Article
Chemistry, Multidisciplinary
Liping Ye, Qian Miao
Summary: New molecular scaffolds with C-, Z-, and box-shaped configurations were synthesized by combining phenazine and pyrene units with oxanorbornene. X-ray crystallography revealed that the C-shaped molecules showed two unique π-π stacking modes of phenazine depending on substituent groups, while the box-shaped molecule formed hydrogen bonds with four chloroform molecules and accommodated two more chloroform molecules in the cavity. The pair of diastereomeric C- and Z-shaped molecules exhibited similar charge transfer absorption and emission, indicating that the intramolecular charge transfer between pyrene (p-donor) and phenazine (p-acceptor) was not affected by the overall molecular geometry.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Sambasivarao Kotha, Ambareen Fatma
Summary: The design and synthesis of polycycles containing epoxy moeity ring system was achieved through the application of Grignard reaction and ring-rearrangement metathesis as key steps. Additionally, the synthesis of oxabowls was also accomplished using O-allylation and ring-rearrangement metathesis.
Article
Chemistry, Multidisciplinary
Jonathan H. Boyce, Benjamin J. Reisman, Brian O. Bachmann, John A. Porco
Summary: This study reports novel rearrangements of acylphloroglucinols mediated by formic acid to access diverse synthetic acylphloroglucinol scaffolds, with insights on the mechanism provided by Density-functional theory (DFT) analysis. Evaluation of products using multiplexed activity profiling (MAP) identified SASs that suppressed pS6 (Ser235/236) markers of mTOR and ERK signaling pathways activation. These results demonstrate the pharmacological potential of novel chemotypes through biomimetic synthesis and multiplexed activity profiling.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Multidisciplinary
Laura Frey, Orlando Oliveira, Ashish Sharma, Roman Guntermann, Soraia P. S. Fernandes, Krystal M. M. Cid-Seara, Hosanna Abbay, Henry Thornes, Joao Rocha, Markus Doeblinger, Tim Kowalczyk, Akshay Rao, Laura M. Salonen, Dana D. Medina
Summary: This study presents a three-component synthesis methodology for the formation of covalent organic frameworks (COFs) containing extended aromatics. The method allows parallel synthesis of the building blocks and COF, resulting in the formation of pyrene-fused azaacene with full conversion, long-range order, and high surface area. The approach is also successfully used to produce highly crystalline, oriented thin films of the COFs with nanostructured surfaces. The COFs exhibit blue light absorption and distinct photoluminescence profiles, with ultrafast relaxation dynamics of excited states.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Review
Polymer Science
Guoqiang Liu, Ruihao Pan, Yen Wei, Lei Tao
Summary: The Hantzsch reaction is a powerful tool for synthesizing 1,4-dihydropyridine derivatives, and has recently been introduced into polymer chemistry for developing polymers with new functions. These polymers with 1,4-DHP structures have potential applications in various fields. The future development of the Hantzsch reaction is promising for exploring new functional polymers.
MACROMOLECULAR RAPID COMMUNICATIONS
(2021)
Review
Crystallography
Weiqing She, Zhenzhen Xu, Lianjie Zhai, Junlin Zhang, Jie Huang, Weiqiang Pang, Bozhou Wang
Summary: Due to the introduction of oxygen atoms, N-oxide energetic compounds possess unique advantages in terms of oxygen balance, detonation properties, and energy density, which have attracted extensive attention from researchers worldwide. This article provides a comprehensive review of the synthetic strategies for two categories of N-oxides, azine N-oxides and azole N-oxides, and discusses the reaction mechanisms of aromatic N-oxide frameworks and their applications in creating high-energy substances. Furthermore, the energetic properties of N-oxide energetic compounds are compared and summarized.
Review
Acoustics
Ingrid V. Machado, Jhonathan R. N. dos Santos, Marcelo A. P. Januario, Arlene G. Correa
Summary: By utilizing ultrasound-assisted multicomponent reactions under heterogeneous catalysis, it is possible to efficiently synthesize biologically active organic compounds with reduced costs and energy consumption.
