiang Province, 310027, P.R. China
| | - Ganggang Chang
- State Key Laboratory of Advanced Technology for, Materials Synthesis and Processing, School of Chemistry Chemical Engineering and Life Science, Wuhan University of Technology, 122 Luoshi Road, Wuhan, Hubei Province, 430070, P.R. China
| | - Fang Zheng
- Institute of Zhejiang University-Quzhou, 99 Zheda Road, Quzhou, Zhejiang Province, 324000, P.R. China
| | - Lihang Chen
- Institute of Zhejiang University-Quzhou, 99 Zheda Road, Quzhou, Zhejiang Province, 324000, P.R. China
| | - Qiwei Yang
- Key Laboratory of Biomass Chemical Engineering of, Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, 38 Zheda Road, Hangzhou, Zhejiang Province, 310027, P.R. China.,Institute of Zhejiang University-Quzhou, 99 Zheda Road, Quzhou, Zhejiang Province, 324000, P.R. China
| | - Qilong Ren
- Key Laboratory of Biomass Chemical Engineering of, Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, 38 Zheda Road, Hangzhou, Zhejiang Province, 310027, P.R. China.,Institute of Zhejiang University-Quzhou, 99 Zheda Road, Quzhou, Zhejiang Province, 324000, P.R. China
| | - Zongbi Bao
- Key Laboratory of Biomass Chemical Engineering of, Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, 38 Zheda Road, Hangzhou, Zhejiang Province, 310027, P.R. China.,Institute of Zhejiang University-Quzhou, 99 Zheda Road, Quzhou, Zhejiang Province, 324000, P.R. China
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6
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Lin ZJ, Mahammed SAR, Liu TF, Cao R. Multifunctional Porous Hydrogen-Bonded Organic Frameworks: Current Status and Future Perspectives. ACS CENTRAL SCIENCE 2022; 8:1589-1608. [PMID: 36589879 PMCID: PMC9801510 DOI: 10.1021/acscentsci.2c01196] [Citation(s) in RCA: 40] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Indexed: 05/20/2023]
Abstract
Hydrogen-bonded organic frameworks (HOFs), self-assembled from organic or metalated organic building blocks (also termed as tectons) by hydrogen bonding, π-π stacking, and other intermolecular interactions, have become an emerging class of multifunctional porous materials. So far, a library of HOFs with high porosity has been synthesized based on versatile tectons and supramolecular synthons. Benefiting from the flexibility and reversibility of H-bonds, HOFs feature high structural flexibility, mild synthetic reaction, excellent solution processability, facile healing, easy regeneration, and good recyclability. However, the flexible and reversible nature of H-bonds makes most HOFs suffer from poor structural designability and low framework stability. In this Outlook, we first describe the development and structural features of HOFs and summarize the design principles of HOFs and strategies to enhance their stability. Second, we highlight the state-of-the-art development of HOFs for diverse applications, including gas storage and separation, heterogeneous catalysis, biological applications, sensing, proton conduction, and other applications. Finally, current challenges and future perspectives are discussed.
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Affiliation(s)
- Zu-Jin Lin
- State
Key Laboratory of Structural Chemistry, Fujian Institute of Research
on the Structure of Matter, Chinese Academy
of Sciences, Fuzhou 350002, P. R. China
- College
of Life Science, Fujian Agriculture and
Forestry University, Fuzhou, Fujian 350002, P. R. China
| | - Shaheer A. R. Mahammed
- State
Key Laboratory of Structural Chemistry, Fujian Institute of Research
on the Structure of Matter, Chinese Academy
of Sciences, Fuzhou 350002, P. R. China
| | - Tian-Fu Liu
- State
Key Laboratory of Structural Chemistry, Fujian Institute of Research
on the Structure of Matter, Chinese Academy
of Sciences, Fuzhou 350002, P. R. China
- Fujian
Science & Technology Innovation Laboratory for Optoelectronic
Information of China, Fuzhou, Fujian 350108, P. R. China
| | - Rong Cao
- State
Key Laboratory of Structural Chemistry, Fujian Institute of Research
on the Structure of Matter, Chinese Academy
of Sciences, Fuzhou 350002, P. R. China
- Fujian
Science & Technology Innovation Laboratory for Optoelectronic
Information of China, Fuzhou, Fujian 350108, P. R. China
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7
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Ding X, Xie Y, Gao Q, Luo Y, Chen J, Ye G. Hydrogen-Bonded Organic Frameworks: Structural Design and Emerging Applications. Chemphyschem 2022; 24:e202200742. [PMID: 36461716 DOI: 10.1002/cphc.202200742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 11/16/2022] [Accepted: 11/28/2022] [Indexed: 12/07/2022]
Abstract
Constructing well-organized organic frameworks with tailor-made functionalities potentially boost multi-domain applications. Hydrogen bonding (H-bonding) is a category of general and weak intermolecular interactions when compared with covalent bonding or metal-ligand coordination. Porous frameworks mainly assembled by H-bonding (named hydrogen-bonded organic frameworks, HOFs) are intrinsically capable of decomposing and regenerating, a distinctive advantage to improve their processability while expanding the applicability. This paper summarizes the basic building concepts of HOFs, including feasible hydrogen bonded motifs, effective molecular structures, and their emerging applications.
