Article
Chemistry, Multidisciplinary
Rupam Sahoo, Supriya Mondal, Santanu Chand, Arun K. K. Manna, Madhab C. C. Das
Summary: The sensing and monitoring of toxic oxo-anion contaminants in water are important to biological and environmental systems. A hydro-stable SIFSIX metal-organic framework, SiF6@MOF-1, with exchangeable SiF62- anion in its pore is designed and synthesized for selective detection of toxic Cr2O72- oxo-anion in an aqueous medium. The mechanism behind the selective detection is revealed through single-crystal-to-single crystal fashion and density functional theory calculations.
Article
Chemistry, Multidisciplinary
Meng Liang, Siwen Hu, Ningning Zhou, Zhongyi Liu, Qiao Chen, Xinyu Chen, Xingliang Liu, Cheng-Peng Li, Jingjun Hao, Pengchong Xue
Summary: A nonplanar phenothiazine derivative with three cyano moieties (PTTCN) was synthesized for absorptive separation of benzene and cyclohexane. PTTCN can form two different crystals with different fluorescence colors. The ax form selectively adsorbs benzene, but with a low purity of 79.6%. The eq form forms a hydrogen-bonded framework (X-HOF-4) with S-type solvent channels, selectively reabsorbs benzene, and the purity of benzene can reach approximately 96.5%.
Article
Chemistry, Multidisciplinary
Lulu Zhang, Zuofang Feng, Hongli Zhang, Yu Zhang, Gang Zou, Chuang Zhang, Yilong Lei
Summary: Using hydrolyzable brominated pyromellitic dianhydride as an electron acceptor, stable binary organic CT microcrystals with dominant intermolecular CT interactions were achieved. By altering the electron-donating abilities of pi-electron compounds, the resulting single crystalline CT assemblies exhibited customizable fluorescence emissions. Additionally, implanting a pi-electron donor into the electron acceptor enhanced red and NIR emissions of ternary alloyed assemblies through efficient energy transfer and structural complementarity.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Crystallography
Sushobhan Ghosh, Sudip Sarkar, Satadal Paul, Suranjan Shil, Sudip Mohapatra, Achintesh Narayan Biswas, Gobinda Chandra De
Summary: This study demonstrates the construction of a charge transfer (CT) organic material with important electrical properties, where the charge transfer state is generated via delocalization through H-bonding interaction pathway. The reaction of simple organic molecule pyromellitic acid with orthophenylene diamine gives a colorless cocrystal 1', which undergoes a rare transition to an orange charge transfer state 1 in methanol water media over several days. The charge transfer state 1 shows semiconducting and fluorescent properties, with X-ray diffraction analysis revealing the formation of a charge separated extended H-bonded network responsible for the delocalization of charge in the system. This is the first example of constructing a donor-acceptor-based charge transfer material by tuning the H-bond distance of a colorless cocrystalline state with non-chalcogen and non-halogenated molecules.
CRYSTAL RESEARCH AND TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Jinwen Wang, Zheng Ren, Jing Pan, Xiaofeng Wu, Jiansheng Jie, Xiaohong Zhang, Xiujuan Zhang
Summary: For the first time, a method of anchored crystal-seed epitaxial growth is developed for wafer-scale growth of 2D organic semiconductor single crystals. The crystal seed is firmly anchored on the liquid surface, ensuring steady epitaxial growth. This approach effectively eliminates substrate defects and enhances the 2D growth of organic crystals, providing a new avenue for high-performance organic electronics.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Meng Cai, Yiting Wang, Luyao Wan, Hang Ping, Wenxuan Wang, Weimin Wang, Hao Wang, Zhaoyong Zou, Zhengyi Fu
Summary: Shark enameloid has mechanical properties comparable to human enamel and its fast growth rate provides inspiration for materials fabrication techniques. However, the factors that facilitate the fast biomineralization of enameloid are unclear.
MATERIALS CHEMISTRY FRONTIERS
(2023)
Article
Chemistry, Physical
Lei Shao, Fanbao Meng, Junyi Chen, Yu Fu
Summary: Well-defined superparticles consisting of highly aligned MOF-74 nanoneedles were successfully prepared through epitaxial MOF-to-MOF transformation. The quasi-periodic alignment of the nanoneedles endowed the superparticles with distinct optical properties, demonstrating great potential applications as anti-counterfeiting materials.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Multidisciplinary
Qiang Lv, Xue-Dong Wang, Yue Yu, Chao-Fei Xu, Yan-Jun Yu, Xing-Yu Xia, Min Zheng, Liang-Sheng Liao
Summary: This study reports the synthesis of two-dimensional organic lateral heterostructures (2D OLHs) using a combination of liquid-phase growth and vapor-phase growth methods. The researchers successfully controlled the nucleation, growth, and orientation of two distinct components and demonstrated the significance of this synthetic strategy.
