Article
Chemistry, Multidisciplinary
Eloy P. Gomez-Oliveira, Daniel Reinares-Fisac, Lina M. Aguirre-Diaz, Fatima Esteban-Betegon, Mercedes Pintado-Sierra, Enrique Gutierrez-Puebla, Marta Iglesias, M. Angeles Monge, Felipe Gandara
Summary: This study synthesized and characterized three new bismuth metal-organic frameworks (MOFs), and demonstrated their catalytic activity in the one-pot multicomponent Strecker reaction. Among the MOFs, BiPF-7 exhibited high stability and catalytic activity, and the interaction between catalytic substrates and metal centers was analyzed through crystallography.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Physical
Dandan Hu, Jun-Qi Zhang, Xiang Wang, Jinyu Song, Xufeng Lin, Hongjun Ren
Summary: This study presents a one-pot solvothermal method for synthesizing diverse bimetallic organic frameworks. Among them, the material [NiFe(tda)(H2O)]n with a unique morphology shows outstanding electrocatalytic performance for oxygen evolution reaction.
JOURNAL OF POWER SOURCES
(2022)
Article
Chemistry, Multidisciplinary
Vipin K. Pandey, Chandra Shekhar Tiwari, Arnab Rit
Summary: A silver salt-catalyzed aminophosphonylation and Strecker reaction were developed, and mechanistic studies revealed a radical pathway. This reaction system can effectively operate at room temperature without the need for solvents, ligands, or bases, and it can produce diverse products.
CHEMISTRY-AN ASIAN JOURNAL
(2022)
Article
Chemistry, Organic
Bao Yu, Florent Bodinier, Maximiliene Saague-Tenefo, Patrice Gerardo, Janick Ardisson, Marie-Isabelle Lannou, Geoffroy Sorin
Summary: This work describes the one-pot synthesis of alpha-amino nitrile units through the concomitant addition of alkyl (or aryl) Grignard reagents and TMS cyanide, showing a broad scope, mild conditions, and high yields of numerous alpha-amino nitriles.
EUROPEAN JOURNAL OF ORGANIC CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
T. T. Wen, L. Z. Wang
Summary: A magnetic core-shell copper-based nanocatalyst was successfully prepared and characterized using various analytical techniques. The highly efficient catalyst exhibited excellent catalytic activity and selectivity in the one-pot synthesis of diester/methyl-substituted polycyclic fused 1,5-benzodiazepines. The catalyst's easy recovery and reusability, along with its practicality, environmental friendliness, and economic attractiveness, make it a promising candidate for various applications.
MATERIALS TODAY CHEMISTRY
(2022)
Article
Chemistry, Physical
Chenghan Yang, Chunfeng Mao, Qinghua Deng, Yong Yang, Yuming Zhou, Yiwei Zhang
Summary: In this study, a novel two-dimensional (2D) covalent organic framework (COF) with fxt topology was synthesized and metallized with gold species to form a heterogeneous catalyst. The Au@COF catalyst showed high catalytic activity and good recyclability, enabling the one-pot synthesis of flavone and its derivatives. This work demonstrates the great potential of metallized COFs in organic catalysis with unique well-defined pores.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Angad B. Barkule, Yatin U. Gadkari, Simren S. Salim, Savita B. Lomte, Vikas N. Telvekar
Summary: An expeditious and highly efficient methodology for the synthesis of pyrazolopyranopyrimidine under aqueous conditions using guanidine hydrochloride as a catalyst is reported. The one-pot multicomponent synthesis from aryl/heterocyclic aldehyde, ethyl acetoacetate, barbituric acid, and hydrazine hydrate yields the final compound in moderate to excellent yield. The guanidine hydrochloride shows recyclability (up to 4 cycles), safety, low cost, and wide stability profile, making it an ideal catalyst. The current protocol offers advantages such as environmentally benign nature, shorter reaction time, high yield, simple work-up procedure, broad substrate tolerance, and absence of hazardous organic solvent.
Article
Chemistry, Physical
Congcong Chen, Weidong Zhang, He Zhu, Bo-Geng Li, Yingying Lu, Shiping Zhu
Summary: A facile one-pot electrospinning strategy was proposed for preparing Metal-Organic Framework (MOF)/polymer composite materials, which exhibited uniform MOF distribution and good mechanical properties. The composite membranes, used as separators in Li-metal batteries, demonstrated significantly improved cycling performance under harsh testing conditions. This improvement was attributed to enhanced wettability and a uniform lithium ion flux stabilized by the open metal sites of uniformly distributed MOF particles in the membrane.
