Article
Chemistry, Multidisciplinary
Takahiro Ami, Kouki Oka, Keiho Tsuchiya, Norimitsu Tohnai
Summary: Porous organic salts (POSs) are porous organic materials formed by self-assembly of aromatic sulfonic acids and amines through hydrogen bonding. They have high solubility and recyclability. By introducing substituents, the void structure and environment of POSs can be controlled, significantly affecting their gas adsorption behavior.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Review
Chemistry, Multidisciplinary
Thien S. Nguyen, Nesibe A. Dogan, Haeseong Lim, Cafer T. Yavuz
Summary: The development of porous solid materials with tunable amine content is necessary for efficient CO2 capture, and unifying both sorbents in one system can address regeneration issues.
ACCOUNTS OF CHEMICAL RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Tadashi Hyodo, Masahide Tominaga, Kentaro Yamaguchi
Summary: The adamantane-bearing macrocycle exhibited permanent intrinsic porosity and adsorbed small organic compounds in a single-crystal-to-single-crystal manner. Guest uptake by porous crystals led to the structural transformation of the supramolecular organic framework, resulting in changes in the shape and size of one-dimensional pores.
Article
Chemistry, Multidisciplinary
Yao-Ting Wang, Corie McHale, Xiqu Wang, Chung-Kai Chang, Yu-Chun Chuang, Watchareeya Kaveevivitchai, Ognjen S. Miljanic, Teng-Hao Chen
Summary: The porous molecular crystal (PMC) assembled from macrocyclic cyclotetrabenzoin acetate is an efficient adsorbent for CO2 separations, offering high affinity and stability for CO2 capture and allowing for pressure swing adsorption processes. With kinetic selectivity, it achieves high-purity separation of N-2 and CH4.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Engineering, Chemical
Jianfei Xiao, Xiaofang Yuan, Tian C. Zhang, Like Ouyang, Shaojun Yuan
Summary: In-situ N-doped porous carbon synthesized by a solvent-free melt polycondensation assisted by organic potassium salts showed excellent CO2 adsorption performance and recyclability.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Chemistry, Physical
Jinghu Chen, Lingchang Jiang, Wenting Wang, Zhangfeng Shen, Shaomin Liu, Xi Li, Yangang Wang
Summary: This study demonstrates a facile approach to synthesize highly porous carbon materials with exceptional CO2 adsorption capacity and CO2/N2 selectivity, offering an efficient strategy for mitigating greenhouse effect.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Physical
Hongmin Cui, Jianguo Xu, Jinsong Shi, Shengyong You, Chao Zhang, Nanfu Yan, Yuewei Liu, Guihua Chen
Summary: In this study, porous carbons with large surface area were synthesized using four different potassium salts as activators, achieving a specific surface area of up to 2403 m(2)/g. CO2 adsorption tests revealed that ultramicropores and nitrogen doping play crucial roles in influencing the CO2 uptake performance under different pressure conditions.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Energy & Fuels
Jingpeng Zhang, Zhengwen Li, Zhihe Zhang, Kai Feng, Binhang Yan
Summary: The thermocatalytic transformations of captured CO2 into CO, CH3OH, or CH4 show potential for reducing CO2 emissions, but currently rely heavily on fossil fuels for energy input. More renewable energy sources are needed to achieve net CO2 reduction.
Article
Chemistry, Applied
Jikai Wen, Sineng Chen, Yijiang Liu, Hongbiao Chen, Bei Liu, Mei Yang, Huaming Li
Summary: The cycloaddition of CO2 to epoxides is an important CO2-fixation reaction, and this study introduces a new porous organic polymer, PBPI-IL2, which exhibits high catalytic activity for this reaction. PBPI-IL2 shows high conversion and selectivity in the cycloaddition of CO2 to epoxides, and it can be recycled and reused.
