Article
Chemistry, Multidisciplinary
Wenquan Li, Ying Chen, Yanying Ye, Hongyu Guo, Fafu Yang
Summary: This paper reported the synthesis and properties of triphenylene-fluorescein-triphenylene trimers, which displayed stable hexagonal columnar mesophase and high fluorescence. The trimers were constructed with -C3H6- and -C6H12- bridges and showed promising results with regards to fluorescence quantum yields and Stokes shifts.
Article
Chemistry, Multidisciplinary
Wen-Hao Yu, Yan-Hong Wang, Chun Feng, Hai-Liang Ni, Ping Hu, Bi-Qin Wang, Ke-Qing Zhao, Qiang Fu
Summary: Two series of triphenylene-based dimers with different fluoromethylene spacer lengths were synthesized and their phase behavior was investigated. The length of the spacer had a minor effect on the phase transition temperatures of the dimers. However, the dimers with a longer fluoromethylene spacer exhibited higher clearing points and wider mesomorphic phase ranges compared to their hydrocarbon analogs. Additionally, amide-linked dimers showed good gelation properties, indicating the collaboration of hydrogen bonding and pi interactions in gel formation.
Article
Chemistry, Physical
Min Chen, Tai-Rong Zhang, Wen-Hao Yu, Qiang-Gen Li, Shi-Kai Xiang, Peng Cao, Ke-Qing Zhao, Chun Feng, Bi-Qin Wang
Summary: A series of new mixed tail triphenylene derivatives with specific side chains were synthesized and characterized, and their liquid-crystalline properties and the effects of variations in the lengths of alkoxy and N-alkyl chains on mesogens were studied. It was found that the length of the alkoxy chains had a more significant impact on the mesogens, and the intermolecular hydrogen bonding induced by the amide functional group enhanced the stability of the mesophase. Additionally, it was discovered that intermolecular hydrogen bonding was not the sole factor responsible for gel formation in these molecules.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Chemistry, Organic
Yue Wang, Wenjie Bi, Shiheng Zhao, Yingliang Liu, Kunlun Wang, Shengang Xu, Shaokui Cao
Summary: In this study, a series of triphenylene-based discotic liquid crystals (DLCs) modified by fluorination or chlorination were synthesized and analyzed. The fluorinated compounds exhibited higher mesophase stability than the chlorinated compounds. Moreover, the modification of side chains enhanced the self-assembly behavior and decreased the intracolumnar distance, which could potentially improve the performance of these compounds in electronic devices.
Article
Materials Science, Multidisciplinary
Hang Lin, Ke-Xiao Zhao, Min Jing, Xiu-Hai Long, Ke-Qing Zhao, Ping Hu, Bi-Qin Wang, Peng Lei, Qing-Dao Zeng, Bertrand Donnio
Summary: This article reports the synthesis of a unique family of liquid-crystalline dimers and their properties. These dimers have multiple functions and can self-assemble into large columnar superlattices. They can also form gels in solvents and exhibit high fluorescence quantum yields. These materials are of great importance in the field of organic electronics.
JOURNAL OF MATERIALS CHEMISTRY C
(2022)
Article
Chemistry, Physical
M. Powers, R. J. Twieg, J. Portman, B. Ellman
Summary: A large family of discotic liquid crystals that deviate from the traditional paradigm has been discovered. By studying a group of closely related small tail-free disk-like molecules, researchers were able to identify the columnar liquid crystalline mesophase and investigate its structural determinants. This finding provides valuable insights into the behavior of these tail-free discotic liquid crystals.
JOURNAL OF CHEMICAL PHYSICS
(2022)
Article
Chemistry, Multidisciplinary
Huifang Su, Ziwei Deng, Yanling Liu, Yun Zhao, Hongjian Liu, Zheng Zhao, Ben Zhong Tang
Summary: Antibody decorated nanoparticles with brightly red emissions are promising probes for targeted detection of cancer cells. A new red emissive luminogen with aggregation-induced emission property has been designed and synthesized. These AIE nanoparticles provide an ideal architecture for cancer cell-specific fluorescence imaging and detection with bright red emission, high photostability, and good specificity.