ULTRASONICS SONOCHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Hitomi Tsuno, Jingfeng Shen, Hiroki Komatsu, Norihito Arichi, Shinsuke Inuki, Hiroaki Ohno
Summary: A gold-catalyzed cascade cyclization of naphthalene-tethered allenynes leads to strained fused phenanthrene derivatives. The reaction involves the nucleophilic reaction of an alkyne with an activated allene to generate a vinyl cation intermediate, followed by arylation with a tethered naphthalene ring to form the 4H-cyclopenta[def]phenanthrene (CPP) scaffold. The gold-catalyzed reaction of aryl-substituted substrates on the alkyne terminus also produces dibenzofluorene derivatives alongside the CPP derivatives, depending on the reaction conditions.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Applied
Nai-Chen Hsueh, Kuan-Ting Chen, Meng-Yang Chang
Summary: A high-yielding one-pot synthesis method for the bis-sulfonyl dibenzooxabicyclo[5.5.0]dodecanes has been developed under open-vessel atmosphere conditions. This method involves a double substitution reaction between 1,3-dichloroacetone and arenesulfinic acid sodium salts, followed by C- and O-alkylation of the resulting 1,3-bis-sulfonylacetones with o-bis(bromomethyl)arenes. The formation of three carbon-carbon single bonds, two carbon-sulfur single bonds, and one carbon-oxygen single bond contributes to the success of this protocol.
ADVANCED SYNTHESIS & CATALYSIS
(2022)
Article
Chemistry, Multidisciplinary
Javier Mateos-Martin, Kais Dhbaibi, Manuel Melle-Franco, Aurelio Mateo-Alonso
Summary: This study describes the synthesis of a new set of twisted dibenzotetraazahexacenes and analyzes their optical and redox properties. The twisted structure of these compounds is confirmed through single-crystal X-ray diffraction. The effects of the substituents and twists on the properties are studied using absorption, fluorescence, electrochemical, and theoretical studies.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Review
Chemistry, Physical
Songying Qu, Hao Wu, Yun Hau Ng
Summary: Hydrogen peroxide is a crucial chemical attracting attention for energy and environmental applications. The environmentally friendly solar-driven production of hydrogen peroxide, which only requires water, oxygen, and light energy, has gained the most attention. The rational design of functional photo-responsive catalysts promotes hydrogen peroxide production in photo(electro)catalytic approaches. This review systematically summarizes strategies for these catalysts and discusses prevailing hypotheses, state-of-the-art catalysts, critical challenges, and perspectives to enhance comprehension and promote interest in sustainable hydrogen peroxide production.
ADVANCED ENERGY MATERIALS
(2023)
Review
Chemistry, Multidisciplinary
Stefan Simic, Erna Zukic, Luca Schmermund, Kurt Faber, Christoph K. Winkler, Wolfgang Kroutil
Summary: Biocatalysis, using enzymes for organic synthesis, is a powerful tool for the synthesis of active pharmaceutical ingredients (APIs). Developments in molecular biology methods have led to the rapid development of process-stable enzymes through directed evolution. Enzymes are widely employed in the synthesis of small molecule APIs, enabling more efficient and sustainable routes.
Review
Chemistry, Physical
Pengyi Lu, Jingwen Zhou, Yukun Hu, Jinwen Yin, Yunhao Wang, Jinli Yu, Yangbo Ma, Zonglong Zhu, Zhiyuan Zeng, Zhanxi Fan
Summary: Gold-based nanoalloys have garnered extensive attention for their intriguing physical/chemical properties and excellent performance in various applications, particularly in catalysis. This review provides an overview of general synthetic methods and potential catalytic applications of gold-based nanoalloys, as well as discusses the relationships between material structures/compositions and catalytic performances. Additionally, critical challenges and potential opportunities facing gold-based nanoalloys are proposed to inspire future material design for high performance applications.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Article
Thermodynamics
Muhammed Iberia Aydin, Ibrahim Dincer
Summary: This study evaluates the feasibility of renewable and nuclear-based hydrogen production methods through a life cycle impact analysis and investigates the environmental effects of using hydrogen to power fuel cell electric buses. The results show that the Cu-Cl cycle is the most environmentally friendly method of hydrogen production, and electrolysis methods also outperform conventional hydrogen production. Fuel cell electric buses utilizing hydrogen from clean energy sources have lower emissions compared to diesel buses.
