Article
Chemistry, Multidisciplinary
Badipatla Vishnu Priya, D. H. Sreenivasa Rao, Ayon Chatterjee, Santosh Kumar Padhi
Summary: Engineering of Arabidopsis thaliana hydroxynitrile lyase (AtHNL) has led to the discovery of variants with significantly improved catalytic efficiency in the asymmetric Henry reaction. These variants have shown excellent enantioselectivity and higher conversion in the synthesis of different (R)-beta-nitroalcohols.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Inorganic & Nuclear
Hanna K. Maliszewska, Carla Arnau del Valle, Ying Xia, Maria J. Marin, Zoe A. E. Waller, Maria Paz Munoz
Summary: This study explores the incorporation of donor-type substituents on the allene core to form coordination complexes, discussing their potential applications in catalysis and interaction with chemical and biological systems. It also demonstrates the synthesis and characterization of bis(pyridyl)allenes as novel Pd(ii), Pt(iv), and Au(iii) complexes, and their use as catalysts and antimicrobial or anticancer agents with promising activities. Additionally, the study delves into their unusual interaction with DNA structures, opening up new avenues for research in metallodrugs with new mechanisms of action.
DALTON TRANSACTIONS
(2021)
Article
Chemistry, Multidisciplinary
Han Yin Lim, Anton V. Dolzhenko
Summary: Gluconic acid is a safe and easily biodegradable chemical that is commonly used as a catalyst in organic synthesis. Its aqueous solutions perform well in certain reactions.
SUSTAINABLE CHEMISTRY AND PHARMACY
(2021)
Article
Chemistry, Inorganic & Nuclear
C. Elamathi, R. J. Butcher, A. Mohankumar, P. Sundararaj, K. P. Elango, P. Kalaivani, R. Prabhakaran
Summary: A novel quinoline-based Schiff base sensor has been developed for selective sensing of methionine and aspartic acid through on-off-on type detection of copper ions, demonstrating bright green fluorescence in live cells both in vitro and in vivo.
DALTON TRANSACTIONS
(2021)
Article
Chemistry, Multidisciplinary
Suwitra Charoensuk, Jing Tan, Mohini Sain, Hathaikarn Manuspiya
Summary: This report presents a significant leap in designing electronic structures that display reversible dual-phase photoluminescence properties from single-crystal hybrid ligand frameworks. The three-dimensional Cu(C3N2H4)(4)Cl-2 complex frameworks show potential for luminescence Cu-based sensors to detect heavy metal ion species using emission intensity.
Article
Chemistry, Multidisciplinary
Fubo Gu, Xuetao Qin, Mengwei Li, Yao Xu, Song Hong, Mengyao Ouyang, Georgios Giannakakis, Sufeng Cao, Mi Peng, Jinling Xie, Meng Wang, Dongmei Han, Dequan Xiao, Xiayan Wang, Zhihua Wang, Ding Ma
Summary: In this study, atomically dispersed Rh on TiO2 suspended in an aqueous solution was used as a catalyst for the oxidation of methane to methanol. Promoted by copper cations, the catalysts showed high activity and selectivity, achieving millimole level yields of methanol with a selectivity higher than 99%.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Physical
David Tetour, Marika Novotna, Jana Hodacova
Summary: The copper(II) complex with two enantiomerically pure trans-cyclohexane-1,2-diamine units has been proven to be an efficient catalyst for the enantioselective Henry reaction of aromatic aldehydes with nitromethane. The study on various reaction conditions indicates that only one cyclohexane-1,2-diamine unit is involved in the catalysis of the Henry reaction.
Review
Chemistry, Physical
Kirti Singh, Abhishek Kundu, Debashis Adhikari
Summary: This article discusses the importance of ligands in coordination chemistry and highlights the impact of redox-active ligands in catalysis research. These ligands can act as redox reservoirs and also influence catalytic processes by changing the basicity of the metal.
Article
Chemistry, Organic
Shinya Adachi, Akira Saito, Masakatsu Shibasaki
Summary: This study reports a method for direct catalytic asymmetric reactions of alkylnitriles and imines. By adding specific catalysts and additives, high yields, high anti/syn diastereoselectivities, and high enantiomeric ratios can be achieved.
Article
Chemistry, Physical
Akbope K. Borangazieva, Yerzhan A. Boleubayev, Zhuldyz U. Ibraimova, Sholpan S. Itkulova, Gulshara S. Polimbetova
Summary: The furnace gas resulting from the electrothermal production of yellow phosphorus is highly hazardous due to its flammability, explosiveness, corrosiveness, and high toxicity. It cannot be used as chemical raw materials or process fuel due to the presence of toxic impurities such as phosphine (PH3), yellow phosphorus (P-4), and hydrogen sulphide (H2S). The authors propose a method using copper-ammonia complexes as catalysts to oxidize and purify the gas, achieving a purification degree of 90-99% for the phosphine component.