MATERIALS CHEMISTRY FRONTIERS
(2022)
Article
Chemistry, Multidisciplinary
Chenhui Wei, Xinyue Zhao, Ao Zhang, Mengfei Wang, Xinran Zhang, Maoxin Zhang, Jianchuang Wang, Yi Fang, Hao Wu, Chunxiu Zhang
Summary: 2- and 3,6-position bulky group substituted triphenylene discotic carboxylic esters were synthesized and their self-assembly properties were investigated. The results showed that most of them can form long-range ordered columnar superlattices and achieve perfectly aligned monodomains by adjusting the steric hindrance effect of the bulky groups. Moreover, these materials exhibit high charge carrier mobilities, making them promising candidates for organic optoelectronic devices.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Spectroscopy
Yilan Wang, Hongliang Liu, Zhao Chen, Shouzhi Pu
Summary: The designed AIEE-active fluorescent sensor combines the AIE effect of tetraphenylethylene with the cyanide acceptor of phenanthro[9,10-d]imidazole, exhibiting AIEE and MFC properties in DCM/n-hexane or THF/H2O, along with a large Stokes shift and ICT process.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2021)
Article
Chemistry, Physical
Avdhesh Patel, Vinay S. Sharma, Venkata Ganga Rao, V. A. Rana, Anuj S. Sharma, Pranav S. Shrivastav
Summary: Newly designed and synthesized bi-substituted triphenylene derivatives based on thiacalixarene exhibit a stabilized columnar hexagonal phase with self-assembly at room temperature and show dielectric behavior. The properties and structure of these compounds were investigated using various analytical techniques.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Chemistry, Applied
Ningning Zhou, Juanfang Zhou, Yanpeng Lu, Defang Xu, Xingliang Liu
Summary: This study designed and synthesized two novel D-A type tetraphenylethene-based fluorophores, which exhibited good solid-state luminescence and remarkable aggregation-induced emission behavior. They also displayed high-contrast mechanofluorochromic properties.
Article
Chemistry, Multidisciplinary
Xiaoxie Ma, Weijie Chi, Xie Han, Chao Wang, Shenghua Liu, Xiaogang Liu, Jun Yin
Summary: This work investigates the impact of non-conjugated and conjugated linkages between TPE and NI, revealing different optical properties resulting from different connections and providing important guidance for the rational design of AIE materials.
CHINESE CHEMICAL LETTERS
(2021)
Article
Materials Science, Multidisciplinary
Xinxin Zhang, Quan Xu, Zhao Chen, Fei Li, Fang Liu, Jingkun Xu, Ge Zhang
Summary: This work proposes a strategy of molecular conformation-changing to prepare mechano chromic materials with high solid-state luminescent efficiency. By synthesizing three compounds and using aggregation induced emission luminogen (AIEgen) TPE unit, stable solid-state emission is achieved. The study shows that mechano chromic characteristics are closely related to changes in molecular conformation and arrangement.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Chemistry, Applied
Jiang Wu, Jun Yin, Sheng Chen, Hongyan Xiao, Bin Yan, Qin Yang
Summary: Three novel bis(tetraphenylethene) (BTPE) derivatives were efficiently synthesized, all displaying aggregation-induced emission characteristics. Linking two tetraphenylethylenes via a sulfur atom with different oxidation states offered compounds showing reversible mechanofluorochromic behavior. Notably, sulfone-based BTPE 3 exhibited polymorphism and three observable morphologies could be interconverted.
Article
Chemistry, Applied
Hua Sun, Jiale Jin, Qi Wang, Shifan Wang, Weidan Na, Zhao Li, Bing Yao, Po Sun, Liming Dong, Xiao-Chun Hang
Summary: AzaBP-TPE is an organic material with strong solid-state fluorescence and sensitive stimuli responsiveness. It exhibits aggregation-induced emission and mechanochromic fluorescence. It emits bright-yellow light and can change its fluorescence color through mechanical force. The bright-yellow fluorescence can also be recovered by exposure to chloroform vapor. Additionally, AzaBP-TPE can be used as a functional dye in bio-imaging.
Article
Nanoscience & Nanotechnology
Xi-Ran Sun, Hai-Ping Yang, Wei Zhang, Shuai Zhang, Jian-Hang Hu, Ming Liu, Xi Zeng, Qiu Li, Carl Redshaw, Zhu Tao, Xin Xiao
Summary: The hosts-guest interaction in the HmeQ[5]/DB system was studied, and a new supramolecular gel was prepared through a simple heating/mixing cooling method. The gel showed temperature sensitivity and exhibited double emission ability at room temperature due to its ordered microstructure, which prevented nonradiative transition of the embedded fluorescence material BrNp. Moreover, the gel showed good biocompatibility and low biotoxicity, making it suitable for cytoplasmic staining of HeLa cells.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Engineering, Environmental
Ting Ting Zhang, Xi Nan Yang, Jian Hang Hu, Yang Luo, Hou Jing Liu, Zhu Tao, Xin Xiao, Carl Redshaw
Summary: In this work, a supramolecular approach was used to control emission and generate white light for applications in 3D printing and counterfeiting. Two dual-mode fluorescence systems were developed, which could provide bright white emission and be easily controlled by temperature. The systems showed promising potential in LED lamps, polymeric matrices, and practical applications such as anti-counterfeiting materials.
