Article
Chemistry, Physical
Hadi Kargar, Mehdi Fallah-Mehrjardi, Muhammad Ashfaq, Khurram Shahzad Munawar, Muhammad Nawaz Tahir
Summary: A cis-dioxomolybdenum Schiff base complex has been synthesized and characterized by various spectroscopic methods. The crystal structure of the complex was determined using single crystal X-ray diffraction, revealing a distorted octahedral coordination geometry. The synthesized complex exhibits catalytic potential for the oxidation of sulfides, yielding sulfoxides and sulfones in high yields and short reaction times.
JOURNAL OF MOLECULAR STRUCTURE
(2023)
Article
Chemistry, Multidisciplinary
Md Kamal Hossain, Maxym O. Plutenko, Joerg A. Schachner, Matti Haukka, Nadia C. Moesch-Zanetti, Igor O. Fritsky, Ebbe Nordlander
Summary: The new cis-dioxomolybdenum (VI) complexes containing tridentate hydrazone-based ligands have been synthesized and evaluated for their catalytic activities in various oxidation reactions. Complexes 1 and 3 showed better catalytic performances than complex 2 due to the differences in their steric properties.
JOURNAL OF THE INDIAN CHEMICAL SOCIETY
(2021)
Article
Chemistry, Physical
Simin Goorchibeygi, Rahman Bikas, Majid Soleimani, Milosz Siczek, Tadeusz Lis
Summary: A new mononuclear Fe(III) hydrazone Schiffbase coordination compound was successfully synthesized and its catalytic activity in the oxidation of cyclooctene by hydrogen peroxide was investigated. The study showed that influencing parameters like temperature, solvent, and the ratio of reagents have a considerable effect on the catalytic activity of the compound. Additionally, UV-Vis spectroscopy revealed new catalytically active species formed by the interaction between the compound and H2O2, serving as intermediates in the oxidation process of the substrate.
JOURNAL OF MOLECULAR STRUCTURE
(2022)
Review
Chemistry, Inorganic & Nuclear
Mehdi Fallah-Mehrjardi, Hadi Kargar, Khurram Shahzad Munawar
Summary: Most metal complexes of Schiff bases, which can be easily structurally altered, have an azomethine group as a coordination site. These complexes show outstanding catalytic activities in various chemical processes. Hydrazone-based Schiff base complexes offer enhanced properties and thermal stabilities, making them suitable for high-temperature catalysis.
INORGANICA CHIMICA ACTA
(2024)
Article
Chemistry, Multidisciplinary
Neda Heydari, Rahman Bikas, Maryam Shaterian, Tadeusz Lis
Summary: A new mononuclear tungsten coordination compound was synthesized and used as a heterogeneous catalyst for the epoxidation of olefins. The catalyst showed excellent catalytic activity and selectivity, and could be successfully recovered and reused multiple times without significant loss in its catalytic performance.
Article
Chemistry, Inorganic & Nuclear
Bharti Taxak, Jai Devi, Sanjeev Kumar, Sonika Asija
Summary: In this study, a series of new organotin complexes were synthesized and their structures were characterized using various techniques. The synthesized compounds exhibited good in vitro antimalarial and antimicrobial activities, as well as thermal stability and antioxidant activity. In addition, in silico ADME analysis suggested that these compounds could be used as orally active drugs.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Chemistry, Inorganic & Nuclear
Hadi Kargar, Maryam Bazrafshan, Mehdi Fallah-Mehrjardi, Reza Behjatmanesh-Ardakani, Hadi Amiri Rudbari, Khurram Shahzad Munawar, Muhammad Ashfaq, Muhammad Nawaz Tahir
Summary: This study reported the synthesis of two new oxovanadium and dioxomolybdenum Schiff base complexes for the first time. The complexes were characterized using various spectroscopic techniques and single crystal X-ray diffraction, revealing their crystal structure and catalytic activities. Theoretical calculations were consistent with experimental findings, and non-covalent interactions responsible for crystal packing were explored.
Article
Chemistry, Inorganic & Nuclear
Pegah Asadollahi, Rahman Bikas, Marta S. Krawczyk, Tadeusz Lis
Summary: A new methoxo bridged dinuclear Mn(III) coordination compound was synthesized and studied for its catalytic activity in the oxidation of styrene. The compound showed good selectivity and activity, with the best TOF obtained at 66.4 h(-1) under mild reaction conditions. Temperature and molar ratio of oxidant to substrate were found to significantly influence the conversion and selectivity of the oxidation products.