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Affiliation(s)
- Xiaojun Ding
- Collaborative Innovation Center of Advanced Nuclear Energy Technology, Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing, 100084, China
| | - Yi Xie
- Collaborative Innovation Center of Advanced Nuclear Energy Technology, Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing, 100084, China
| | - Qiang Gao
- Collaborative Innovation Center of Advanced Nuclear Energy Technology, Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing, 100084, China
| | - Yilin Luo
- Collaborative Innovation Center of Advanced Nuclear Energy Technology, Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing, 100084, China
| | - Jing Chen
- Collaborative Innovation Center of Advanced Nuclear Energy Technology, Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing, 100084, China
| | - Gang Ye
- Collaborative Innovation Center of Advanced Nuclear Energy Technology, Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing, 100084, China
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8
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Blackburn PT, Lipke MC. Effects of a triangular nanocage structure on the binding of neutral and anionic ligands to Co II and Zn II porphyrins. J COORD CHEM 2022. [DOI: 10.1080/00958972.2022.2128786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Affiliation(s)
- P. Thomas Blackburn
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, Piscataway, NJ, USA
| | - Mark C. Lipke
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, Piscataway, NJ, USA
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9
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Song X, Wang Y, Wang C, Wang D, Zhuang G, Kirlikovali KO, Li P, Farha OK. Design Rules of Hydrogen-Bonded Organic Frameworks with High Chemical and Thermal Stabilities. J Am Chem Soc 2022; 144:10663-10687. [PMID: 35675383 DOI: 10.1021/jacs.2c02598] [Citation(s) in RCA: 97] [Impact Index Per Article: 48.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Hydrogen-bonded organic frameworks (HOFs), self-assembled from strategically pre-designed molecular tectons with complementary hydrogen-bonding patterns, are rapidly evolving into a novel and important class of porous materials. In addition to their common features shared with other functionalized porous materials constructed from modular building blocks, the intrinsically flexible and reversible H-bonding connections endow HOFs with straightforward purification procedures, high crystallinity, solution processability, and recyclability. These unique advantages of HOFs have attracted considerable attention across a broad range of fields, including gas adsorption and separation, catalysis, chemical sensing, and electrical and optical materials. However, the relatively weak H-bonding interactions within HOFs can potentially limit their stability and potential use in further applications. To that end, this Perspective highlights recent advances in the development of chemically and thermally robust HOF materials and systematically discusses relevant design rules and synthesis strategies to access highly stable HOFs.
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Affiliation(s)
- Xiyu Song
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, China
| | - Yao Wang
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, China
| | - Chen Wang
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, China
| | - Dong Wang
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, China
| | - Guowei Zhuang
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, China
| | - Kent O Kirlikovali
- Department of Chemistry, International Institute of Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Peng Li
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, China
| | - Omar K Farha
- Department of Chemistry, International Institute of Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
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10
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Yang W, Li W, Yu B, Liu C, Wang H. Fluorescence charge-assisted hydrogen-bonded organic frameworks assembled from tetraphenylethene amidinium cation. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109396] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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11
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Zheng S, Li L, Chen L, Fan Z, Xiang F, Yang Y, Zhang Z, Xiang S. Two Water Stable Phosphate‐Amidinium Based Hydrogen‐Bonded Organic Framework with Proton Conduction. Z Anorg Allg Chem 2022. [DOI: 10.1002/zaac.202200031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Shihe Zheng
- Fujian Provincial Key Laboratory of Polymer Materials College of Chemistry and Materials Science, Fujian Normal University Fuzhou China
| | - Lu Li
- Fujian Provincial Key Laboratory of Polymer Materials College of Chemistry and Materials Science, Fujian Normal University Fuzhou China
| | - Liangji Chen
- Fujian Provincial Key Laboratory of Polymer Materials College of Chemistry and Materials Science, Fujian Normal University Fuzhou China
| | - Zhiwen Fan
- Fujian Provincial Key Laboratory of Polymer Materials College of Chemistry and Materials Science, Fujian Normal University Fuzhou China
| | - Fahui Xiang
- Fujian Provincial Key Laboratory of Polymer Materials College of Chemistry and Materials Science, Fujian Normal University Fuzhou China
| | - Yisi Yang
- Fujian Provincial Key Laboratory of Polymer Materials College of Chemistry and Materials Science, Fujian Normal University Fuzhou China
| | - Zhangjing Zhang