CHEMICAL ENGINEERING JOURNAL
(2023)
Review
Chemistry, Multidisciplinary
Jing-Xin Liu, Kai Chen, Carl Redshaw
Summary: Since the successful separation of different cucurbit[n]uril homologues in 2001, the field of cucurbit[n]uril supramolecular chemistry has rapidly developed. The combination of Q[n] cavity size and various external stimuli has led to the creation of various Q[n]-based mechanically interlocked molecules (MIMs), including (pseudo)rotaxanes, catenanes, dendrimers, and poly(pseudo)rotaxanes. This review article highlights the important advancements in the field of Q[n]-based MIMs over the past two decades, discusses examples of heterowheel (pseudo)rotaxanes and poly(pseudo)rotaxanes involving Q[n]s, and reflects on the opportunities and challenges of constructing Q[n]-based stimuli-responsive MIMs.
CHEMICAL SOCIETY REVIEWS
(2023)
Article
Chemistry, Multidisciplinary
Kai Chen, Zhao-Qiang Zhu, Ming-Hui Zhang, Xiang Yang, Jie Li, Chen Chen, Carl Redshaw
Summary: Based on the analysis of the crystal structures of three coordination polymers, it was found that the deprotonated 4,4'-biphenyldisulfonic acid plays an important role in the self-assembly of these coordination polymers. In complexes 1 and 2, only the TMeQ[6] is involved in coordination with the Ca2+ and Sr2+ ions. The BPDS2- is involved in outer-surface interactions with the TMeQ[6]. Meanwhile, in complex 3, the BPDS2- is also coordinated with the Ba2+ ion. These coordination polymers provide a new strategy to design and construct Q[n]-based poly-dimensional coordination polymers, which can be built by one-dimensional Q[n]-metal coordination chains via outer-surface interactions. Furthermore, complex 1 can detect NFX (norfloxacin) molecules with high selectivity.
Article
Chemistry, Multidisciplinary
Jing Xu, Qi Wang, Wei-Wei Ge, Dong Wu, Carl Redshaw, Kai Chen
Summary: In this study, 1,5-naphthalene disulfonic acid (H2NDS) was used as a structure-directing agent to construct cucurbit[5]uril-based supramolecular assemblies. Four novel assemblies were obtained by adding alkali metal cations to the Q[5]-H2NDS system. These assemblies exhibited similar structures and the main difference was the coordination modes of the metal cations. Compound 2 showed high selectivity in detecting NFX molecules and could capture AR, CV, and MB from aqueous media.
Article
Chemistry, Multidisciplinary
Wen-Hao Yu, Yan-Hong Wang, Chun Feng, Hai-Liang Ni, Ping Hu, Bi-Qin Wang, Ke-Qing Zhao, Qiang Fu
Summary: Two series of triphenylene-based dimers with different fluoromethylene spacer lengths were synthesized and their phase behavior was investigated. The length of the spacer had a minor effect on the phase transition temperatures of the dimers. However, the dimers with a longer fluoromethylene spacer exhibited higher clearing points and wider mesomorphic phase ranges compared to their hydrocarbon analogs. Additionally, amide-linked dimers showed good gelation properties, indicating the collaboration of hydrogen bonding and pi interactions in gel formation.
Article
Chemistry, Organic
Yu-Tao Liu, Yu-Hang Fan, Yan Mei, Dong-Jie Li, Yan Jiang, Wen-Hao Yu, Fei Pan
Summary: A mild and convenient defluorinative reductive cross coupling between gem-difluoroalkenes and aliphatic aldehydes has been developed, yielding diverse silyl-protected beta-fluorinated allylic alcohols. The reaction is simple to carry out and exhibits good functional group tolerance, providing moderate to excellent yields. The utility of this method is demonstrated by converting the products into various bioactive fluorinated compounds, indicating its potential applications in drug discovery and biochemistry.
Article
Chemistry, Physical
Zhi-Chao Yu, Yun Lu, Jie Zhao, Jing -Jing Dai, Guo-Rong Chen, Pei-Hui Shan, Carl Redshaw, Zhu Tao, Xin Xiao
Summary: The binding interaction between 4-cyanophenol (4-CY) and cucurbit[7]uril has been studied. The absorption and emission spectra obtained in aqueous solution revealed the formation of a 1:1 host-guest type complex. By introducing [ZnCl4]2- and Ca2+ as structural inducers, a single crystal structure was obtained, showing weak interactions between 4-CY and Q[7] or [ZnCl4]2-. The supramolecular framework based on Q[7] exhibited a Chinese knot-like structure.