MICROPOROUS AND MESOPOROUS MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Yu-Huang Zou, Yuan-Biao Huang, Duan-Hui Si, Qi Yin, Qiu-Jin Wu, Zixiang Weng, Rong Cao
Summary: This study presents a new strategy for fabricating porous MOF liquids with permanent porosity and fluidity, which have significantly increased CO2 adsorption capacity and can be used for synthesizing cyclic carbonates.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Multidisciplinary
Yangyang Xin, Dechao Wang, Dongdong Yao, Hailong Ning, Xiaoqian Li, Xiaoqian Ju, Yichi Zhang, Zhiyuan Yang, Yahong Xu, Yaping Zheng
Summary: A new strategy for synthesizing low-viscosity UiO-66-PLs was proposed based on post-synthetic modification of MOFs and the like-dissolves-like principle. The synthesized UiO-66-PLs exhibit superior fluidity at room temperature and accessible porosity.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Jinqiao Dong, Yutong Pan, Kuiwei Yang, Yi Di Yuan, Vanessa Wee, Shidang Xu, Yuxiang Wang, Jianwen Jiang, Bin Liu, Dan Zhao
Summary: Researchers have developed aggregation-induced emission (ME)-active POCs that can respond to environmental changes for bioimaging of living cells, demonstrating their potential for further biological applications.
Article
Chemistry, Multidisciplinary
Jinyi Wu, Shasha Ma, Jiawei Cui, Zujin Yang, Jianyong Zhang
Summary: As CO2 emissions increase and the global climate deteriorates, converting CO2 into valuable chemicals has become a topic of wide concern. In this study, two porous organic polymers functionalized with covalent triazine and triazole N-heterocycles were synthesized and used as catalysts for high-value conversion reactions. The results showed that the catalyst exhibited excellent catalytic activity, stability, and durability.
Article
Chemistry, Applied
Faxu Lin, Yi Liu, Zhibo Zhang, Yang Feng, Zhen-Qiang Yu, Lei Wang
Summary: Katritzky salts, synthesized from condensation between pyrylium salts and amines, are bright solid-state fluorescent emitters that exhibit remarkable emission enhancement in DMSO-H2O mixture, similar to classical AIEgens. The emission enhancement is attributed to changes in solvent mixture polarity at low volume fraction of water, and aggregate formation at high volume fraction of water. The high emission quantum yield in solid state is due to suppressed intermolecular pi-pi stacking interactions between fluorophores and propeller-shaped ionic luminogens also show mechanochromic luminescence behavior.
Article
Energy & Fuels
Jiamei Huang, Jiali Bai, Muslum Demir, Xin Hu, Zhuohan Jiang, Linlin Wang
Summary: Porous carbons with abundant availability and tunable physical properties have attracted tremendous interest for CO2 capture application. However, their insufficient CO2 utilization performance due to the poor active sites on their surface is a drawback. In this study, we report the fabrication of N-rich porous carbon derived from urea-formaldehyde resin via a two-step synthetic route involving physical carbonization and KOH activating. The optimized sample with 9.87 wt% N exhibits notable CO2 uptake capacities and high selectivity efficiency, attributed to advanced textural properties and incorporation of nitrogen into carbon surfaces.
Article
Chemistry, Multidisciplinary
Xueqian Zhao, Parvej Alam, Jianyu Zhang, Shiyun Lin, Qian Peng, Jun Zhang, Guodong Liang, Sijie Chen, Jing Zhang, Herman H. Y. Sung, Jacky W. Y. Lam, Ian D. Williams, Xinggui Gu, Zheng Zhao, Ben Zhong Tang
Summary: Materials exhibiting metallophilic interactions have unique photophysical and stimuli-responsive behavior. This study reports a new phosphorescent gold(I) complex that displays mechanochromic and thermochromic luminescence properties in the crystalline state.
Article
Chemistry, Multidisciplinary
Xueqian Zhao, Junyi Gong, Parvej Alam, Chao Ma, Yanpei Wang, Jing Guo, Zebin Zeng, Zikai He, Herman H. Y. Sung, Ian D. Williams, Kam Sing Wong, Sijie Chen, Jacky W. Y. Lam, Zheng Zhao, Ben Zhong Tang
Summary: Sable organic radicals hold great promises for various applications such as information storage, molecular magnetism, electronic devices, and biological probes. However, most organic radicals synthesized so far are non- or weakly emissive and easily degrade upon photoexcitation. This study presents a photoactivation approach to produce a stable and luminescent radical from tris(4-chlorophenyl)phosphine, which emits red light in the crystal state. The mechanism study reveals that breaking of molecular symmetry in the crystal leads to changes in molecular conformation, redox properties, and molecular packing, which facilitate the generation and stabilization of the radical. This design strategy provides a straightforward method to develop stable organic luminescent radicals and paves the way for photoinduced luminescent radical materials.