Article
Chemistry, Multidisciplinary
Saba Daliran, Mostafa Khajeh, Ali Reza Oveisi, Hermenegildo Garcia, Rafael Luque
Summary: Metal-organic frameworks (MOFs) with innovative self-assembled structures show remarkable photocatalytic performance for organic transformations under visible LED light.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Article
Nanoscience & Nanotechnology
Jiamin Sun, Sara Abednatanzi, Hui Chen, Ying-Ya Liu, Karen Leus, Pascal Van der Voort
Summary: The study presents an effective bifunctional heterogeneous catalyst by encapsulating a polyoxometalate into the cages of an alkylamine-modified MIL-101, achieving a great catalytic performance for the selective oxidation-Knoevenagel one-pot reaction with 99% conversion rate.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Multidisciplinary
Sara Oudi, Ali Reza Oveisi, Saba Daliran, Mostafa Khajeh, Amarajothi Dhakshinamoorthy, Hermenegildo Garcia
Summary: Researchers designed and synthesized a porphyrin-based covalent organic framework (COF) called Porph-UOZ-COF. The COF exhibited outstanding catalytic performance under visible-light, without the need for additives or metals, and could be reused. This study demonstrates the potential of COFs as metal-free catalysts for tandem reactions.
Article
Chemistry, Physical
Jinyu Chao, Yifei Lei, Yusran Yusran, Hui Wang, Dan-Wei Zhang, Zhan-Ting Li
Summary: Due to the urgent demand for environmentally friendly synthetic methods, metal-free materials have gained increasing prominence in various photocatalytic organic transformations. This study reports the application of a supramolecular organic framework as a heterogeneous photocatalyst, which exhibits exceptional light-absorbing properties and high recyclability.
JOURNAL OF CATALYSIS
(2023)
Article
Biochemistry & Molecular Biology
Mingzhu Yang, Wenhua Ji
Summary: In this study, a quinolinecarboxylic acid-linked COF (QCA-COF) was synthesized via the Doebner multicomponent reaction, exhibiting multifunctionality, high specific surface area, robust physicochemical stability, and excellent crystallinity. The significant aspect of QCA-COF is the simultaneous incorporation of quinolinyl and carboxyl functions. QCA-COF demonstrates excellent adsorption capacity for water-soluble organic pollutants and can efficiently remove them from real water samples at ppb level.
Article
Chemistry, Physical
Chaoyun Bai, Chuanbo Hu, Peiyuan Ni, Xin Zhang, Wenxin Zhang, Si Zhang, Jianting Tang, Tingzhen Li, Ying Li
Summary: In this study, a superhydrophobic-superoleophilic polyvinyl alcohol sponge modified by stearic acid/nano-TiO2 particles was constructed for oil-water separation. The sponge showed a water contact angle of 163 degrees, a water sliding angle of less than 3 degrees, and an oil contact angle of 0 degrees. The modified sponge could adsorb 5-8 times more oil than its own mass and maintain the oil sorption capacity even after being reused for 5 times.
SURFACES AND INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Di Zeng, Wenjing Wang, Yu Zhang, Juxue Wang, Bingkun Cui, Taikang Jia, Ruofan Li, Hongxiang Chu, Ling Zhang, Wenzhong Wang
Summary: A catalyst with phosphotungstic acid and cobalt sites was developed by incorporating them into UiO-66, enabling a one-pot cascade conversion of fructose to FDCA with high conversion (> 99%) and yield (94.6%) through controllable Lewis/Bronsted acid sites and redox sites. This study provides new strategies for efficient production of FDCA from biomass through the design of multifunctional catalysts.
Article
Chemistry, Physical
Saad H. Al-Thaqafy, Abdullah M. Asiri, Mohie E. M. Zayed, Md. Zafer Alam, Arif Ahmad, Masroor Fatima, Sanjay Kumar, Salman A. Khan
Summary: An efficient one-pot synthesis of MPMO was developed using 1-methylpyrrole-2-carbaldehyde, hippuric acid, and NaOAc. The solvatochromic properties of MPMO were investigated by studying its absorption and emission spectra in solvents of different polarities. MPMO showed a red shift in emission and absorption maximum as the solvent polarity increased. The interaction of MPMO with CTAB and SDS was used to determine their critical micellar concentration. Additionally, fluorescence quenching of MPMO by AgNPs and its antibacterial activity against Gram-negative bacteria were observed.