Article
Chemistry, Physical
Alejandro Madrid, Elena Perez, Miguel Angel Vicente, Vicente Rives, Raquel Trujillano
Summary: Nylon/saponite nanocomposites were synthesized using a fast, efficient, low-cost, and environmentally friendly method. The method achieved significant savings in energy and reaction time while avoiding contamination.
Article
Chemistry, Multidisciplinary
Feng Ye, Wei Sun, Kangfeng Pang, Wenchao Yang, Mengjie Pu, Qichun Zhang
Summary: In this study, S, B co-doped carbon-based persulfate activators were synthesized for the first time, showing enhanced catalytic performance compared to solo S or B doping. The carbon material exhibited efficient degradation of organic pollutants under both acidic and basic conditions, which indicates its potential application in environmental remediation.
CHINESE CHEMICAL LETTERS
(2023)
Article
Chemistry, Physical
Jianfei Wu, Yuxuan Su, Ziwei Cui, Yang Yu, Jiafu Qu, Jundie Hu, Yahui Cai, Jianzhang Li, Dan Tian, Qichun Zhang
Summary: A flexible, anti-fouling, and durable nanocellulose-based membrane with high separation efficiency and ultra-high flux has been developed for the separation of stabilized oil-in-water emulsions.
Article
Chemistry, Multidisciplinary
Wenting Huang, Meizhen Qiu, Fei Yu, Jiawen Chen, Xiaojun Li, Qi Wei, Guichuan Xing, Bo Wu, Wangqiao Chen, Qichun Zhang
Summary: In this study, heteroatoms (O and S)-doped polycyclic aromatic hydrocarbons (PAHs) molecules with (beta, beta) connected furan/thiophene ring were synthesized and their optical and physiochemical properties were investigated. The singlet fission efficiency was found to be improved by 2 times when oxygen was replaced with sulfur atom, providing guidelines for the design of more efficient singlet fission materials.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Review
Chemistry, Multidisciplinary
Cheng Zhang, Xin Wang, Yang Li, Yanqiu Sun, Qichun Zhang
Summary: Organic spintronics has revolutionized the creation of highly efficient low-power circuits. Spin manipulation in organic cocrystals has emerged as a promising strategy to explore various chemicophysical properties for diverse applications. This Minireview summarizes recent advancements in spin properties in organic charge-transfer cocrystals and provides insights into the possible mechanisms behind them. It also discusses other spin phenomena in radical cocrystals and spin transport, in addition to the known spin properties in binary/ternary cocrystals. The aim is to provide a clear direction for the incorporation of spin in organic cocrystals by deepening the understanding of current achievements, challenges, and perspectives.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Review
Chemistry, Inorganic & Nuclear
Danfeng Wang, Xin Wang, Shiyuan Zhou, Peiyang Gu, Xiaolin Zhu, Chengyuan Wang, Qichun Zhang
Summary: The BODIPY chromophore is a versatile fluorophore widely used in various research fields, especially in life science and material science. It has made significant advancements in the past decades, particularly as a photosensitizer. The key to practical applications lies in structural functionalization, and the evolution of BODIPY-based materials as photosensitizers is currently underway.
COORDINATION CHEMISTRY REVIEWS
(2023)
Article
Chemistry, Physical
Cheng Zhang, Yang Li, Fei Yu, Guan Wang, Kuaibing Wang, Chunlan Ma, Xinbo Yang, Ye Zhou, Qichun Zhang
Summary: 2D ribbon-structured hydrogen-bonded organic frameworks (Nano-HOFs) embedded with transition metal nanoparticles are used as reliable memristive materials to mimic synaptic behaviors. The HOFs@Au-based memristor shows gradient electrical conductances and stable synaptic functions, making it suitable for neuromorphic computing and intelligent cognition applications.
Review
Chemistry, Multidisciplinary
Cheng Zhang, Mohan Chen, Yelong Pan, Yang Li, Kuaibing Wang, Junwei Yuan, Yanqiu Sun, Qichun Zhang
Summary: This review summarizes the recent advances and applications of carbon dot-based memristors in artificial synapses, neuromorphic computing, and human sensory perception systems. It introduces the synthetic methods and discusses the structure-property relationship and resistive switching mechanism of carbon dot-based memristors. The challenges and prospects of memristor-based artificial synapses and neuromorphic computing are presented, and promising application scenarios of carbon dot-based memristors are outlined.
