Article
Chemistry, Inorganic & Nuclear
Binduja Mohan, Sandra Estalayo-Adrian, Deivasigamani Umadevi, Bjorn la Cour Poulsen, Salvador Blasco, Gavin J. McManus, Thorfinnur Gunnlaugsson, Sankarasekaran Shanmugaraju
Summary: A unique V-shaped chiral supramolecular scaffold, TBNap, was synthesized and characterized. A novel p-cymene-Ru(II)-curcumin conjugate, TB-Ru-Cur, was designed and was found to possess good anticancer activity. The findings have important implications for the development of new fluorescent probes and anticancer compounds.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Shivaprasad Achary Balahoju, Yogesh Kumar Maurya, Piotr J. Chmielewski, Tadeusz Lis, Mateusz Kondratowicz, Joanna Cybinska, Marcin Stepien
Summary: Peripheral substitution of a pi-extended porphyrin with bulky groups can control its curvature and stereochemistry. The coordination of large metal ions and the variation of substituents and ligands affect this control. Experiments have shown that stable enantiopure porphyrin propellers can be synthesized by adjusting experimental conditions.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Physical
Chao Zhang, Ting-wei Wang, Zu-jia Lu, Zhen-xin Yi, Bao-long Kuang, Shu Bu, Zhi-ming Xie, Yan Li, Kun Wang, Jian-guo Zhang
Summary: By designing and characterizing ionic salts PZCA•HClO4 (3) and ECPs [Ag(PZCA)ClO4]( n ) (4), it was found that they exhibit better thermal decomposition behavior, more suitable mechanical sensitivity, and more outstanding initiation performance.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Chemistry, Inorganic & Nuclear
Tingwei Wang, Zujia Lu, Zhenxin Yi, Baolong Kuang, Shu Bu, Zhiming Xie, Chao Zhang, Yan Li, Kun Wang, Jian-Guo Zhang
Summary: Based on the ideas of coordination and design chemistry, a new strategy was proposed to overcome the limitation of the number of oxidizing acid radicals in energetic coordination compounds. A multi-functional type energetic coordination compound, Cu(HAMPZCA)(2)(ClO4)(4)center dot 2H(2)O (ECCs-1), was designed and synthesized. ECCs-1 exhibited a double-type ionic-salt coordination compound structure, with more ClO4- ions, higher OB value, and excellent detonation performance.
INORGANIC CHEMISTRY FRONTIERS
(2023)
Article
Chemistry, Multidisciplinary
Huan Wang, Mahbod Morshedi, Mahesh S. Kodikara, Yovan de Coene, Koen Clays, Chi Zhang, Mark G. Humphrey
Summary: Metal-alkynyl donor/nitro acceptor-functionalized porphyrins are promising candidates for nonlinear optical (NLO) applications, exhibiting exceptional properties such as record quadratic optical nonlinearity, remarkable two-photon absorption, and outstanding three-photon absorption, as well as being the first porphyrins to exhibit four-photon absorption. The absorption peaks for two-, three-, and four-photon absorption correspond to multiples of linear absorption bands associated with porphyrin-localized pi*<-pi transitions and donor-porphyrin to porphyrin-acceptor charge transfer transitions.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Inorganic & Nuclear
Chao Zhang, Ting-Wei Wang, Zu-Jia Lu, Zhen-Xin Yi, Bao-Long Kuang, Shu Bu, Zhi-Ming Xie, Yan Li, Kun Wang, Jian-Guo Zhang
Summary: The structure of energetic compounds plays a crucial role in determining their performance. This study investigates the influence of different substituent positions on the performance of primary explosives. Two Ag(I)-based complexes were prepared using structurally isomeric ligands, and their structures were confirmed. Experimental results show that the substituent position affects thermal stability, mechanical sensitivity, and energy output. ECPs-2, with the substituent at position 4, exhibits stronger explosive power and initiating capability.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Organic
Tetsuo Okujima, Hayato Inaba, Shigeki Mori, Masayoshi Takase, Hidemitsu Uno, Yoshiaki Chino, Yusuke Okada, Nagao Kobayashi
Summary: A novel compound was synthesized through a series of reactions and its molecular structure and properties were confirmed by various analytical methods.
