Article
Chemistry, Physical
Tianyuan Zhong, Fuxing Sun, Zhuo Zhang, Guang Wang
Summary: A fluorescent chemosensor (QCT@ZIF-8) based on ZIF-8 and quercetin was designed and synthesized. QCT@ZIF-8 showed highly selective turn-on fluorescence response towards Al3+ in ethanol with a detection limit as low as 0.58 μM.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2023)
Article
Chemistry, Applied
Yucun Liu, Ning Li, Yongling Zhang, Yuan Wang
Summary: A sophisticated fluorescent chemosensor, NPDI, was designed and synthesized through a one-step condensation reaction. It exhibited fluorescence enhancement response toward Al3+, beginc accompanied by significant emission color change without interference from other metal ions. The binding stoichiometry and mechanism were confirmed using various techniques.
Article
Chemistry, Physical
Stephen Raja Rubina, Philip Raja Stalin, C. Selva Meenatchi, Sepperumal Murugesan, Raju Ranjith Kumar
Summary: The syntheses of previously unreported epiminocyclohepta[b]pyrazolo[4,3-e]pyridines have been achieved through a microwave-assisted two-component domino strategy. These compounds exhibited weak fluorescence, which was selectively enhanced by the addition of Al3+ through chelation. Furthermore, the fluorescence of the probes could be turned on and off by sequential addition of different metal ions.
JOURNAL OF MOLECULAR STRUCTURE
(2022)
Article
Chemistry, Organic
Sarita Gond, Pranjalee Yadav, Aayoosh Singh, Somenath Garai, Anusmita Shekher, Subash Chandra Gupta, Vinod P. Singh
Summary: The colorimetric and fluorescence responses of a new rhodamine-functionalized probe RMP were studied. RMP was thoroughly characterized using spectroscopic tools and X-ray diffraction. It demonstrated highly sensitive colorimetric and fluorescence responses towards Al3+, Fe(3+) and Cr(3+) metal ions among competing cations. The spectral shifts were visible in the visible region and detectable with the naked eye. The fluorescence quantum yield, stoichiometric ratio, binding constant, and detection limit of RMP towards Al3+, Fe(3+), and Cr(3+) metal ions were calculated. Furthermore, RMP-M3+ complexes were reversible and sensitive to EDTA, mimicking a molecular logic gate. Al3+, Fe(3+), and Cr(3+) metal ions were applied intracellularly in model human cells.
ORGANIC & BIOMOLECULAR CHEMISTRY
(2023)
Article
Chemistry, Analytical
Tianyuan Zhong, Donglin Li, Chen Li, Zhuo Zhang, Guang Wang
Summary: Two fluorescent chemosensors based on MOF-5 and curcumin were designed and synthesized, showing highly selective fluorescence enhancement responses towards Al3+ with low detection limits. These materials can be used as fluorescent sensors to identify and detect Al3+ in water samples.
ANALYTICAL METHODS
(2022)
Article
Spectroscopy
Sneha Ghosh, Shephali Mahato, Tiasha Dutta, Zisan Ahamed, Pritam Ghosh, Partha Roy
Summary: Selective detection of metal ions is crucial for understanding their roles in chemical and biological processes. In this study, we synthesized and characterized two rhodamine-based isomers and investigated their sensing properties towards Al3+. DFT study and cell imaging experiments demonstrated the practicality and high selectivity of these probes.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Chemistry, Multidisciplinary
Junzhu Zeng, Xin Xu, Lei Xue, Yang Xu, Xin Wang, Yang Zhang, Haibin Wang
Summary: A chemosensor (L) based on pyridine and julolidine was designed and synthesized for the detection of Al3+ in ethanol solution. The emission intensity of L was enhanced by 85-fold in the presence of Al3+ by emitting bright green fluorescence. The recognition process of L was not significantly affected by other common cations. The detection limit for Al3+ was estimated to be 2.74x10(-8) M.