JOURNAL OF MOLECULAR STRUCTURE
(2023)
Review
Chemistry, Multidisciplinary
Yanpei Song, Joshua Phipps, Changjia Zhu, Shengqian Ma
Summary: Water pollution poses a growing threat to humanity due to widespread contamination. Efforts have been made to purify polluted water by removing hazardous components, but conventional methods have limitations in uptake capacity and selectivity. Advanced porous materials (APMs) show promise in improving the segregation of contaminants, with their high surface area and versatility making them ideal for designing novel adsorbents. This review summarizes the development and application of APMs in various water treatments, along with assessments of adsorption performance. Future opportunities for APMs in water purification are also discussed.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Yin Zhang, Songbo Chen, Abdullah M. Al-Enizi, Ayman Nafady, Zhiyong Tang, Shengqian Ma
Summary: In this study, a strategy for integrating molecular chiral frustrated Lewis pair (CFLP) with porous metal-organic framework (MOF) was proposed and the catalyst CFLP@MOF was successfully constructed, which enables heterogeneous asymmetric hydrogenation. The developed CFLP@MOF catalyst exhibits high activity/enantio-selectivity and excellent recyclability/regenerability, providing a new avenue for the design and preparation of advanced catalysts for asymmetric catalysis.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Review
Chemistry, Multidisciplinary
Yi Xie, Zeyu Liu, Yiyun Geng, Hao Li, Ning Wang, Yanpei Song, Xiaolin Wang, Jing Chen, Jianchen Wang, Shengqian Ma, Gang Ye
Summary: This review examines the recent advancements in uranium extraction from seawater, focusing on the development of adsorbents and the challenges faced in marine environments. It highlights the use of electrochemical and photochemical strategies and summarizes the latest achievements in marine testing by different countries. The review also discusses the fundamental, technical, and engineering aspects of uranium extraction from seawater, providing insights into the challenges and future prospects.
CHEMICAL SOCIETY REVIEWS
(2023)
Article
Physics, Applied
Savita, Sanjay Kumar, Ankush Vij, Anup Thakur
Summary: The TL response of gamma-irradiated Cr3+ doped MgAl2O4 nanocrystals was studied to investigate the influence of dopant ions on intrinsic defects and trap distribution. At low doping concentration, the TL glow curve showed a dominant incomplete peak attributed to deep F+ centers and contribution from shallow trapping states. The intensity and distribution of the TL glow curve were found to be affected by an increase in Cr doping concentration, indicating the interaction between electron spins and Cr3+ ions.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2023)
Article
Polymer Science
Pui Ching Lan, Yin Zhang, Weijie Zhang, Xueying Ge, Shengqian Ma
Summary: Covalent organic frameworks are used to create an ideal reaction environment for hydrolysis, improving stability and efficiency.
MACROMOLECULAR RAPID COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Dominic C. Castell, Varvara I. Nikolayenko, Debobroto Sensharma, Kyriaki Koupepidou, Katherine A. Forrest, Carlos J. Solanilla-Salinas, Brian Space, Leonard J. Barbour, Michael J. Zaworotko
Summary: An emerging strategy in gas storage technology is the development of physisorbents that undergo transformations in response to stimuli. This study reports two isostructural light modulated adsorbents (LMAs) that transform from non-porous to porous upon adsorption. LMA-1 exhibited multi-step adsorption while LMA-2 showed a single-step adsorption isotherm. The light responsive nature of the ligand was exploited with LMA-1 showing a maximum reduction of CO2 uptake under irradiation.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Editorial Material
Polymer Science
Qianrong Fang, Shengqian Ma
MACROMOLECULAR RAPID COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Varvara I. Nikolayenko, Dominic C. Castell, Debobroto Sensharma, Mohana Shivanna, Leigh Loots, Katherine A. Forrest, Carlos J. Solanilla-Salinas, Ken-ichi Otake, Susumu Kitagawa, Leonard J. Barbour, Brian Space, Michael J. Zaworotko
Summary: Flexible metal-organic materials capable of stimulus-induced switching between closed and open structures show potential application in gas storage and separation. A clathrate coordination network is demonstrated to undergo gas-induced switching between multiple phases through transient porosity, allowing diffusion of guests between discrete voids. The material shows reversible switching between guest-free and gas-loaded phases, and the diffusion mechanism is elucidated using in situ X-ray diffraction and computational methods.