Article
Chemistry, Multidisciplinary
Parvej Alam, Tsz Shing Cheung, Nelson L. C. Leung, Jianyu Zhang, Jing Guo, Lili Du, Ryan T. K. Kwok, Jacky W. Y. Lam, Zebing Zeng, David Lee Phillips, Herman H. Y. Sung, Ian D. Williams, Ben Zhong Tang
Summary: Long-persistent luminescence (LPL), also known as afterglow, is a phenomenon where a material continues to emit light after the excitation source is turned off. It has attracted much interest due to its fundamental nature and potential in developing new functional materials. Most current LPL materials are complex inorganic systems that require harsh synthetic procedures and rare-earth metals. However, metal-free organic long-persistent luminescence (OLPL) has gained interest as it overcomes some of the disadvantages of inorganic systems. The most successful method to generate OLPL systems is through binary donor-acceptor exciplex systems, but the ratios of the binary systems can complicate reproducibility and large-scale production. Therefore, simpler OLPL systems are needed for easier design and production.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Multidisciplinary
Ying Yu, Hao Xing, Zhicong Zhou, Junkai Liu, Herman H. -Y. Sung, Ian D. Williams, Jonathan E. Halpert, Zheng Zhao, Ben Zhong Tang
Summary: The study synthesizes three red luminogens with subtle structural variation and investigates the influence of molecular interactions on their luminescent behavior in solution and aggregate states. Strong pi-pi and D-A interactions cause a redshift in emission, while weak interactions enhance the quantum yield. This work provides insights into the complicated influence of various molecular interactions on luminescent behavior.
SCIENCE CHINA-CHEMISTRY
(2022)
Article
Chemistry, Inorganic & Nuclear
Wei Wei, Herman H. Y. Sung, Ian D. Williams, Guochen Jia
Summary: The reactivity of low-valent alkyl-substituted metallacyclobutadienes towards electron-rich alkynes was studied. It was found that nucleophilic attack on the ReC(R) carbon of the starting metallacyclobutadienes can lead to the formation of new vinyl-substituted complexes. Additionally, the reactions also produce metallacyclobutadiene complexes with vinyl substituents.
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Inorganic & Nuclear
Zhiyu Wang, Zixuan Zhang, Herman H. Y. Sung, Ian D. Williams, Haipeng Lu
Summary: Chiral metal-halide hybrids have versatile chemical and structural properties, and understanding the structure-optical activity relationship is crucial for their applications.
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Inorganic & Nuclear
Yanyan Li, Zhicong Zhou, Zengshan Xing, Kam Sing Wong, Herman H. Y. Sung, Ian D. Williams, Jonathan E. Halpert
Summary: Researchers have reported a series of lead-free hybrid organic-inorganic copper halides with tunable structures and emission spectra, exhibiting excellent optical properties and high photoluminescence quantum yield.
INORGANIC CHEMISTRY
(2022)
Article
Plant Sciences
Chuanhai Wu, Jianwei Tang, Jessie James Limlingan Malit, Ruojun Wang, Herman H-Y Sung, Ian D. Williams, Pei-Yuan Qian
Summary: Bacteria in marine biofilms are a valuable source of natural products. In this study, the metabolic profile of a Bacillus sp. B19-2 derived from a marine biofilm was investigated to discover novel secondary metabolites. A new family of compounds called bathiapeptides was identified and their structures, as well as cytotoxicity against different cell lines, were elucidated. An iterative biosynthesis logic for bathiapeptides was proposed based on the chemical structures and gene cluster analysis.