Article
Chemistry, Multidisciplinary
Jinhui Chen, Jinwen Wang, Shuai Chen, Jing Pan, Ruofei Jia, Chaoqiang Wang, Xiaofeng Wu, Jiansheng Jie, Xiujuan Zhang
Summary: Monolayer organic crystals offer a unique opportunity for studying the charge transport of organic semiconductors due to their 2D nature. However, large-scale growth of these crystals is challenging. This study proposes a self-limited epitaxial growth strategy to achieve large-area patterned growth of monolayer organic crystals. By confining molecular nucleation and crystallization in wetting patterns, single nuclei are formed, promoting the assembly of organic molecules. This approach has enabled the centimeter-sized patterned growth of mixed monolayer organic crystals, with potential applications in high-performance optoelectronic devices.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Soo Ho Choi, Hyung-Jin Kim, Bumsub Song, Yong In Kim, Gyeongtak Han, Huong Thi Thanh Nguyen, Hayoung Ko, Stephen Boandoh, Ji Hoon Choi, Chang Seok Oh, Hyun Je Cho, Jeong Won Jin, Yo Seob Won, Byung Hoon Lee, Seok Joon Yun, Bong Gyu Shin, Hu Young Jeong, Young-Min Kim, Young-Kyu Han, Young Hee Lee, Soo Min Kim, Ki Kang Kim
Summary: This study presents a method for growing transition metal dichalcogenide single-crystal monolayers on a centimeter scale using a gold surface as a growth template, providing a new avenue for growing diatomic van der Waals heterostructures on a wafer scale.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Sarah Guerin, Sanaz Khorasani, Matthew Gleeson, Joseph O'Donnell, Rana Sanii, Reabetswe Zwane, Anthony M. Reilly, Christophe Silien, Syed A. M. Tofail, Ning Liu, Michael Zaworotko, Damien Thompson
Summary: Cocrystallization of molecular compounds can enhance the physicochemical properties of functional materials, as demonstrated by the electromechanical properties improved by amino acid cocrystals. The piezoelectricity of these cocrystals is characterized using advanced techniques, showing potential applications in ambient-powered devices.
CRYSTAL GROWTH & DESIGN
(2021)
Article
Chemistry, Multidisciplinary
Ke Pei, Shiyang Ji, Mei Zhao, Chunlei Li, Peng Luo, Lang Jiang, Yongsheng Zhao, Tianyou Zhai
Summary: 2D emissive crystals, specifically metal-organic complex crystals such as Ge-TCNQ, have shown great potential for applications in high-performance optical waveguides due to their strong charge-transfer interactions and enhanced optical absorption. The ultrathin Ge-TCNQ crystals synthesized using the in-air sublimation method exhibit a high exciton binding energy and decent photoluminescence efficiency. Spectroscopic analysis of the energy band structure of Ge-TCNQ provides insight into the physical mechanism of the luminescence processes.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Nanoscience & Nanotechnology
Jiahui Huang, Peiyi Wu
Summary: The study presents a unique method of controlled 3D assembly of lanthanide metal-organic frameworks using nanomaterials and 3D printing technologies. By immersing 3D-printed constructs in a lanthanide ions solution, rapid in situ growth of the frameworks can occur, resulting in macroscopic assemblies with tunable fluorescence properties. This approach, with sub-millimeter resolution and high shape fidelity, shows promise for fabricating bespoke multiscale functional materials architectures.
NANO-MICRO LETTERS
(2021)
Article
Chemistry, Multidisciplinary
Ying Wang, Shuang-Shuang Gong, Yue Liu, Lin Cheng, Shuang-Shuang Li, Ying Zhang, Yukun Cui, Chenlu Liang, Li Tang, Peng Ren, Yu Fang, Gregory S. Day
Summary: This study successfully transformed a three-dimensional network into a two-dimensional network in an irreversible single crystal-single crystal process, resulting in the first luminescent probe for S2- based on a triazole ligand.