Article
Energy & Fuels
Ruiming Fang, Zhongqing Yang, Xianwei Liu, Yunfei Yan, Jingyu Ran, Li Zhang
Summary: By optimizing copper-manganese catalysts supported on silicon dioxide through adjusting the load of active material, the ratio of bimetal, and calcination conditions, the oxidation efficiency of VOCs was improved, leading to a decrease in activation energy, delay in deactivation, and enhancement in catalytic performance.
Article
Chemistry, Physical
Ajay S. Bangwal, Manisha Chauhan, Prabhakar Singh
Summary: A series of double perovskite oxide materials were synthesized and their catalytic activity in alkaline medium was investigated. The results show that these materials exhibit catalytic activity for both oxygen evolution reaction (OER) and oxygen reduction reactions (ORR). Among them, Pr0.90Ba1.10Co2O6-δ shows the best activity in OER.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Inorganic & Nuclear
Rituraj Das, Dhrubajyoti Talukdar, Plaban J. Sarma, Hemrupa Kuilya, Ranjit Thakuria, Diganta Choudhury, Sanjeev P. Mahanta
Summary: This study investigates the significance of the hydroxyl moiety position and its role in intramolecular H-bonding in determining the selective colorimetric response to fluoride in functionalized thiourea derivatives. A methodology involving metal ion coordination for stabilizing deprotonated thiourea is proposed for the colorimetric sensing of fluoride in water medium. The interaction mechanism is thoroughly studied using various techniques and further validated by DFT calculations.
DALTON TRANSACTIONS
(2021)
Review
Chemistry, Inorganic & Nuclear
Keshab Mondal, Soumen Mistri
Summary: This review focuses on the catalytic activities of Schiff base ligands and their transition metal complexes in the aldol and Henry reactions. It provides valuable references for studying the catalytic activity of these complexes and their applications in organic synthesis.
COMMENTS ON INORGANIC CHEMISTRY
(2023)
Article
Engineering, Environmental
Ayelen F. Crespi, Paula N. Zomero, Ana L. Perez, Carlos D. Brondino, Antonia Infantes Molina, Yamila Garro Linck, Gustavo A. Monti, Mariela A. Fernandez, Enrique Rodriguez-Castellon, Juan M. Lazaro-Martinez
Summary: The aim of this study was to propose the use of new heterogeneous catalysts based on montmorillonite materials to remove emerging pollutants. The catalytic activity of the composites was demonstrated by their ability to degrade pollutants and produce non-toxic waste.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Organic
Leijie Zhou, Nicola Zanda, Moreshwar Chaudhari, Mariane Felicio Da Silva, Miquel A. . Pericas
Summary: A family of polystyrene-supported ligands based on the design of Defieber and Carreira were developed and successfully applied in the iridium-catalyzed asymmetric allylic amination of unmasked allylic alcohols, resulting in 27 examples with up to 99% enantiomeric excess. Two functional resins, L1 and L4, demonstrated significant advantages including easy preparation, ligand recyclability, and convenient handling for sequential use. Notably, the catalytic use of iridium complexes of L1 and L4 allowed for the efficient reuse of expensive iridium metal, which is not achievable under homogeneous conditions with monomeric complexes.
JOURNAL OF ORGANIC CHEMISTRY
(2023)
Article
Biochemistry & Molecular Biology
Anirban Karmakar, Anup Paul, Maria Fatima C. da Silva, Armando J. L. Pombeiro
Summary: Two new 1D Cd(II) coordination polymers were synthesized and used as catalysts for the solvent-free Strecker-type cyanation reaction of different acetals. One of the catalysts showed higher activity, and both catalysts were found to be recyclable.
Article
Biochemistry & Molecular Biology
Cristiane M. Cazal, Andreia P. Matos, Vanessa de Cassia Domingues, Gracielle Oliveira Sabbag Cunha, Paulo Cezar Vieira, Maria Fatima das Gracas Fernandes da Silva, Joao Batista Fernandes
Summary: The aim of this study was to assess the effects of extracts from Trichilia catigua A. Juss. on the fall armyworm and conduct a phytochemical study on the aril extract. Limonoids were isolated and their structures were identified. The extracts showed high larval mortality, prolonged larval phase, and reduced pupal weight in the fall armyworm.