JOURNAL OF NATURAL PRODUCTS
(2022)
Article
Chemistry, Multidisciplinary
Hanchen Shen, Feiyi Sun, Xinyan Zhu, Jianyu Zhang, Xinwen Ou, Jianquan Zhang, Changhuo Xu, Herman H. Y. Sung, Ian D. Williams, Sijie Chen, Ryan T. K. Kwok, Jacky W. Y. Lam, Jianwei Sun, Fan Zhang, Ben Zhong Tang
Summary: This article introduces a new NIR-II fluorescence imaging technique, which utilizes the AIE strategy to design a NIR-II dye with high QY. The dye is used for CL and PL resonance energy transfer, achieving high-quality imaging in animal experiments.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Multidisciplinary Sciences
Jianyu Zhang, Parvej Alam, Siwei Zhang, Hanchen Shen, Lianrui Hu, Herman H. Y. Sung, Ian D. Williams, Jianwei Sun, Jacky W. Y. Lam, Haoke Zhang, Ben Zhong Tang
Summary: Researchers have designed clusteroluminogens that exhibit multiple emissions and white-light emission in the crystalline state by manipulating through-space interactions. The intensity ratio of these emissions can be easily controlled by changing the halide atom and excitation wavelength.
NATURE COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Zheng Zheng, Tianyu Yang, Dongyu Li, Hui Cao, Junyi Gong, Haixiang Liu, Chengcheng Zhou, Lijie Liu, Peifa Wei, Xinggui Gu, Ping Lu, Jun Qian, Ben Zhong Tang
Summary: The optical/electronic properties of organic luminescent materials can be regulated by modifying their molecular structure, which is challenging and time-consuming. This study proposes a strategy of synergistic engineering at both molecular and aggregate levels to manipulate the optical/electronic properties of a luminogen, ACIK, in the solid state. Different polymorphic states of ACIK exhibit a wide emission range from yellow to near-infrared and possess various functionalities, such as color-tuned fluorescence, optical waveguide property, and specific targeting capability. This research provides insights for developing advanced optical/electronic materials based on a single chromophore for practical applications.
Article
Chemistry, Multidisciplinary
Zheng Zheng, Yuchen Yang, Pingping Wang, Xuexin Gou, Junyi Gong, Xiaoqian Wu, Zhiwei Bao, Lijie Liu, Jing Zhang, Hang Zou, Lei Zheng, Ben Zhong Tang
Summary: The polarity of lipid droplets (LDs) is important in pathological processes associated with abnormal lipid metabolism. Monitoring LDs polarity in cells and tissues is crucial in biomedical research and clinical diagnosis. However, developing suitable probes for deep tissue imaging of LDs is challenging. In this study, a push-pull fluorescent luminogen with aggregation-induced emission and solvatochromism is developed, which successfully stains LDs in various mouse tissues and maps their polarity distribution. The excellent properties of this probe make it a promising candidate for investigating LDs-associated physiological and pathological processes in live biological samples.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Medicinal
Aifang Cheng, Changdong Liu, Wenkang Ye, Duli Huang, Weiyi She, Xin Liu, Chun Po Fung, Naining Xu, Monica Ching Suen, Wei Ye, Herman Ho Yung Sung, Ian Duncan Williams, Guang Zhu, Pei -Yuan Qian
Summary: This study identified three first-in-class marine natural products, cA, cB, and cC, which selectively bind to G4C2 G4s and show remarkable bioactivities. Particularly, cA and cC can reduce cell death caused by G4C2 EHR and improve pathological features of related diseases.
JOURNAL OF MEDICINAL CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Zhaoyu Wang, Xinhui Zou, Yi Xie, Haoke Zhang, Lianrui Hu, Christopher C. S. Chan, Ruoyao Zhang, Jing Guo, Ryan T. K. Kwok, Jacky W. Y. Lam, Ian D. Williams, Zebing Zeng, Kam Sing Wong, C. David Sherrill, Ruquan Ye, Ben Zhong Tang
Summary: This study demonstrates the first example of a nonconjugated luminescent radical, which emits red luminescence in the solid state. By grafting a traditional luminescent quencher onto a polymer backbone, a non-luminescent material is transformed into a red chromophore.
MATERIALS HORIZONS
(2022)
Article
Materials Science, Multidisciplinary
Ying Yu, Hao Xing, Hojeong Park, Ruoyao Zhang, Chen Peng, Herman H-Y Sung, Ian D. Williams, Chao Ma, Kam Sing Wong, Shijie Li, Qingping Xiong, Min-Hui Li, Zheng Zhao, Ben Zhong Tang
Summary: A new deep-red AIE luminogen AlEgen was developed with high solid-state quantum yield, suitable for lipid droplet imaging and tracking with the advantage of two-photon imaging.
ACS MATERIALS LETTERS
(2022)
