Article
Engineering, Environmental
Kaixiang Shi, Yongxian Lin, Zhangshi Xiong, Junhao Li, Shuai Zhang, Quanbing Liu
Summary: The construction of three-dimensional microporous structure cathode host materials for lithium sulfur batteries can effectively suppress polysulfide shuttling, improving the cycling stability and rate performance. By developing a series of crosslinked porphyrin-based porous polyimides with hierarchical structures, the research team has provided a new approach for scalable high-performance cathode materials for lithium-sulfur batteries.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Aishik Bhattacharya, Arnab Kumar Nath, Arnab Ghatak, Abhijit Nayek, Souvik Dinda, Rajat Saha, Somdatta Ghosh Dey, Abhishek Dey
Summary: The reduction of SO2 by iron(II) tetraphenylporphyrin has been demonstrated, generating an intermediate [Fe-III-SO](+) species which releases SO. The SO obtained from the chemical reduction of SO2 can be evidenced in the form of a cheletropic adduct of butadiene resulting in an organic sulfoxide.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Inorganic & Nuclear
Ryan J. Day, Anthony J. Gross, Elizabeth S. Donovan, Kyle D. Fillo, Gary S. Nichol, Greg A. N. Felton
Summary: The structures and properties of five novel iron-based compounds were investigated, with X-ray crystallography revealing the solid-state structure of two of them, carbonyl IR spectra and reduction potentials correlating with Hammett constants of different groups, and compound 5 showing low overpotential activity in the electrocatalytic production of dihydrogen.
Article
Engineering, Environmental
Sijing Chen, Zhen Li, Longsheng Wu, Lu Liu, Jingping Hu, Huijie Hou, Sha Liang, Jiakuan Yang
Summary: Hemin has attracted attention as an efficient catalyst, but molecular aggregation limits its direct application. Immobilizing hemin on multiwalled carbon nanotubes (CNTs) through ball milling was done to address this issue. The CNTs-hemin catalyst showed significantly improved performance in the peroxymonosulfate system, with a 650-fold increase in the apparent rate constant and 97.8% degradation of sulfathiazole in 5 minutes. The dominant reactive species in the CNTs-hemin/peroxymonosulfate system were proposed to be high-valent iron-oxo porphyrin cation ((Porp)+???FeIV=O) radicals. Electron transfer between CNTs and hemin promoted the generation of these radicals. This research enriches the understanding of supported biomimetic catalysts for PMS activation and highlights the role of support materials in catalytic activity.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Biochemistry & Molecular Biology
Andrea Bombana, Muralidharan Shanmugam, David Collison, Alexander J. J. Kibler, Graham N. N. Newton, Christof M. M. Jager, Anna K. K. Croft, Simone Morra, Nicholas J. J. Mitchell
Summary: 'Bacterial-type' ferredoxins have a cluster that enables electron transfer and biological processes. Peptide maquettes based on the cluster-forming motif have been used as ferredoxin models. This study explores the integration of a [4Fe4S]-peptide maquette into a H-2-powered electron transport chain and demonstrates its reconstitution under aerobic conditions. The integration of these artificial metalloproteins into a semi-synthetic electron transport chain is also demonstrated.
Article
Environmental Sciences
Xiaorong Yang, Jingping Hu, Longsheng Wu, Huijie Hou, Sha Liang, Jiakuan Yang
Summary: Inspired by the role of heme, iron porphyrin was used as a novel homogeneous catalyst to overcome the limitations of Fenton systems. Multiple active species were identified during the activation of H2O2, which allowed the degradation of pollutants over a wide pH range through their cooperative behavior. This study provides a new approach to wastewater treatment and sheds light on the interaction between metalloporphyrin and peroxide in an aqueous solution.