ZEITSCHRIFT FUR NATURFORSCHUNG SECTION C-A JOURNAL OF BIOSCIENCES
(2023)
Article
Chemistry, Multidisciplinary
Mohamed M. A. Soliman, Carlos M. M. Granadeiro, Salete S. S. Balula, Armando J. L. Pombeiro, Kamran T. T. Mahmudov, Elisabete C. B. A. Alegria
Summary: In this study, two aquasoluble Fe-III complexes (Fe1 and Fe2) were incorporated into amine-functionalized SBA-15 support, and the resulting composites (Fe1@aptesSBA-15 and Fe2@aptesSBA-15) were used as heterogeneous catalysts for the conversion of furfuryl alcohol. The successful preparation of the composites was confirmed by various characterization methods. The catalysts showed high activity and recyclability for the conversion reaction under mild conditions.
Article
Polymer Science
Hongyi Suo, Ana Maria Faisca Phillips, Manas Satrudhar, Luisa M. D. R. S. Martins, Maria de Fatima G. da Silva, Armando J. L. Pombeiro, Mingyang Han, Wen-Hua Sun
Summary: A series of vanadium(V) aroylhydrazine-arylolates have been found to be employed in ethylene polymerization to produce ultra-high molecular weight polyethylene (UHMWPE), and the significant effects of different cocatalysts on the reaction have been revealed.
JOURNAL OF POLYMER SCIENCE
(2023)
Review
Chemistry, Multidisciplinary
Kamran T. Mahmudov, Armando J. L. Pombeiro
Summary: The regio-, site-, stereo- or chemoselective homogeneous catalytic transformations are crucial for the growth/success of the chemical industry. Noncovalent interactions have shown potential in controlling selectivity, reducing synthetic steps, and increasing the reactivity of catalyst. Inspired by enzymes, various types of synthetic metal complex and organocatalysts have been developed, where noncovalent interactions play a pivotal role in directing selectivity and improving efficiency. This article highlights recent examples of noncovalent interaction-based selectivity control in catalytic transformations of organic substrates.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Editorial Material
Chemistry, Multidisciplinary
Armando J. L. Pombeiro, Kamran T. Mahmudov
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Review
Environmental Sciences
Brij Mohan, Ritu Kumari, Gurjaspreet Singh, Kamal Singh, Armando J. L. Pombeiro, Xuemei Yang, Peng Ren
Summary: Pharmaceutical residues are undecomposed remains from drugs used in medical and food industries and their potential adverse effects have raised global concerns. This study focuses on the electrochemical detection of pharmaceutical residues using porous covalent-organic frameworks (COFs) and metal-organic frameworks (MOFs). It provides an overview of drug toxicity and its impact on living organisms, discusses various porous materials and drug detection techniques, explores the development of COFs and MOFs, reviews their stability and reusability, and analyzes the detection limits and functionalities of COFs and MOFs. The study also discusses the challenges and opportunities in the field.
ENVIRONMENT INTERNATIONAL
(2023)
Article
Chemistry, Organic
Susanta Hazra, Anirban Karmakar
Summary: The reaction between 3-aminobenzenesulfonic acid and Cu(NO3)(2)& BULL;2.5H(2)O in H2O/DMF solution produces a new copper(II) complex. The crystal structure analysis reveals that the complex has a distorted octahedral geometry. Comparison with a known copper(II) complex shows that they have the same empirical formula and coordinated solvents, but different structures.
Article
Chemistry, Inorganic & Nuclear
Alexey N. Bilyachenko, Ivan S. Arteev, Victor N. Khrustalev, Lidia S. Shul'pina, Alexander A. Korlyukov, Nikolay S. Ikonnikov, Elena S. Shubina, Yuriy N. Kozlov, Nuno Reis Conceicao, M. Fatima C. Guedes da Silva, Kamran T. Mahmudov, Armando J. L. Pombeiro
Summary: Nonanuclear Cu5Cs4-based phenylsilsesquioxanes exhibit unprecedented Si-14-based cyclic silsesquioxane ligand, nontrivial nuclearity, supramolecular organization, and catalytic activity in the mild oxidative functionalization of alkanes and alcohols, and in the Baeyer-Villiger oxidation of cyclohexanone, and in the tandem cyclohexane oxidation/B-V oxidation of cyclohexanone.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Krishan Kumar, Mangey Ram Nagar, Anirban Karmakar, Feng-Rong Chen, Jwo-Huei Jou, Subrata Ghosh, Sunil Kumar, Subrata Banik
Summary: This study investigated how the peripheral substituents of a pyridine core affect the hole transport materials (HTMs) for organic light-emitting diodes through experimental and theoretical studies. The results showed that the functionalization of the materials led to a reduction in hole reorganization energy and enhanced hole transport properties. The molecular arrangement and the number of peripheral carbazole units also played a significant role in the performance of the materials. The experiment demonstrated that P0C3Py molecule exhibited good hole-transporting characteristics and can be used as an efficient HTM in OLEDs.