Article
Spectroscopy
Ruhi Mehta, Sanjay Kumar
Summary: A fluorescent perimidine derivative called oPSDAN was developed as a sensor to detect Cu2+ and Al3+ ions, showing selectivity and sensitivity. The sensing process involved colorimetric change (for Cu2+) and emission turn-off response. The stoichiometries of oPSDAN with Cu2+ and Al3+ ions were determined to be 2:1 and 1:1, respectively. The sensor also exhibited promising potential in constructing memory device, encoder and decoder using UV-vis and fluorescence spectral results. Additionally, it was successfully tested for the detection of Cu2+ ions in drinking water.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2023)
Article
Multidisciplinary Sciences
Zhongshan Chen, Jingyi Wang, Mengjie Hao, Yinghui Xie, Xiaolu Liu, Hui Yang, Geoffrey I. N. Waterhouse, Xiangke Wang, Shengqian Ma
Summary: In this study, a family of isoreticular crystalline hydrazide-based COF photocatalysts was constructed using reticular chemistry, with their optoelectronic properties and local pore characteristics modulated by different linkers. The excited state electronic distribution and transport pathways in the COFs were investigated at a molecular level using experimental methods and theoretical calculations. One of the developed COFs, COF-4, exhibited remarkable excited state electron utilization efficiency and charge transfer properties, achieving a record-high photocatalytic uranium extraction performance of approximately 6.84 mg/g/day in natural seawater among all techniques reported so far. This study provides a new understanding of COF-based photocatalyst operation and guides the design of improved COF photocatalysts for various applications.
NATURE COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Ze-Ming Xu, Zhuoyi Hu, Yali Huang, Shu-Jin Bao, Zheng Niu, Jian-Ping Lang, Abdullah M. Al-Enizi, Ayman Nafady, Shengqian Ma
Summary: Hydrogenated nitrogen heterocyclic compounds are critical in various industries. Previous studies on the partial hydrogenation of these compounds have focused on costly and toxic precious metal catalysts. This research introduces a novel P/B type MOF-FLP catalyst achieved through a solvent-assisted linker incorporation approach, which significantly enhances catalytic hydrogenation reactions.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Multidisciplinary
Xiaolu Liu, Yinghui Xie, Yang Li, Mengjie Hao, Zhongshan Chen, Hui Yang, Geoffrey I. N. Waterhouse, Shengqian Ma, Xiangke Wang
Summary: This study proposes a practical approach for the selective removal of radioactive pertechnetate ions under extreme conditions. By modifying carbon capsules and utilizing an electrochemical redox process, the researchers achieved high removal capacities and excellent durability. This method offers new possibilities for nuclear waste management and environmental remediation.
Review
Biochemistry & Molecular Biology
Harsh Vardhan, Grace Rummer, Angela Deng, Shengqian Ma
Summary: Connecting organic building blocks by covalent bonds has led to the development of covalent organic frameworks (COFs), which transfer the flexibility of dynamic linkages to extended structures. COFs have emerged as a novel field of organic materials, offering a platform for tailored complex structural design. While progress has been made in the design and synthesis of COFs, large-scale synthesis with uniform structures and properties is still in its early stages. This review article provides an overview of the fundamentals of COFs, including designing principles, coupling reactions, topologies, synthetic strategies, characterization, growth mechanism, and activation aspects. The major challenges and future trends for large-scale COF fabrication are also discussed.
Article
Chemistry, Inorganic & Nuclear
Ling Zhang, Xi Chen, Wei-Na Wu, Xiao-Lei Zhao, Yun-Chang Fan, Yuan Wang, Zhi-Hong Xu, Ayman Nafady, Abdullah M. Al-Enizi, Shengqian Ma
Summary: An inorganic-organic hybrid probe MP-ZIF-90 was synthesized by condensation reaction between zeolitic imidazolate framework-90 (ZIF-90) and 4-methyl-1-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzyl)pyridinium bromide (MP). The probe showed intense green emission and was selectively quenched by ClO- anions. It exhibited rapid (within 20 s) and sensitive response to ClO-, with a limit of detection (LOD) of 0.612 μM. Importantly, the probe was successfully applied for fluorescence imaging of ClO- anions in mitochondria of living cells and zebrafish.
DALTON TRANSACTIONS
(2023)