JOURNAL OF MOLECULAR STRUCTURE
(2023)
Article
Nanoscience & Nanotechnology
Jintao Huang, Yiwei Liu, Jiahui Lin, Jingtao Su, Carl Redshaw, Xing Feng, Yonggang Min
Summary: Novel phase change material (PCM) composite fiber films have been produced with temperature-dependent fluorescence change and stability, which can be used for applications in solar energy conversion and storage, high-temperature warning, and anti-counterfeiting.
ADVANCED COMPOSITES AND HYBRID MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Ming-Mei Zhou, Jiao He, Hui-Min Pan, Qing Zeng, Hang Lin, Ke-Qing Zhao, Ping Hu, Bi-Qin Wang, Bertrand Donnio
Summary: This study describes a efficient transition-metal-free arene-fluorine nucleophilic substitution reaction for the straightforward synthesis of several Fluorinated Polycyclic Aromatic Hydrocarbons, and reports the investigation of their liquid crystalline and optical properties.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Chemistry, Physical
Jing-Yi Cao, Ze-Dong Yu, Guang Yang, Xue-Can Wang, Lu Jiang, Xi Wang, Wen-Xuan Zhao, Shu-Hai Chen, Carl Redshaw, Chuan-Zeng Wang, Takehiko Yamato
Summary: In recent years, fluorescence sensors have been widely used in explosive detection due to their portability and high efficiency. In this study, two K-region tetrasubstituted deep-blue pyrene-based luminogens were designed and synthesized, and their optical properties were investigated by experimental and density functional theory (DFT) methods. The research results establish a low-cost and simple strategy for the detection of trace nitroaniline.
JOURNAL OF MOLECULAR STRUCTURE
(2023)
Article
Chemistry, Organic
Xu Zhou, Xiaohui Wang, Tian-Yu Zhang, Lingyi Shen, Xian-Jiong Yang, Qi-Long Zhang, Hong Xu, Carl Redshaw, Xing Feng
Summary: Anions are important for the balance and regulation of the environment and human health, but excess anions can cause ecological and environmental problems. This study synthesized water-soluble pyrene-based cationic fluorophores that exhibit high sensitivity for detecting and removing the anions BF4-, PF6-, and ClO4- in aqueous solutions. These fluorescent probes show turn-on emission characteristics even at low concentrations of anions, and also act as efficient precipitating agents. This work opens up new possibilities for using pyrene-based fluorophores as turn-on fluorescence probes for anion detection and as effective precipitating agents in environmental settings.
JOURNAL OF ORGANIC CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Hua-Long Li, Jing-Yi Cao, Ze-Dong Yu, Guang Yang, Zeng-Min Xue, Chuan-Zeng Wang, Wen-Xuan Zhao, Yi Zhao, Carl Redshaw, Takehiko Yamato
Summary: In this study, two pyrene-based luminogens with reasonable photoluminescence efficiency and blue emission were synthesized and characterized. They showed a sensitive response towards electron deficient nitroaromatics, especially nitroaniline, based on a photo-induced electron transfer mechanism. The detection limit for p-nitroaniline was as low as 8.58 x 10(-9) M, with a fluorescence quenching efficiency of up to 99.5%. These results provided a low-cost and simple strategy for trace nitroaniline sensing.
MATERIALS CHEMISTRY FRONTIERS
(2023)
Article
Chemistry, Physical
Wei Zhang, Xingmei Guo, Cong Li, Jiang-Yan Xue, Wan-Ying Xu, Zheng Niu, Hongwei Gu, Carl Redshaw, Jian-Ping Lang
Summary: An efficient bifunctional electrocatalyst, Co-CNHSCs, consisting of ultralong N, S-doped carbon nano-hollow-sphere chains and encapsulated Co nanoparticles, is developed with superior catalytic activities for ORR and OER in alkaline media. The optimized catalyst Co-CNHSC-3 exhibits outstanding electrocatalytic abilities, including a high specific capacity of 1023.6 mAh g(Zn)(-1) and excellent reversibility after 80 hours at 10 mA cm(-2) in a Zn-air battery system.
Article
Polymer Science
Xiao-Ping Xiong, Qian Yang, Ruo-Jun Wang, Ling-Yi Zeng, Wen-Hao Yu, Hong-Mei Chen, Hai-Liang Ni, Chun Feng, Ke-Qing Zhao, Ping Hu
Summary: Ionic discotic liquid crystalline polymers are versatile multifunctional polymers that exhibit electron and ion transport, luminescence, and thermal and mechanical responsiveness. In this study, IDLCPs with varying content ratios of cyclooctene and ionic monomer were successfully synthesized. The polymers displayed a hexagonal columnar mesophase and emitted yellow light photoluminescence. One of the copolymers exhibited excellent shape memory properties and ionic conductivity.