Review
Chemistry, Multidisciplinary
Jianlu Sun, Yifan Xu, Yanqi Lv, Qichun Zhang, Xiaosi Zhou
Summary: Due to the limitations of traditional electrode materials in alkalimetal-ion batteries (AIBs), the development of new electrode materials is crucial. Covalent organic frameworks (COFs) are porous polymers with organic building blocks bonded through covalent bonds, offering high designability, regular channels, and stable topology. This review discusses the characteristics, challenges, reaction types, and active sites of COF electrodes, and emphasizes the importance of structure, morphology, size, and conductivity design for efficient COF electrode materials in AIBs.
Article
Chemistry, Inorganic & Nuclear
Le Wang, Gui-Zhi Guo, Meidi Wang, Heng-Yu Ruan, Ya-Pan Wu, Xue-Qian Wu, Qi-Chun Zhang, Dong-Sheng Li
Summary: This study demonstrates efficient nonenzymatic electrochemical glucose sensing using nickel-based metal-organic frameworks (Ni(II)-MOFs), achieving the fastest response time reported to date. Three different Ni(II)-MOFs with varying dimensions were synthesized, showing excellent response speed, low detection limit, and high sensitivity.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Inorganic & Nuclear
Miao-Miao Yang, Jia-Min Cao, Guang-Dong Qi, Xian-Yu Shen, Guan-Yu Yan, Ye Wang, Wen-Wen Dong, Jun Zhao, Dong-Sheng Li, Qichun Zhang
Summary: This study presents the construction of Cu2O nanoparticle/PCN-250 Z-scheme heterostructures, which exhibit improved photogenerated carrier separation efficiency and CO2 adsorption capacity, resulting in higher yields in the conversion of CO2 to alcohols.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Shen Xu, Chenchen Wang, Tianyi Song, Huiying Yao, Jie Yang, Xin Wang, Jia Zhu, Chun-Sing Lee, Qichun Zhang
Summary: This article reports a electrode material based on covalent organic polymers for sodium-ion batteries. The material exhibits ultrahigh specific capacity in half-cells, with almost no capacity drop after 650 cycles. Moreover, in the first all-COP symmetric full-cell, the material shows high specific capacity and excellent rate performance.
Editorial Material
Chemistry, Multidisciplinary
Lu-Fang Ma, Dong-Sheng Li, Guo-Ping Yang, Qichun Zhang
FRONTIERS IN CHEMISTRY
(2023)
Review
Chemistry, Physical
Hua Sun, Qichun Zhang
Summary: Recent research has improved our understanding of perylene diimides (PDIs), particularly their fluorescence and photothermal properties. The interplay between radiative and nonradiative transitions controls their emission and heat generation processes. This review explores effective integration of these processes through molecular design within the PDI framework. It comprehensively discusses strategies for manipulating PDI structures for fluorescence and photothermal applications.
Article
Electrochemistry
Jiawen Wang, Yifan Tong, Weiwei Huang, Qichun Zhang
Summary: Organic electrode materials have gained attention in sodium-metal batteries due to their rich reserves, flexibility, and environmental friendliness. However, the poor stability of organic small molecules in the electrolyte leads to decreased battery capacity and cycle life. In this study, a linear polymer p-PADA with highly-conjugated and polymerized structure is reported to enhance electrode stability, reaction kinetics, and rate performance, demonstrating the effectiveness of polymerization in improving the electrochemical properties of organic materials.
BATTERIES & SUPERCAPS
(2023)
Review
Chemistry, Physical
Usman Khan, Adeela Nairan, Junkuo Gao, Qichun Zhang
Summary: 2D nanosheets of metal-organic frameworks (MOFs) have shown great potential in electrocatalytic fields due to their atomic-level thickness, abundant active sites, and large surface area. This review summarizes the synthesis and electrocatalytic applications of 2D MOFs for hydrogen evolution reaction, oxygen evolution reaction, and overall water splitting. The focus is on the synthetic strategies and properties of these materials, highlighting their catalytic performance and unique advantages. The challenges in this field and potential solutions are also discussed.