Article
Chemistry, Physical
Hadi Kargar, Mehdi Fallah-Mehrjardi, Reza Behjatmanesh-Ardakani, Khurram Shahzad Munawar
Summary: A new dioxomolybdenum(VI) complex was successfully synthesized using an ONO donor Schiff base, showing good catalytic potential for selective oxidation reactions. The complex exhibited distorted octahedral geometry and high efficiency in catalyzing the oxidation of aryl and alkyl sulfides.
JOURNAL OF MOLECULAR STRUCTURE
(2021)
Article
Chemistry, Inorganic & Nuclear
Mehdi Fallah-Mehrjardi, Hadi Kargar, Khurram Shahzad Munawar, Abolfazl Salimi
Summary: A magnetic heterogeneous nanocatalyst was synthesized using a dioxomolybdenum(VI) Schiff base complex, and its structure and characteristics were analyzed using various techniques. The nanocatalyst showed great catalytic potential for sulfoxidation, and it could be easily recovered using an external magnetic field without significant loss of activity after multiple cycles.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Nastaran Maddahzadeh-Darini, Somaieh Rezheh, Massomeh Ghorbanloo, Masami Mori, Hidenori Yahiro, Tahereh Mokary-Yazdeli
Summary: Thermo-responsive hydrogels were synthesized through radical polymerization and were successfully embedded with metal nanoparticles to create catalytic composite materials. The catalysts exhibited excellent recycling performance and stability.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Gang Wang, Tian Chen, Kuiyong Jia, Wencheng Ma, Chen-Ho Tung, Lei Liu
Summary: We report a new titanium-catalyzed asymmetric oxidation method for the preparation of diverse chiral hydroxylamines. This method exhibits excellent selectivity and functional group compatibility. This finding provides a new platform for chiral hydroxylamines as design elements for drug discovery.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Inorganic & Nuclear
Malini Roy, Debanjana Biswal, Nikhil Ranjan Pramanik, Michael G. B. Drew, Suvendu Paul, Payal KachhapC, Chanchal Haldate, Syamal Chakrabarti
Summary: Two new isostructural mononuclear dioxomolybdenum(VI) complexes MoO2X2L (X = Cl, Br) with a N-N donor ligand have been synthesized. The complexes were characterized by various spectroscopic techniques and elemental analyses, with crystal structures determined by single crystal X-ray diffraction. The complexes exhibit a distorted octahedral geometry and form fascinating supramolecular assemblies via non-covalent interactions. Extensive studies on intermolecular interactions, DFT calculations, electrochemical properties, and catalytic performance have been conducted.
Article
Nanoscience & Nanotechnology
Mohamed Shaker S. Adam, Amel Taha, Mostafa M. M. Mostafa, Farman Ullah, Mohamed M. M. Makhlouf
Summary: The industrialization of organic compound oxidation processes can be accelerated by synthesizing a monometallic dioxomolybdenum(VI) bis-Schiff base complex (MoO2L2) through coordination of 4-hydroxyiminophenol ligand (HL) with cis-MoO2 (2+) ion. A heterogeneous catalyst (MoO2L2@ZnO-TiO2) was prepared by immobilization of MoO2L2 on the surface of ZnO-TiO2 nanostructured particles. Both catalysts showed high catalytic potential and recyclability. Rating: 8/10.
ACS APPLIED NANO MATERIALS
(2023)
Article
Chemistry, Inorganic & Nuclear
Hadi Kargar, Pooran Forootan, Mehdi Fallah-Mehrjardi, Reza Behjatmanesh-Ardakani, Hadi Amiri Rudbari, Khurram Shahzad Munawar, Muhammad Ashfaq, Muhammad Nawaz Tahir
Summary: Two new oxovanadium and dioxomolybdenum Schiff base complexes were synthesized and characterized using various spectroscopic techniques, and their potential applications were demonstrated through theoretical calculations and catalytic efficiency studies.
INORGANICA CHIMICA ACTA
(2021)
Article
Biochemistry & Molecular Biology
Yun Wang, Florence Gayet, Jean-Claude Daran, Pascal Guillo, Dominique Agustin
Summary: In this study, Mn and Fe BPMEN complexes exhibited excellent reactivity in catalytic oxidation reactions, with volatile acetic acid being replaced by SiO2@COOH particles and evaluated for performance. SiO2@COOH beads were prepared by functionalizing SiO2, leading to a 100-fold reduction in molar ratio, and were utilized as catalysts in oxidation reactions of various substrates.