CRYSTAL GROWTH & DESIGN
(2023)
Article
Chemistry, Organic
Iswar Chandra Mondal, Priya Rawat, Maksym Galkin, Snata Deka, Anirban Karmakar, Prosenjit Mondal, Subrata Ghosh
Summary: This study presents the design and synthesis of three cationic julolidine-azolium conjugates as turn-on fluorescent probes for intracellular RNA imaging. The results show that two of the probes, BTZ-JLD and SEZ-JLD, exhibit promising photophysical properties and optical responses towards RNA, making them suitable candidates for biological studies, especially cellular imaging applications.
ORGANIC & BIOMOLECULAR CHEMISTRY
(2023)
Article
Chemistry, Organic
Iswar Chandra Mondal, Priya Rawat, Maksym Galkin, Snata Deka, Anirban Karmakar, Prosenjit Mondal, Subrata Ghosh
Summary: This study reports the design and synthesis of three cationic julolidine-azolium conjugates as turn-on fluorescent probes for intracellular RNA imaging. The probes show high quantum yields and brightness upon interaction with RNA, making them suitable candidates for biological studies and cellular imaging applications.
ORGANIC & BIOMOLECULAR CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Zihan Ma, Lishuang Wang, Tingting Chen, Guangning Wang
Summary: In this study, two kinds of 3D self-doped (N/O) lilac-based and coriander-based porous carbons with high performance have been prepared.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Qin Wang, Yun-Fan Yan, Jiao-Lin Weng, Ying Huang, Fu Yang, Hao-Hui Xie, Fei Tan, Fa-Kun Zheng, Jian-Gang Xu
Summary: Balancing energy and mechanical sensitivities is a challenging issue in the field of energetic materials. This study constructed a 3D energetic metal-organic framework with nitrogen-rich ligand and NO3- anions. The framework demonstrated high stability, energy density, and excellent mechanical sensitivities, making it a potential insensitive energetic material.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Marrium Saeed, Urooj Kamran, Amina Khan, Md Irfanul Haque Siddiqui, Hasan Jamal, Haq Nawaz Bhatti
Summary: In this study, magnesium-aluminum layered double hydroxides (Mg-Al-LDH) were synthesized using an environmentally friendly hydrothermal technique for adsorbing the dye reactive green 5 (RG5). To improve the adsorption capability, composites were prepared by combining Mg-Al-LDH with low-cost Mangifera indica stone biomass (MISB). The results showed that the composites had high adsorption capacities for RG5 dye and could be regenerated.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Xuanlin Zhan, Xiaojie Li, Yunyan Zeng, Siyan Jiang, Chao Pan, Shiyu Pan, Jiaquan Huang, Heqian Zhang, Zhiwei Qin
Summary: This study reports on the potential prospects of natural products derived from the rhizosphere for the development of antibiotics and herbicides, as well as the advancements in cultivating a mutant strain that produces a substantial quantity of lydicamycins, a potent family for herbicide development.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Jie Zhu, Jiangtao Yu, Linhua Zhu, Xiaoxiao Yu, Jixing Liu, Yanhong Chao, Jingzhou Yin, Peiwen Wu, Jian Liu, Wenshuai Zhu
Summary: This study successfully demonstrates the 3D printing of attapulgite monoliths and investigates the influence of thermal treatment on their properties. The thermal treated monoliths show superior catalytic performance at low temperatures.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Yanzhu Ye, Yixiang Ye, Jiannan Cai, Zhongshui Li, Shen Lin
Summary: In this paper, a novel Pt/CoP/C photo-electro synergistic catalyst was successfully synthesized and its performance was investigated. The catalyst exhibited excellent photo-electro catalytic performance, with significantly higher hydrogen production compared to a commercial catalyst. The introduction of cobalt phosphide and the existence of Co3O4 were identified as key factors for enhancing the catalytic activity.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Nurul Hidayah Abu Bakar, Wan Norfazilah Wan Ismail, Hartina Mohd Yusop, Noreen Farzuhana Mohd Zulkifli
Summary: Hydrophobic coatings inspired by the lotus effect have gained popularity for their ability to solve various problems. The sol-gel method, utilizing silica, alumina, and titania, is explored as an environmentally friendly approach to produce water-based hydrophobic coatings. This study focuses on producing water-based hydrophobic coatings for cotton and polyester fabrics using a one-step sol-gel method. The coated fabrics exhibited improved hydrophobic properties, altered surface morphologies, and lower air permeability compared to uncoated fabrics. TEOS-PDMS coating provides a promising approach for enhancing the hydrophobic and surface properties of cotton and polyester fabrics.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Nikita Belko, Hanna Maltanava, Anatol Lugovski, Polina Shabunya, Sviatlana Fatykhava, Evgeny Bondarenko, Pavel Chulkin, Sergey Poznyak, Michael Samtsov