Article
Chemistry, Physical
Onder Alici, Duygu Aydin
Summary: A novel phenolphthalein-derived Schiff base fluorescence probe FF2H has been synthesized and utilized for the fluorescence "turn-on" detection of Al3+ in aceto-nitrile: HEPES system. The probe showed high sensitivity and selectivity towards Al3+ detection, making it a promising tool for metal ion sensing.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2021)
Article
Spectroscopy
Yucun Liu, Lili Zhang, Lei Chen, Zhixue Liu, Chunbo Liu, Guangbo Che
Summary: The synthesized fluorescent chemosensor showed high selectivity and sensitivity for Al3+, with a detection limit of 4.22 x 10(-8) M and a stability constant of 4.82 x 10(4) M-1. The 1:1 binding stoichiometry of the compound to Al3+ was confirmed from the Job's plot based on fluorescence titrations.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2021)
Article
Spectroscopy
Dhanushkodi Mohanasundaram, R. Bhaskar, Murugesan Sankarganesh, Kasi Nehru, Gujuluva Gangatharan Vinoth Kumar, Jegathalaprathaban Rajesh
Summary: A novel pyridine-based receptor (S) has been reported for selective detection of copper ion, showing drastic color and fluorescence changes under normal light and UV light. The metal sensing ability of the receptor was confirmed through various spectroscopic methods, with a low limit of detection for Cu2+ ions. This receptor also demonstrated effective utilization for measurements of Cu2+ ions in different water tests.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2022)
Article
Chemistry, Applied
Jian Xiu, Nan Zhang, Chen Li, Abdulwahab Salah, Guang Wang
Summary: COF-DHTA shows moderate fluorescence emission and a highly selective fluorescence turn-on response towards Al3+ ions in DMF suspension. The coordination of Al3+ ions with N and O atoms on COF-DHTA and the suppression of PET contribute to the selective and sensitive fluorescence enhancement recognition and detection. This work may lead to the design of fluorescent COF chemosensors for specific metal ion recognition and detection.
MICROPOROUS AND MESOPOROUS MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Kehui Wei, Sheyun Lyu, Yuanying Liu, Mingyi Kang, Peng Liu, Xiaofeng Yang, Meishan Pei, Guangyou Zhang
Summary: A new fluorescence probe was designed and synthesized for the detection of Al3+ and Fe3+. The probe showed excellent sensitivity and stability, making it suitable for monitoring these ions in tap water.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Hyeongjin Kim, Boeon Suh, Cheal Kim
Summary: The pyridine-dicarbohydrazide-based chemosensor TMC showed a significant fluorescence response to Al3+ with a 1:1 binding ratio. It could distinguish Al3+ from other metal ions and be used practically for recognition of Al3+ in real environments, showing potential application prospects.
JOURNAL OF THE CHINESE CHEMICAL SOCIETY
(2022)
Article
Chemistry, Applied
Charles Immanuel David, Haritha Jayaraj, Gunasekaran Prabakaran, Krishnasamy Velmurugan, Duraisamy Parimala Devi, Rajendran Kayalvizhi, Angamuthu Abiram, Velu Rajesh Kannan, Raju Nandhakumar
Summary: A quinoline-naphthalene duo-based Schiff base probe was synthesized and characterized for its selective detection of Al3+ and HSO3- ions. The probe exhibited high sensitivity and low detection limits, making it suitable for applications in various fields such as environmental monitoring and bioimaging.
Article
Chemistry, Multidisciplinary
Manohar Patil, Su Jeong Park, Gyu Seong Yeom, Ratnamala Bendre, Anil Kuwar, Satish Balasaheb Nimse
Summary: A Schiff base ligand FHE was synthesized and showed specific complex formation with Zn2+ ions, resulting in enhanced fluorescence. FHE demonstrated high sensitivity for detecting Zn2+ ions in living cells and environmental samples.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Chemistry, Physical
Habiba Sultana, Manas Barai, Manas Kumar Mandal, Emili Manna, Dilip Kumar Maiti, Dibakar Dhara, Amiya Kumar Panda
Summary: The interfacial and aggregation behavior of sodium cholate and sodium deoxycholate in aqueous ionic liquid were studied. It was found that both IL and NaBF4 were able to reduce the critical micelle concentration of bile salts, with IL inducing the formation of larger aggregates by bile salts. Such systems are considered to have potential applications where the dual benefit of both a surfactant and an IL are warranted.
JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY
(2022)
Review
Chemistry, Analytical
Kinsuk Das, Dipanwita Majumdar
Summary: Recent fascinating research in graphene and MXene systems has led to exploring MXenes/graphene composites for advanced electrochemical energy storage applications. Scientists worldwide are focused on fabricating high-performing supercapacitors to address the increasing demands of self-powering, mechanically flexible, and wearable electronics for various high-tech fields such as biomedical, space research, and military sciences.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Physical
Jordi Ballesteros-Soberanas, Juan Carlos Hernandez-Garrido, Jose Pedro Ceron-Carrasco, Antonio Leyva-Perez
Summary: This study presents the de-novo synthesis of soluble or solid-supported Pd-(CaCO3)(n) clusters (n = 2-13) and their high catalytic activity for the semi-hydrogenation of internal alkynes compared to terminal alkynes. Mechanistic studies reveal that the reactivity, where internal alkynes are more reactive than terminal alkynes, arises from the higher electrophilicity of the Pd-(CaCO3)(n) cluster compared to the nanoparticulated Lindlar catalyst, highlighting the advantages of isolating the minimum catalytic unit of a solid catalyst. Translating solid active sites into soluble catalysts represents a paradigmatic shift in catalyst design.
JOURNAL OF CATALYSIS
(2022)
Article
Biochemistry & Molecular Biology
Sutapa Sahu, Yeasin Sikdar, Riya Bag, Michael G. B. Drew, Jose P. Ceron-Carrasco, Sanchita Goswami
Summary: This study successfully detects bivalent copper ions using a simple Schiff base probe QNH based on a quinoxaline-naphthaldehyde framework, and discusses in detail the absorption spectroscopy, theoretical aspects, and crystal study of the probe and probe-copper complex. The detection limit of the probe for Cu2+ in the absorption study is 0.45 μM in HEPES-buffer/acetonitrile (3/7, v/v) medium. The reversibility of the probe-copper complex has been investigated using EDTA. Additionally, a selective visual detection of copper in gel form has been established.
Article
Biochemistry & Molecular Biology
Sutapa Sahu, Yeasin Sikdar, Riya Bag, Javier Cerezo, Jose P. Ceron-Carrasco, Sanchita Goswami
Summary: Optical chemosensors with high specificity, sensitivity, and fast detection features have revolutionized the field of sensing. In this study, a Schiff base chemosensor containing isoindole-imidazole was designed and synthesized for detecting Zn2+ ion. The sensor showed highly selective and sensitive fluorescence turn-on response with a detection limit of 0.073 μm in the 3:7 HEPES buffer:DMSO medium.
Article
Chemistry, Medicinal
Jose P. Ceron-Carrasco
Summary: The search for antivirals against SARS-CoV-2 began as soon as the WHO declared the coronavirus outbreak a pandemic. Experimental and theoretical approaches have been used to identify potential antiviral compounds. Remdesivir has been identified as the standard treatment for severe cases, while other oral alternatives have also been proposed. However, the use of virtual screening simulations may not be the best strategy for identifying new antivirals, and a combination of theory and biological assays is needed for drug repurposing.
Article
Chemistry, Organic
Rajjakfur Rahaman, Md Tanjul Hoque, Dilip K. Maiti
Summary: A visible-light organophotoredox-catalyzed sulfurization of alkenes and alkynes with aromatic and heteroaromatic thiols using eco-friendly air (O-2) as the sole oxidant has been developed. This method provides a novel, benign, and metal-free strategy for the difunctionalization of alkenes and alkynes using organophotoredox catalyst Eosin Y. The selective and controlled synthetic approach shows good substrate generality to afford sulfoxides, beta-hydroxysulfoxides, and beta-keto sulfides in high yield and excellent regioselectivity.