Article
Chemistry, Inorganic & Nuclear
Hao-Hui Xie, Qin Wang, Jiao-Lin Weng, Yun-Fan Yan, Hong-Yi Bian, Ying Huang, Fa-Kun Zheng, Ren-Hui Qiu, Jian-Gang Xu
Summary: This study successfully synthesized energetic coordination polymers with high energy and reliable stabilities using a strategy of coordination polymerization. The synthesized ECPs showed excellent performance in terms of thermal stability and detonation heat, and exhibited low mechanical sensitivity to external mechanical action. Compound 2 also demonstrated hypergolic properties, indicating potential applications in the field of propellants.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Inorganic & Nuclear
Chao Zhang, Ting-Wei Wang, Zu-Jia Lu, Zhen-Xin Yi, Bao-Long Kuang, Shu Bu, Zhi-Ming Xie, Yan Li, Kun Wang, Jian-Guo Zhang
Summary: The structure of energetic compounds plays a crucial role in determining their performance, and even minor variations in structure can have a significant impact. In this study, different substituent positions were investigated for their influence on the performance of primary explosives. Experimental results showed that the compound with a 4-IZCA substituent exhibited lower thermal stability, lower mechanical sensitivity, and higher explosive power compared to the compound with a 2-IZCA substituent.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Inorganic & Nuclear
Min Liu, Xun Han, Zhong Huang, Hui Huang, Xinping Long, Bisheng Tan
Summary: In this study, high-nitrogen multicore metal complexes were proposed as primary explosive materials with stable metal-metal multiple bonds and multipoint coordination ability. The fuzzy bond orders of metal-metal and metal-ligand were calculated by DFT, indicating stability and high detonation heat. Transition metal stability can be altered by spin multiplet due to spin orbitals, suggesting the potential of these complexes as new high-energy primary explosives and spintronic materials.
Review
Chemistry, Multidisciplinary
Arijit Singha Hazari, Shubhadeep Chandra, Sanjib Kar, Biprajit Sarkar
Summary: Metal complexes of multi-porphyrins and multi-corroles have unique and interesting properties. The chemistry of metal complexes of bis-porphyrins and bis-corroles has been relatively underexplored. Despite the challenging synthesis, the exciting properties of these compounds make a strong case for further research.
CHEMISTRY-A EUROPEAN JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Vladimir A. Burmistrov, Irina P. Trifonova, Mikhail K. Islyaikin, Aleksander S. Semeikin, Oskar Koifman
Summary: This work investigated the solvation effects on the kinetics of the reaction between porphyrins and zinc or cadmium acetate, focusing on the structure and characteristics of the intermediate - sitting-atop (SAT) complex. The results showed that the rate constants of the reaction are highly dependent on the solvent composition, with an acceleration observed when the substituent has stronger electron-donating properties. The DFT method was used to study the structure and energy parameters of the porphin-zinc SAT complexes and their solvates, revealing a significant distortion of the porphin structure during the formation of the intermediate and its solvation.
Article
Chemistry, Inorganic & Nuclear
Wen-Shuai Dong, Wen-Li Cao, Qamar-un-Nisa Tariq, Xiao-Wei Wu, Yong Hu, Chao Zhang, Jian-Guo Zhang
Summary: Two bimetallic complexes of 4-hydroxy-3,5-dinitropyrazole were synthesized and characterized, showing promising catalytic performance in the thermal decomposition of ammonium perchlorate by significantly lowering the activation energy.
DALTON TRANSACTIONS
(2022)
Review
Chemistry, Multidisciplinary
Dzeneta Dedic, Adrian Dorniak, Uwe Rinner, Wolfgang Schoefberger
Summary: This article focuses on the latest research developments and future challenges in the field of small molecule activation, emphasizing the research significance in catalysis and strategies to address environmental crises.