ENVIRONMENTAL POLLUTION
(2022)
Article
Chemistry, Inorganic & Nuclear
Alejandro Torres, Alba Collado, Mar Gomez-Gallego, Carmen Ramirez de Arellano, Miguel A. Sierra
Summary: In this study, tetranuclear [Fe2S2] hydrogenase mimic complexes containing Pt(II), Ni(II), and Ru(II) complexes were synthesized and their electrochemical properties were investigated. The incorporation of metal complexes in the structure modulated the electronic communication between the redox-active [Fe2S2] centers. Specifically, the structure of the phosphine ligand in the Pt compounds played a crucial role in facilitating or hindering the electronic communication, while the addition of a Ru-bis(bipyridine) complex promoted the communication. These experimental and computational findings provide insights into the electronic interaction between redox-active centers in hydrogenase.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Matthew A. Nitka, Katarina E. Zerbee, Julianne M. Dee, Matthew A. Cranswick, Edward P. Zovinka, John R. De Backere
Summary: Traditional syntheses of free-base meso-tetraphenylporphyrin (H2TPP) and its metallated derivatives are energy-intensive, use hazardous solvents, and generate waste. To align with green chemistry principles, we optimized a microwave-assisted, microscale synthesis of H2TPP and alternative routes for metallation including solvent-substituted reflux and mechanochemical syntheses for undergraduate teaching. Green metrics and qualitative comparison to previous syntheses were used to evaluate the greenness of these syntheses.
GREEN CHEMISTRY LETTERS AND REVIEWS
(2023)
Article
Nanoscience & Nanotechnology
Parul Verma, Debabrata Samanta, Papri Sutar, Arup Kundu, Jyotishman Dasgupta, Tapas Kumar Maji
Summary: Self-assembled porphyrin-based coordination polymer gel has been developed as a soft photocatalyst material for hydrogen production from water under visible light, showing a significant enhancement in catalytic activity through the coassembly of a cocatalyst [Fe2(bdt)(CO)6]. The study supported a cascade electron transfer process for H2 production.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Microbiology
Gerrit J. Schut, Dominik K. Haja, Xiang Feng, Farris L. Poole, Huilin Li, Michael W. W. Adams
Summary: Microorganisms use electron bifurcating enzymes to carry out unfavorable reactions. The HydABC enzyme is found to be common in the microbial world and has various functionalities. A new class of electron bifurcating enzyme, the Bfu family, is proposed to be associated with specific microbial phyla.
FRONTIERS IN MICROBIOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Arash Mouradzadegun, Sheida Hamid, Asiyeh Sheikhzadeh Takabi
Summary: A modern and attractive Cu(II) porphyrin-based polymer network with high surface area was synthesized in this work, showing high catalytic activity and recycling efficiency in oxidation of benzyl alcohols. The organization of the catalyst was confirmed by various spectroscopic techniques.
RESEARCH ON CHEMICAL INTERMEDIATES
(2021)
Article
Chemistry, Multidisciplinary
Fanjun Zhang, Casseday P. Richers, Toby J. Woods, Thomas B. Rauchfuss
Summary: Azadithiolate, a cofactor in all [FeFe]-hydrogenases, undergoes acid-catalyzed rearrangement. The reaction results in the exchange of the amine group and leads to the formation of Fe-6[(SCH2)(3)N](2)(CO)(17). X-ray crystallography shows the structure of the interconnected Fe-2(SR)(2)(CO)(x) butterfly subunits. Further studies reveal the participation of Fe-2[(SCH2)(2)NR](CO)(6) in various amine exchange reactions.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Review
Plant Sciences
Bing Yang, Chenyun Xu, Yuting Cheng, Ting Jia, Xueyun Hu
Summary: Iron-sulfur (Fe-S) clusters are ancient protein cofactors that exist ubiquitously in organisms and play important roles in various life processes. Plastids, semi-autonomous organelles believed to originate from cyanobacterial endosymbionts, have a Fe-S cluster biosynthesis and delivery pathway similar to cyanobacteria. Fe-S clusters are crucial for the normal functioning of downstream Fe-S proteins in plastids. Recent research has made significant progress in understanding this pathway and this review summarizes these findings as well as the remaining scientific challenges.