Article
Virology
Sara Yolanda Fernandez-Sanchez, Jose P. Ceron-Carrasco, Cristina Risco, Isabel Fernandez de Castro
Summary: This study identified acetylsalicylic acid (ASA) as a potential inhibitor of the endonuclease domain of a bunyavirus RNA polymerase. ASA efficiently inhibited Bunyamwera virus (BUNV) infection in Vero cells, reducing viral titer and protecting the Golgi complex from virus-induced fragmentation. ASA also inhibits the assembly of BUNV replication organelles and new viral particles. Further investigation into ASA as a treatment for bunyavirus infections is warranted.
Article
Chemistry, Multidisciplinary
Javier E. Lopez-Hernandez, Nazia Nayeem, Jose P. Ceron-Carrasco, Afruja Ahad, Aiman Hafeez, Ignacio E. Leon, Maria Contel
Summary: This study describes new heterometallic binuclear and trinuclear platinum(IV)-gold(I) compounds that exhibit cytotoxicity and selectivity against a small panel of cancer cell lines. One trinuclear compound accumulates in the nucleus and mitochondria, induces apoptosis, and shows antimigratory and antiangiogenic properties against triple-negative breast cancer (TNBC) cell lines, as well as potent cytotoxic effect against TNBC 3D spheroids.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Javier E. Lopez-Hernandez, Nazia Nayeem, Jose P. Ceron-Carrasco, Afruja Ahad, Aiman Hafeez, Ignacio E. Leon, Maria Contel
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Chemistry, Applied
Jose P. Ceron-Carrasco, Natalia Sanchez, Denis Jacquemin
Summary: In this study, curcuminoid analogues were combined with cisplatin to design a series of prodrugs that can be photo-activated by visible light. The simulations revealed two novel complexes absorbing in the first phototherapeutic window (600-800 nm). The optimization of these structures for photoactivated chemotherapy is discussed.
Article
Chemistry, Inorganic & Nuclear
Sergio Sanz-Navarro, Jordi Ballesteros-Soberanas, Aaron Martinez-Castello, Antonio Domenech-Carbo, Juan Carlos Hernandez-Garrido, Jose Pedro Ceron-Carrasco, Marta Mon, Antonio Leyva-Perez
Summary: This study provides evidence that soluble starting Ru sources evolve into catalytically active peralkene Ru(II) species under reaction conditions, which may also explain the isomerization products found during other Ru-catalyzed alkene processes. A Finke-Watzky mechanism for catalyst formation is consistent with the evidence obtained.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Beatriz Chafer-Dolz, Jose M. Cecilia, Baldomero Imbernon, Estrella Nunez-Delicado, Victor Casaa-Giner, Jose P. Ceron-Carrasco
Summary: Virtual screening has been widely used in drug discovery and other fields. This study used computational and experimental methods to discover a new synergistic compound for insecticides, which showed significantly improved efficacy compared to existing solutions.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Rossella Greco, Guillermo Garcia-Lainez, Judit Oliver-Meseguer, Carlo Marini, Irene Dominguez, Miguel Lopez-Haro, Juan Carlos Hernandez-Garrido, Jose Pedro Ceron-Carrasco, Inmaculada Andreu, Antonio Leyva-Perez
Summary: In this study, ligand-free sub-nanometer metal clusters were prepared in water and utilized as highly active antitumoral agents for HeLa and A2870 cells. By adding a biocompatible polymer to a metal salt solution, liters of MC solution can be obtained for evaluation of the intrinsic antitumoral activity. Pt clusters exhibited significantly higher cytotoxicity compared to cisplatin and Pt NPs.
NANOSCALE ADVANCES
(2022)
Article
Biochemistry & Molecular Biology
Maria Isabel Rodriguez-Lopez, Jose Antonio Pellicer, Teresa Gomez-Morte, David Aunon, Vicente M. Gomez-Lopez, Maria Jose Yanez-Gascon, Angel Gil-Izquierdo, Jose Pedro Ceron-Carrasco, Gregorio Crini, Estrella Nunez-Delicado, Jose Antonio Gabaldon
Summary: A newly synthesized beta-CD-EPI-magnetic polymer was found to have good adsorption properties and separability from water. When combined with a pulsed light-AOP, it provides a promising alternative for removing dyes such as Direct Red 83:1 from water.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
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)