Summary: This study investigates the difference in electrochemical behavior between rhodamine B hydrazide and rhodamine B acylhydrazone, and finds that rhodamine B acylhydrazone exhibits higher reversibility in electrooxidation. These results can be applied for developing new sensors with desired electrochemical properties.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Showket Ahmad Bhat, Mohd Ikram
Summary: In this study, 0-3 particulate multiferroic composites were synthesized and characterized. The composites exhibited excellent ferroelectric and ferromagnetic properties, as well as high piezoelectric strain and magnetoelectric coupling effects.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Carla Gomes, Mariana Costa, Susana M. M. Lopes, Bernardo Albuquerque Nogueira, Rui Fausto, Jose A. Paixao, Teresa M. V. D. e Melo, Luisa M. D. R. S. Martins, Marta Pineiro
Summary: The development of sustainable processes requires the integration of green chemistry principles. In this study, a solvent-free synthesis method was developed to prepare new copper catalysts, which efficiently catalyze cycloaddition reactions under solvent-free mechanochemical conditions. Through this process, the principles of atom economy, reduction of solvents and auxiliaries, design for energy efficiency, and reduction of derivatives and catalysis are combined.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Zhihua Liu, Jinzhe Li, Jianguo Zhou
Summary: This study demonstrates the enhancement of photoelectrochemical activity of BiFeO3 photoelectrodes through ion modification, which increases visible light absorption and active area, leading to improved PEC water splitting performance.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Yisheng Zhang, Wensong Li, Jing Li, Fang Li, Wei Xue, Xinqiang Zhao, Yanji Wang
Summary: Pt/C and SO42-/ZrO2 were used as catalysts for the synthesis of p-aminophenol through the catalytic transfer hydrogenation of nitrobenzene in water with formic acid as the hydrogen source. The optimal Pt loading for PAP selectivity was found to be 1 wt%. The presence of different valence states of Pt affected both the nitrobenzene hydrogenation and formic acid decomposition. Among different solid acid catalysts tested, SO42-/ZrO2 exhibited the highest catalytic activity for p-aminophenol formation. Under the optimized reaction conditions, the conversion of nitrobenzene reached 80.0%, with a selectivity of 47.6% for p-aminophenol.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Pradyota Kumar Behera, Papita Behera, Amlan Swain, Santosh Kumar Sahu, Ajeena Sahoo, Laxmidhar Rout
Summary: We have developed a simple and direct method for the synthesis of diaryl ether using an oxygen bridged bimetallic CuMoO4 nanocatalyst under mild reaction conditions. The catalyst exhibited tolerance towards a wide range of substrates with various functional groups. It is efficient and recyclable. This methodology allows easy access to nitrofen derivatives (herbicides) from unactivated 2,4-dichlorophenol, which are important for agriculture and pharmaceuticals.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Yihua Fu, Yan Zhang, Changwei Hu, Zhishan Su
Summary: The mechanism of the reaction between CO2 and styrene oxide for cyclic carbonate was revealed using density functional theory calculations. The noncatalytic reaction occurred via a concerted mechanism, while in the presence of guanidine and tetrabutylammonium iodide (TBAI) co-catalysts, the epoxide ring-opening by nucleophilic attack of an iodide anion was predicted to be the rate-determining step. Guanidine acted as the H-bond donor to activate styrene oxide, facilitating the reaction with a lower activation barrier.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Saikat Khamarui, Sirshendu Ghosh
Summary: Copper nanorods (Cu-NRs) exhibit significant plasmonic behavior and can act as efficient catalysts in redox processes and coupling. A benign decarboxylative approach, utilizing localized surface plasmon resonance (LSPR) assisted catalysis with Cu-NRs, has been developed for the production of alkane analogues from alkyl carboxylic acids under visible light. The catalyst shows a broad substrate scope and high functional group tolerance, without the need for an external oxidant or proton source. A plausible mechanism for this recyclable nano-catalyst has also been proposed based on control experiments.
NEW JOURNAL OF CHEMISTRY
(2024)