PLANT CELL REPORTS
(2023)
Review
Chemistry, Inorganic & Nuclear
Gregory A. Hunter, Gloria C. Ferreira
Summary: This review summarizes the scientific progress made in the last three decades on ferrochelatase and heme biosynthesis. The coordination chemistries of the ferrous iron substrate and iron-sulfur cluster in relation to the reaction mechanism and structure of mammalian ferrochelatase are discussed.
COORDINATION CHEMISTRY REVIEWS
(2022)
Article
Biochemistry & Molecular Biology
Jose L. Alvarez-Hernandez, Alison A. Salamatian, Andrew E. Sopchak, Kara L. Bren
Summary: In this study, the electrocatalytic activity of cobalt microperoxidase-11 (CoMP11-Ac) catalyst was assessed, and it was found to remain active under highly acidic conditions. H2 evolution by this catalyst occurs through two pH-dependent mechanisms.
JOURNAL OF INORGANIC BIOCHEMISTRY
(2023)
Article
Materials Science, Multidisciplinary
Rong Liu, Xiaodong Lv, Fengyu Li
Summary: Two planar 2D Dirac transition-metal nitrides, MN4 (M = Zn, Cd) monolayers, are reported using density functional theory (DFT) computations. These monolayers have unique structures, rich physics, and intriguing properties, exhibiting mechanical, dynamic, and thermal stabilities. They also feature anisotropic Dirac fermions with ultrahigh Fermi velocities, making them potentially useful in nanoelectronic devices.
PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS
(2023)
Article
Materials Science, Multidisciplinary
Dongxu Jiao, Zhongxu Wang, Yuejie Liu, Qinghai Cai, Jingxiang Zhao, Carlos R. Cabrera, Zhongfang Chen
Summary: A new class of two-dimensional nanomaterials, transition-metal phosphide monolayers (TM2P, TM = Ti, Fe, Zr, Mo, and W), were proposed as potential electrocatalysts for urea production. The Mo2P monolayer exhibited the best catalytic activity for urea synthesis due to its small kinetic energy barrier, low limiting potential, and suppressing effects on competing side reactions. The optimal adsorption strength with the key *NCON species on the Mo active sites contributed to the outstanding catalytic activity. These findings not only propose a novel catalyst for urea production but also broaden the potential applications of metal phosphides in electrocatalysis.
ENERGY & ENVIRONMENTAL MATERIALS
(2023)
Article
Chemistry, Physical
Gaoxiang He, Linguo Lu, Ningsi Zhang, Wangxi Liu, Zhongfang Chen, Zhaosheng Li, Zhigang Zou
Summary: The effects of halogen doping in beta-Fe2O3 semiconductor on its band structures and electron-hole recombination were investigated. Doping Br, I, and At leads to transformation from direct-band-gap semiconductor to indirect-band-gap semiconductor due to large atomic radii. F- and Cl-doped beta-Fe2O3 remain as direct-band-gap semiconductors. Cl dopant narrows the band gap by approximately 0.3 eV and increases the solar to hydrogen efficiency for solar water splitting.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Chemistry, Physical
Zhen Gao, Fengxian Ma, Hongbo Wu, Yongheng Ge, Ziming Zhu, Ying Liu, Yalong Jiao, Zhongfang Chen
Summary: In this study, by using first principles computations, we predicted that a two-dimensional Dirac nodal loop semimetal, RuB4, can be a superior catalyst for the hydrogen evolution reaction (HER) with high carrier mobility, activity, and an active basal plane. The RuB4 monolayer is thermodynamically, dynamically, mechanically, and thermally stable, and provides multiple Ru and B sites for the HER on the basal plane. It also shows high Fermi velocities and novel mechanical properties due to its Dirac nodal loop semimetal structure.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Physical
Shukai Wang, Shuaiyu Wang, Rong Liu, Linwei Sai, Lei Wang, Fengyu Li