- Fujian Provincial Key Laboratory of Polymer Materials College of Chemistry and Materials Science, Fujian Normal University Fuzhou China
| | - Shengchang Xiang
- Fujian Provincial Key Laboratory of Polymer Materials College of Chemistry and Materials Science, Fujian Normal University Fuzhou China
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12
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Liu X, Zhu C, Tang BZ. Bringing Inherent Charges into Aggregation-Induced Emission Research. Acc Chem Res 2022; 55:197-208. [PMID: 34985255 DOI: 10.1021/acs.accounts.1c00630] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Charged organic molecules, such as DNA, RNA, proteins, and polysaccharides, are ubiquitous and indispensable in natural living systems, which possess specific biological functions to interact with oppositely charged species via electrostatic attraction. The molecules with inherent charges typically differentiate themselves from the neutral ones with unique attributes (e.g., ionic interactions and high polarity), thereby playing a pivotal role in a broad spectrum of areas, including supramolecular chemistry, structural biology, and materials science. It is thus of great importance to explore and develop various charged organic systems for biomimicry and the creation of functional materials. In 2001, our group reported a peculiar luminogen that exhibited weak emission in solution but had significantly enhanced emission in aggregates, and we, for the first time, coined this phenomenon as aggregation-induced emission (AIE). The AIE concept significantly changes the cognition of the scientific community toward classic photophysical phenomena. Since the discovery of this unusual luminescence phenomenon, AIE luminogens (AIEgens) have attracted extensive attention from researchers in a plethora of disciplines because of their high brightness in aggregates, large Stokes shift, excellent photostability, and good biocompatibility. In the past 10 years, our laboratory has expended a great amount of effort to bring inherent charges into AIE research and acquired fruitful achievements.In this Account, we summarize the progress of charged AIE systems primarily made by our laboratory. We start with a brief introduction to charged AIEgens and then discuss their design strategies from molecular and topological perspectives, respectively. Next, we review the unique properties of charged AIEgens, including D-A interactions, anion-π+ interactions, and intermolecular electrostatic interactions, with an emphasis on how they differentiate themselves from the neutral analogs. On the one hand, positively charged AIEgens exhibit unique photophysical properties by forming typical donor-acceptor structures to manipulate the emission wavelength or initiate ultralong persistent luminescence. On the other hand, positively charged AIEgens exhibit unique physiochemical properties, such as an adjustable targeting capability toward biological targets and a strong capability for the generation of reactive oxygen species. Furthermore, we showcase the applications of charged AIEgens in imaging and diagnosis, photodynamic therapy, gas separation, and solar desalination. Finally, we conclude this Account with a summary and some perspectives regarding the existing challenges and future directions. We hope that this Account can spark new ideas and inspire scientists from different disciplines to explore this nascent yet promising research area.
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Affiliation(s)
- Xiaolin Liu
- Department of Chemistry, the Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, and Guangdong-Hong Kong-Macao Joint Laboratory of Optoelectronic and Magnetic Functional Materials, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong 999077, China
| | - Chunlei Zhu
- Key Laboratory of Functional Polymer Materials of Ministry of Education, State Key Laboratory of Medicinal Chemical Biology, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Ben Zhong Tang
- Department of Chemistry, the Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, and Guangdong-Hong Kong-Macao Joint Laboratory of Optoelectronic and Magnetic Functional Materials, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong 999077, China
- Shenzhen Institute of Molecular Aggregate Science and Engineering, School of Science and Engineering, The Chinese University of Hong Kong, Shenzhen, 2001 Longxiang Boulevard, Longgang District, Shenzhen City, Guangdong 518172, China
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13
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White NG. Amidinium⋯carboxylate frameworks: predictable, robust, water-stable hydrogen bonded materials. Chem Commun (Camb) 2021; 57:10998-11008. [PMID: 34605517 DOI: 10.1039/d1cc04782e] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In the last few years, the amidinium⋯carboxylate interaction has emerged as a powerful tool for the relatively predictable construction of families of three dimensional hydrogen bonded organic frameworks. These frameworks can be prepared in water and are surprisingly stable, including to heating in polar organic solvents and water. This feature article describes the design and synthesis of these materials, discusses their structures and stability, and highlights their recent applications for enzyme encapsulation and as precursors for the synthesis of molecularly thin hydrogen bonded 2D nanosheets.
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Affiliation(s)
- Nicholas G White
- Research School of Chemistry, The Australian National University, Canberra, ACT, Australia.
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