Article
Materials Science, Multidisciplinary
Fatemeh Amir Aslanzadeh Mamaghani, Amin Salem, Shiva Salem
Summary: Low silica-based zeolites were prepared from Ca-bentonite via fusion technique, with different structures and performances achieved by adding different aluminum resources. The hydroxysodalite obtained in the presence of sodium aluminate exhibited a superior performance due to its larger surface area and more favorable pore structure.
Article
Engineering, Environmental
Hongyang Zhang, Yingjie Sun, Zhao Chen, Weigao Wang, Qiwei Wang, Shuming Chen, Yuqing Xu, Wai-Yeung Wong
Summary: Solution processing of OLEDs is an attractive approach due to its low cost and accessibility to a variety of materials. This study focuses on the fabrication of high-performance deep red and NIR OLEDs using evaporation and solution processing methods. The devices achieved high maximum external quantum efficiencies and the effects of functional substituents and p-pi conjugation on the optoelectronic properties were investigated. This research provides new insights into developing efficient OLEDs based on Ir(III) complexes.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Yalei Wang, Jun Song, Wai-Yeung Wong
Summary: Researchers report an alternately stacked MOF/MX heterostructure with a 2D sandwich-like structure that exhibits abundant active sites, improved electrical conductivity, and exceptional structural stability. The study reveals a reversible intercalation mechanism of zinc ions and high electrical conductivity in the 2D heterostructure. Electrochemical tests confirm excellent rate performance and long-term cycling stability.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Materials Science, Multidisciplinary
Jiaxiang Liu, Baowen Wang, Zhiming Zhang, Jiamiao Yu, Xingqiang Lue, Guorui Fu, Wentao Li, Wai-Yeung Wong
Summary: Using the designed chiral emitter [Sm(tta)(3)(d-phen)], the first example of a chiral organo-lanthanide(III) complex-based CP-WOLED with both attractive white-light efficiencies (η(Max)(EQE) = 1.55% and η(Max)(CE) = 1.61 cd·A(-1)) and high dissymmetry factor (|g(EL)|(Max) = 0.011) is reported.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Chemistry, Inorganic & Nuclear
Yun Ma, Diankun Zhang, Wen Lv, Qiang Zhao, Wai-Yeung Wong
Summary: Fluorescence microscopy imaging is essential for visualizing morphological details in tissue with subcellular resolution. Heavy-metal complex based probes, especially iridium(III) solvato complexes, offer unique advantages for live cell imaging due to their excellent photophysical properties. In this study, seven water soluble cationic iridium(III) complexes were designed and synthesized for live cell imaging, with tunable emission colors from green to red. The use of these complexes enables multicolor phosphorescent imaging and various advanced imaging techniques like two-photon excited imaging and fluorescence lifetime imaging microscopy.
JOURNAL OF ORGANOMETALLIC CHEMISTRY
(2023)
Meeting Abstract
Infectious Diseases
Wai Ying Katherine Wong, Dennis Mlangeni
JAC-ANTIMICROBIAL RESISTANCE
(2023)
Article
Optics
Minting Ouyang, Runda Guo, He Jiang, Lei Wang, Wai-Yeung Wong
Summary: Two new emitters based on anthracene core have been designed and synthesized for blue and deep blue OLEDs. The hot exciton and hybrid local and charge transfer properties of these molecules contribute to their high exciton utilization efficiencies. The CIE coordinate of CNPhAnPy approaches the NTSC standard index for pure blue emission.
JOURNAL OF LUMINESCENCE
(2023)
Article
Chemistry, Organic
Biquan Xiong, Lulu Si, Longzhi Zhu, Yu Liu, Weifeng Xu, Ke-Wen Tang, Shuang-Feng Yin, Peng-Cheng Qian, Wai-Yeung Wong
Summary: A copper-catalyzed aerobic oxidative/decarboxylative phosphorylation of aryl acrylic acids with P(III)-nucleophiles via the Michaelis-Arbuzov rearrangement is reported. The reaction can be carried out effectively without the use of a ligand and a base. Various aryl acrylic acids and P(III)-nucleophiles are compatible in this transformation, providing β-keto-organophosphorus compounds with good to excellent yields. The possible mechanism and kinetic studies show that this transformation may proceed through second-order chemical kinetics and involves a radical process.