Summary: In this study, a general strategy was proposed to assemble two-dimensional ideal Dirac semimetals using transition metal boride clusters. This strategy was illustrated by creating a thermodynamically stable 2D titanium diboride called 2c-TiB2, which was found to be a Dirac semimetal with an ideal Dirac cone at the Fermi level. Furthermore, this monolayer exhibited intersecting Dirac phonons.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Chemistry, Physical
Yanmei Hu, Xiaohui Hu, Yifeng Wang, Chunhua Lu, Arkady V. Krasheninnikov, Zhongfang Chen, Litao Sun
Summary: By using density functional theory calculations, it is found that the use of 2D metals as electrodes can effectively suppress the Fermi level pinning effect and achieve tunable Schottky barrier in CrX3 (X = I, Br) monolayers. These findings are important for electrode selection and the development of CrX3-based spin devices.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Multidisciplinary Sciences
Zengxia Pei, Hao Tan, Jinxing Gu, Linguo Lu, Xin Zeng, Tianqi Zhang, Cheng Wang, Luyao Ding, Patrick J. Cullen, Zhongfang Chen, Shenlong Zhao
Summary: The authors demonstrate that insulative polymeric hydrogels can serve as metal-free oxygen evolution electrocatalysts with significant extension potentials.
NATURE COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Linke Yu, Fengyu Li, Jingsong Huang, Bobby G. Sumpter, William E. Mustain, Zhongfang Chen
Summary: In this work, a combination of first-principles density functional theory (DFT) and machine learning (ML) was used to explore the potential of double-atom catalysts (DACs) on defective graphene for CO2 reduction reactions. Stable DACs were identified based on their binding energy, formation energy, and dissolution potential, and machine learning models were employed to predict potential electrocatalysts.
Article
Chemistry, Physical
Yi-lei Li, Qing Zhao, Xu-jia Liu, Ying Liu, Ying-juan Hao, Xiao-jing Wang, Xin-ying Liu, Diane Hildebrandt, Feng-yu Li, Fa-tang Li
Summary: Precise regulation of photogenic electron transfer pathway is crucial for enhancing photocatalytic carbon dioxide reduction efficiency and product selectivity. In this study, a g-C3N4/CoCo-layered double hydroxide (LDH) heterostructure was fabricated by designing the interface chemical bond Co-N-2 bond at the atomic level. This heterostructure realizes high-speed electron transport through the precise connection of valence band and conduction band using the interfacial Co-N-2 bond. Experimental results show that the addition of CoCo-LDH reduces the overpotential of water oxidation, regulates the charge delocalization of g-C3N4, and lowers the energy barrier of the CO2 intermediate in the reduction half-reaction. The selectivity of carbon-based substances in the products reaches 100%, with an optimal CO yield of 71.39 μmol g(-1) h(-1), which is among the highest values for g-C3N4-based photocatalysts.
Article
Chemistry, Multidisciplinary
Zhichun Shi, Fengyu Li, Hong Zhao, Indranil Chakraborty, Zhongfang Chen, Raphael G. Raptis
Summary: Two differently substituted pyrazole ligands were investigated for the topology of their Pt complexes. Upon deprotonation, a triangular trinuclear metallacycle and a dinuclear half-lantern species were formed. The Pt-2(II) complex was stoichiometrically oxidized to produce a deep-blue Pt-2(III) analog with an unsymmetrical coordination across the Pt-Pt bond. The complexes were characterized using various analytical methods and density functional theory calculations were performed to study their electronic structure and chemical bonding.
CHEMISTRY-SWITZERLAND
(2023)
Article
Materials Science, Multidisciplinary
Ting Han, ShuaiYu Wang, Bing Han, Yu Liu, Fengyu Li, Lei Wang
Summary: This study utilizes first-principles calculations to discover three two-dimensional potassium borides with a hidden kagome-like lattice structure, and demonstrates their topological semimetal characteristics and phonon-mediated superconductivity.