FRONTIERS IN CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Lukasz Kielesinski, Francesco F. Summa, Jeanet Conradie, Hilah C. Honig, Ariel Friedman, Gugliemo Monaco, Lior Elbaz, Abhik Ghosh, Daniel T. Gryko
Summary: The new naphthocorrole ligands combine the cavity size of corroles and the dianionic character of porphyrins. They possess nonaromatic properties but exhibit optical spectra similar to porphyrins, and can be easily synthesized using a simple protocol.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Karolis Norvaisa, Sophie Maguire, Claire Donohoe, John E. O'Brien, Brendan Twamley, Ligia C. Gomes-da-Silva, Mathias O. Senge
Summary: Inspired by 'picket-fence' systems, this study utilized strain to introduce intramolecular tension, leading to selective compound atropisomer conversion and the formation of distinctive supramolecular nanostructures.
CHEMISTRY-A EUROPEAN JOURNAL
(2022)
Review
Biochemistry & Molecular Biology
Arno Wiehe, Mathias O. Senge
Summary: This review provides an overview of the research, development, and clinical applications of the photosensitizer 5,10,15,20-tetra(m-hydroxyphenyl)chlorin (mTHPC, temoporfin) in photodynamic (cancer) therapy (PDT) and other medical applications. The review covers the chemistry, biochemistry, pharmacology, and clinical applications of temoporfin, including the formulation development such as liposomal formulations. The literature covered spans from 2009 to early 2022 and is connected to a previous extensive review on this photosensitizer, which traces its development, approval, and clinical application.
PHOTOCHEMISTRY AND PHOTOBIOLOGY
(2023)
Article
Chemistry, Organic
Claire Donohoe, Asterios Charisiadis, Sophie Maguire, Brendan Twamley, Fabio A. Schaberle, Ligia C. Gomes-da-Silva, Mathias O. Senge
Summary: The time dependence of atropisomer interconversion has hindered the development of single atropisomer drug candidates. The instability caused by moderate interconversion energy barriers is a concern for drug stability. However, there is a recent focus on developing stable atropisomer drugs with enhanced activity.
EUROPEAN JOURNAL OF ORGANIC CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Biao Yang, Kaifeng Niu, Nan Cao, Nitika Grover, Wenchao Zhao, Alexander Riss, Jonas Bjoerk, Willi Auwaerter, Johannes V. Barth, Mathias O. Senge
Summary: In this study, the behavior of 1,3-disubstituted BCP moieties on metal surfaces was examined using low-temperature scanning tunneling microscopy/non-contact atomic force microscopy studies and density functional theory modeling. The configuration, supramolecular assembly, and thermally activated dehalogenative coupling reactions of BCP-containing precursors on Au(111) were investigated, resulting in the formation of polymeric chains. These findings provide sub-molecular insights into the behavior of BCP scaffolds on surfaces and expand the potential application of BCP derivatives in custom-designed surface architectures.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Nitika Grover, Maxime Cheveau, Brendan Twamley, Christopher J. Kingsbury, Cornelia M. Mattern, Mathias O. Senge
Summary: We present a two-step method for obtaining versatile bicyclo[1.1.1]pentane (BCP) derivatives using Grignard reagents. This approach allows for the incorporation of BCP units into tetrapyrrolic macrocycles, as well as the synthesis of a novel class of calix[4]pyrrole analogues by replacing bridging methylene groups with BCP units. Moreover, electron-withdrawing substituents at the BCP bridgeheads lead to the formation of a doubly N-confused system. Single-crystal X-ray diffraction analyses and 2D NMR spectroscopy reveal that the pyrrole rings in BCP-containing macrocycles exist in 1,3-alternate or alpha beta alpha beta conformations.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Irina Osadchuk, Hanna-Eliisa Luts, Karolis Norvaisa, Victor Borovkov, Mathias O. Senge
Summary: The determination of molecular stereochemistry and absolute configuration is important in chemistry, pharmacology, and biology. Electronic circular dichroism (ECD) is a widely used tool for chirality assignment, but the mechanisms of induced ECD in porphyrin complexes are not fully understood.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Crystallography
Harry C. Sample, Brendan Twamley, Mathias O. Senge
Summary: The crystal structures of three S-(pyridin-2-yl) benzothioesters with different para-phenyl substituents are reported. These compounds are used in the mono-acylation of pyrrolic species to produce multifunctional tetrapyrroles. The dominant interactions in the crystal packing vary from pi-pi stacking in compound 1 to exclusively C-H···O/N interactions in compound 3 as the para-phenyl motif changes from electron withdrawing to electron donating.
ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS
(2023)
Article
Crystallography
Harry C. Sample, Brendan Twamley, Mathias O. Senge
Summary: The crystal structure of compound 1 (C26H24Br2N4O8S2) is presented in this study. Compound 1 was obtained as a by-product in the synthesis of geminal-dimethyl hydrodipyrrins. Unexpected enantiomeric resolution was observed in both the bulk sample and crystal of 1, with distinct C-H···O (C-methyl-H···O-nitro, C-sp3-H···O-sulfonyl) interactions present in the enantiomers, along with other interactions, forming a polymer along the c-axis direction. Little data is available on the 1,3-dinitrobutane scaffold, unlike the well-documented pyrrolic fragments.
ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Davide Ranieri, Alberto Privitera, Fabio Santanni, Karolina Urbanska, Grant J. Strachan, Brendan Twamley, Enrico Salvadori, Yu-Kai Liao, Mario Chiesa, Mathias O. Senge, Federico Totti, Lorenzo Sorace, Roberta Sessoli
Summary: By synthesizing and studying a VIVO-CuII porphyrin dimer, we observed measurable exchange coupling and good spin coherence, making it suitable for operating two-qubit molecular spin-based quantum gates under various conditions.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Irina Osadchuk, Hanna-Eliisa Luts, Karolis Norvaisa, Victor Borovkov
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Editorial Material
Chemistry, Multidisciplinary
Irina Osadchuk, Hanna-Eliisa Luts, Karolis Norvaisa, Victor Borovkov, Mathias O. Senge
Summary: This article features the groups of Irina Osadchuk at Tallinn University of Technology and Mathias Senge at Trinity College Dublin. The image illustrates the measurement and simulation of ECD and UV-Vis spectra of a porphyrin molecule with two guest molecules (R)-camphor sulfonic acid under UV-visible light irradiation. Read the full text of the article at 10.1002/chem.202301408.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Nan Cao, Jonas Bjoerk, Eduardo Corral-Rascon, Zhi Chen, Mario Ruben, Mathias O. Senge, Johannes V. Barth, Alexander Riss
Summary: This study investigates how aromaticity affects the reactivity of alkyne-substituted porphyrin molecules on a Au(111) surface. The experiments show that carbon atoms stabilized by aromaticity display lower reactivity, which is consistent with density functional theory calculations.
Review
Chemistry, Multidisciplinary
Tomoya Ishizuka, Nitika Grover, Christopher J. Kingsbury, Hiroaki Kotani, Mathias O. Senge, Takahiko Kojima
Summary: This article summarizes the synthetic methods and design aspects of nonplanar porphyrin formation, the key properties and functionality of the nonplanar aromatic framework, and the scope and utility of this emerging class in addressing important scientific, industrial, and environmental issues.
CHEMICAL SOCIETY REVIEWS
(2022)
Article
Chemistry, Multidisciplinary
Karolis Norvaisa, John E. O'Brien, Irina Osadchuk, Brendan Twamley, Victor Borovkov, Mathias O. Senge
Summary: In this study, we investigated the activity and symmetry of porphyrin-based supramolecular receptors in a chiral environment through NMR analysis of atropisomeric receptors. By exploiting the hydrogen bond abilities of the exposed porphyrin inner core, we found that N-H signals in a previously underutilized region of the spectrum can detect enantiomeric compositions with three times higher sensitivity than previously reported systems.
CHEMICAL COMMUNICATIONS
(2022)
Article
Chemistry, Physical
Robby Buechner, Vinicius Vaz da Cruz, Nitika Grover, Asterios Charisiadis, Mattis Fondell, Robert Haverkamp, Mathias O. Senge, Alexander Foehlisch
Summary: Free base porphyrins, such as 5,10,15,20-tetrakis(4-carboxylatophenyl)porphyrin, are powerful photosensitizers for singlet oxygen generation and light-harvesting. The atomic level selectivity of dynamic UV pump - N K-edge probe X-ray absorption spectroscopy, combined with TD-DFT theory, provides insight into the excited molecular states within an unusual relaxation pathway. The efficient intersystem crossing is confirmed to be the result of long singlet excited state lifetime and thermal effects.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(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)