JOURNAL OF ORGANIC CHEMISTRY
(2023)
Article
Chemistry, Inorganic & Nuclear
Qiwei Wang, Lu Jiang, Wai-Yeung Wong
Summary: 2,1,3-Benzothiadiazole (BT) and its derivatives play a crucial role in the development of photofunctional compounds and organic optoelectronic devices. The construction of molecules with a BT core can enhance the electronic properties of organic materials. In this study, novel organometallic acetylide polymers bridged by bis(fluorenyl)-benzothiadiazole were synthesized and their photophysical, thermal, and electrochemical properties were investigated.
JOURNAL OF ORGANOMETALLIC CHEMISTRY
(2023)
Article
Materials Science, Multidisciplinary
Zhenjia Huang, Gary Chi-Pong Tsui, Ka-Wai Yeung, Chun Li, Chak-Yin Tang, Mo Yang, Miao Zhang, Wai-Yeung Wong
Summary: 4D printed photo-triggered liquid crystal elastomers (LCEs) microactuators by direct laser writing via two-photon polymerization (DLW-TPP) have gained attention for their manipulation flexibility and reversible and rapid actuation capabilities. However, the lack of room-temperature printable liquid crystal (LC) photoresists has hindered their development. In this study, we developed new light-responsive LC photoresists by incorporating novel conjugated polymers (CPs) as photothermal agents for DLW-TPP technology. The CPs exhibited a remarkable photothermal effect and solved aggregation problems typically seen with inorganic nanoparticles in photoresists.
MATERIALS & DESIGN
(2023)
Article
Chemistry, Multidisciplinary
Govardhana Babu Bodedla, Muhammad Imran, Jianzhang Zhao, Xunjin Zhu, Wai-Yeung Wong
Summary: In this study, TPE-ZnPF was successfully synthesized and characterized by single-crystal X-ray diffraction. TPE-ZnPF aggregates exhibit long-lived photoexcited states, and enhance emission intensity through suppression of non-radiative decay channels. Moreover, TPE-ZnPF aggregates show more efficient light-harvesting ability, well-defined nanosphere morphology, and more efficient photoinduced charge separation compared to Ph-ZnPF aggregates. As a result, TPE-ZnPF aggregates demonstrate an excellent photocatalytic hydrogen evolution rate of 56.20 mmol g(-1) h(-1), which is 94-fold higher than that of Ph-ZnPF aggregates without TPE groups.
Article
Chemistry, Organic
Wenli Shang, Longzhi Zhu, Zikang Li, Weifeng Xu, Biquan Xiong, Yu Liu, Ke-Wen Tang, Peng-Cheng Qian, Shuang-Feng Yin, Wai-Yeung Wong
Summary: A simple and efficient method for the ruthenium-catalyzed 1,6-hydroalkylation of para-quinone methides with ketones via in situ activation of C-(sp(3))-H bonds has been disclosed. This method demonstrates good substrate tolerance and moderate to good yields of the desired 1,6-hydroalkylation products.
JOURNAL OF ORGANIC CHEMISTRY
(2023)
Article
Chemistry, Inorganic & Nuclear
Rashid Ilmi, Xiaofang Li, Nawal K. Al Rasbi, Liang Zhou, Wai-Yeung Wong, Paul R. Raithby, Muhammad S. Khan
Summary: Two new organo-europium complexes were synthesized and characterized, and they were used to fabricate red organic light emitting diodes. Exceptional device performance was achieved through device engineering optimization.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Inorganic & Nuclear
Rashid Ilmi, Xiaofang Li, Nawal K. Al Rasbi, Liang Zhou, Wai-Yeung Wong, Paul R. Raithby, Muhammad S. Khan
Summary: Two new organo-europium complexes have been successfully synthesized and characterized. These complexes exhibit strong red emissions in the solid state with high photoluminescence quantum yields. They were used as dopants in the emitting layer of red organic light emitting diodes, resulting in exceptional overall performance through device engineering.
DALTON TRANSACTIONS
(2023)
Review
Chemistry, Physical
Shujie Liang, Hong Deng, Zhi Zhou, Wai-Yeung Wong
Summary: This article summarizes important synthesis strategies of Graphdiyne (GDY) and GDY-based materials, elaborates on modifications to regulate the structure and properties of GDY, and highlights recent achievements in energy and environmental applications in photocatalysis. Furthermore, the challenges and potential developments of GDY in catalytic research are discussed.
Review
Chemistry, Multidisciplinary
Leon Li-Min Zhang, Wai-Yeung Wong
Summary: This review summarizes the progress and potential applications of atomically precise CuNCs, highlighting their attractive properties and versatility in different fields.