Article
Chemistry, Physical
Yu Liu, Wenlong Li, Fengyu Li, Zhongfang Chen
Summary: By using density functional theory (DFT) computations, we have identified 12 stable two-dimensional disulfide monolayers with low Young's modulus and different magnetic and electronic properties. Some of these monolayers have potential applications in photocatalysis and electrochemical hydrogen evolution reaction.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Physical
Yu Liu, Wenlong Li, Fengyu Li, Zhongfang Chen
Summary: By using DFT computations, we discovered 12 stable 2D disulfide monolayers with various magnetic and electronic properties. These monolayers show potential applications in photocatalysis and electrochemical reactions. This work provides theoretical guidance for further experimental and theoretical explorations.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Inorganic & Nuclear
Lu Dong, Linke Yu, Xueli Sun, Xiongkai Tang, Xuexin You, Jiaqi Tang, Zi-Ang Nan, Dongxu Cao, Yanyuan Jia, Simin Li, Fengyu Li, Shuo Guo, Hui Shen
Summary: We report a stable gold-copper alloy nanocluster with high catalytic performance. The nanocluster exhibits high thermal stability and contains rich uncoordinated copper sites, which contribute to its extremely high catalytic activity in C-O coupling reactions. This finding is of great significance for understanding the underlying rationale of ligand-functionalized metal nanocatalysts.
INORGANIC CHEMISTRY FRONTIERS
(2023)
Article
Chemistry, Inorganic & Nuclear
Guojun Hu, Ziyue Deng, Yanwei Wang, Dan Yuan, Yong Zhang, Yingming Yao
Summary: A series of rare-earth metal complexes were synthesized and used as efficient initiators for the polymerization of trimethylene carbonate (TMC) and (L)-lactide ((L)-LA).
JOURNAL OF ORGANOMETALLIC CHEMISTRY
(2024)
Article
Chemistry, Inorganic & Nuclear
Van Ha Nguyen, John H. K. Yip
Summary: In this study, eight PtII-azulene complexes were synthesized to investigate the effect of metalation on the electronic structures, spectroscopy, and luminescence of organic chromophores. The results showed that the attachment of Pt substituents to azulene affected the HOMOs, LUMOs, and luminescence properties. The study provides insights into the role of metalation in modifying the properties of organic chromophores.
JOURNAL OF ORGANOMETALLIC CHEMISTRY
(2024)
Article
Chemistry, Inorganic & Nuclear
Moon Kedia, Virender Singh, Bhaskaran Shankar, Malaichamy Sathiyendiran
Summary: This study synthesized two types of neutral binuclear metallocycles using a one-pot solvothermal method and characterized their structures. The analysis revealed that these complexes adopt a binuclear heteroleptic cyclic architecture and belong to phosphine oxide donor (P=O)-based supramolecular coordination cyclic complexes.
JOURNAL OF ORGANOMETALLIC CHEMISTRY
(2024)
Article
Chemistry, Inorganic & Nuclear
Radhey S. Srivastava
Summary: This study demonstrates the effectiveness of zero-valent elements as reductants for the deoxydehydration reaction of polyols catalyzed by ONO-pincer ligated molybdenum dioxo. The insolubility and easy separability of the reductants and their oxidized products during the reaction are emphasized. Additionally, the choice of ligand has an impact on the catalytic performance of the reaction.
JOURNAL OF ORGANOMETALLIC CHEMISTRY
(2024)
Article
Chemistry, Inorganic & Nuclear
Hao Zhou, Yajun Sun, Li Deng, Weiran Yang, Yuehui Li
Summary: Efficient Ru-catalyzed hydrogenation of aldehydes was achieved using carbazole-derived phosphine ligands, with the crucial role of N-H moiety in promoting the catalytic reaction. The method was successfully applied in the Co/Ru-catalyzed hydroformylation process, resulting in the production of long-chain alcohols with excellent yields.