Article
Chemistry, Physical
Josipa Mihalinec, Matea Pajski, Pascal Guillo, Mirna Mandaric, Nikol Bebic, Jana Pisk, Visnja Vrdoljak
Summary: Molybdenum(VI) catalysts were prepared through reactions in methanol or acetonitrile, resulting in different structures of complexes. The polynuclear compound was characterized by X-ray diffraction analysis, and the catalytic performance in alcohol oxidation reactions was evaluated for carveol, cyclohexanol, and butan-2-ol.
Article
Chemistry, Physical
Silvija Mrkonja, Edi Topic, Mirna Mandaric, Dominique Agustin, Jana Pisk
Summary: Molybdenum compounds containing benzaldehyde-based hydrazones were synthesized and studied for their solid-state structures. These compounds were utilized as catalysts for cyclooctene epoxidation, showing high activity and selectivity under different conditions.
Article
Chemistry, Physical
Arijeta Bafti, Marta Razum, Edi Topic, Dominique Agustin, Jana Pisk, Visnja Vrdoljak
Summary: The study investigated the catalytic activity of dinuclear and mononuclear molybdenum(VI) complexes with aroylhydrazonato ligands in the epoxidation of cyclooctene and oct-1-ene. Different isomers of aroylhydrazones led to specific [MoO2L] units with varying catalytic activity, with TBHP in decane providing outstanding results for cyclooctene epoxidation. DFT calculations confirmed the relationship between ligand nature and reactivity with oxidant agents TBHP and H2O2, proposing a plausible mechanism with H2O2 after considering various pathways.
MOLECULAR CATALYSIS
(2021)
Editorial Material
Chemistry, Physical
Dominique Agustin, Jana Pisk
Article
Crystallography
Mirna Mandaric, Biserka Prugovecki, Ivana Kekez, Danijela Musija, Jelena Parlov Vukovic, Marina Cindric, Visnja Vrdoljak
Summary: Complex salts and co-crystals were synthesized by solution-based and mechanochemical methods. Stability of the complex salts could be reinforced by the incorporation of an azine compound. Solvent-mediated transformations led to different ligand replacement reactions.
Review
Biochemistry & Molecular Biology
Jana Pisk, Dominique Agustin
Summary: This article provides an overview of the research activities conducted by the LAC2 team at LCC in the field of sustainable chemistry, with a particular focus on their collaboration with the research team from the University of Zagreb. The team's work revolves around the development of catalytic processes using various molecular complexes and polyoxometalates as catalysts for organic solvent-free epoxidation. Their studies initially investigated the influence of complex properties and ligands on reactivity, and then expanded to the valorization of biomass resources.
Article
Crystallography
Edi Topic, Vladimir Damjanovic, Katarina Piculjan, Visnja Vrdoljak, Mirta Rubcic
Summary: A series of aryl-functionalized alkyl dihydrazones were synthesized and characterized in terms of structure and properties. The compounds showed good thermal stability and antibacterial activity.
Article
Chemistry, Physical
Josipa Sarjanovic, Martina Stojic, Mirta Rubcic, Luka Pavic, Jana Pisk
Summary: Molybdenum coordination complexes with biological and pharmacological potential and good catalytic performance were synthesized using a hydrazone Schiff-base tetradentate ligand. The structures of the ligands and complexes were determined by spectroscopic methods and X-ray diffraction. The electrical properties of the complexes were examined using impedance spectroscopy.
Article
Chemistry, Multidisciplinary
Sara Marijan, Marta Razum, Teodoro Klaser, Petr Mosner, Ladislav Koudelka, Zeljko Skoko, Jana Pisk, Luka Pavic
Summary: This study examines the effect of introducing Nb2O5 on the thermal, structural, and electrical properties of a quaternary system. The results show that Nb2O5 facilitates the transport of Na(+) ions, leading to non-monotonic trends in DC conductivity and activation energy. The conductivity mechanism is purely ionic, with V2O5 acting as a glass modifier and network-former. The enhancement in conductivity is driven by the formation of a mixed niobatephosphate glass network.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2023)
Article
Materials Science, Multidisciplinary
D. Bhadrarao, L. Pavic, A. Bafti, J. Pisk, A. Venkata Sekhar, G. Naga Koti Reddy, V. Ravi Kumar, G. Sahaya Baskaran, G. Naga Raju, N. Veeraiah
Summary: In this study, the dielectric properties of PBB glass ceramics doped with varying CuO concentrations were investigated. The structural analysis revealed the presence of anisotropic CuBi2O4 ferroelectric crystal phases in these glass ceramics. The study found that the CuO content affects the dielectric properties, and an appropriate CuO concentration can enhance the conductivity of the material.
ECS JOURNAL OF SOLID STATE SCIENCE AND TECHNOLOGY
(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)