JOURNAL OF ORGANOMETALLIC CHEMISTRY
(2024)
Article
Chemistry, Inorganic & Nuclear
Theodor Danescu, Alexandru Lupan, Radu Silaghi-Dumitrescu, R. Bruce King
Summary: The structures and energies of complexes containing (Me2C2N2P)2Ru2(CO)n and (Me2C2N2P)2Fe2(CO)n have been studied. Low-energy structures are characterized by the presence of bridging diazaphospholyl rings, while higher-energy structures involve different ligand structures.
JOURNAL OF ORGANOMETALLIC CHEMISTRY
(2024)
Article
Chemistry, Inorganic & Nuclear
Savannah C. Kapper, Aamani Ponnekanti, Jonas Schaab, Tian-yi Li, Christine L. Chung, Gael Ung, Peter I. Djurovich, Mark E. Thompson
Summary: Organometallic iridium complexes with two cyclometalated ligands and one bis-oxazoline derived ancillary ligand were studied. These complexes have emission spanning across the visible and near-ultraviolet region, with moderate to high photoluminescence quantum yields. The (ppy)2Ir(BOX-CN) complexes were resolved into Delta- and Lambda-diastereomers based on solubility differences.
JOURNAL OF ORGANOMETALLIC CHEMISTRY
(2024)
Article
Chemistry, Inorganic & Nuclear
Zahra Karimi Sangari, Hossein Naeimi
Summary: In this research, a nanostructured CoCuFe2O4 catalyst was prepared using a brief and useful synthetic strategy. This catalyst was used for synthesizing 1,2,4,5-tetrasubstituted imidazole derivatives under ultrasonic irradiation. The approach offers advantages such as high efficiency, short reaction times, simplicity of the reaction medium, accelerated reaction rates, and easier separation and purification of products.
JOURNAL OF ORGANOMETALLIC CHEMISTRY
(2024)
Article
Chemistry, Inorganic & Nuclear
Rukhsana Gul, Wajid Munir, Ebraheem Abdu Musad Saleh, Shaukat Shujah, Muhammad Sirajuddin, Saira Tabassum, Khalil Ur Rehman, Dilfaraz Khan, Sameerah I. Al-Saeedi, Ehab A. Abdelrahman
Summary: Two new Schiff base ligands were synthesized and used to form copper, nickel, and cobalt complexes. The synthesized compounds were characterized and screened for various biological activities. The metal complexes showed better activities in antibacterial, antifungal, antidiabetic, and antioxidant assays.
JOURNAL OF ORGANOMETALLIC CHEMISTRY
(2024)
Review
Chemistry, Inorganic & Nuclear
Ahsan Nazir, Pengwei Huo, Ameena Tur Rasool
Summary: This review explores the potential of g-C3N4-based S-scheme heterojunctions in addressing environmental issues. It summarizes the mechanism and preparation techniques of S-scheme heterojunctions based on g-C3N4, and presents recent studies on their applications in pollutant removal, CO2 reduction, hydrogen production, and bacterial disinfection. The review concludes with an outlook on future challenges for g-C3N4-based S-scheme heterojunctions.
JOURNAL OF ORGANOMETALLIC CHEMISTRY
(2024)
Article
Chemistry, Inorganic & Nuclear
Francois Mazars, Koffi Senam Etse, Guillermo Zaragoza, Lionel Delaude
Summary: The activity of three Pd-PEPPSI catalyst precursors with N-heterocyclic carbene (NHC) ligands derived from caffeine and theophylline in Mizoroki-Heck reactions was tested. The results showed that the catalysts achieved high conversions and yields, especially in the presence of electron-withdrawing substituents.
JOURNAL OF ORGANOMETALLIC CHEMISTRY
(2024)
Article
Chemistry, Inorganic & Nuclear
Bo-Han Wu, Xue Zhou, Lin Liu, Zheng-Bo Han
Summary: Researching carbon dioxide removal from flue gas and natural gas is crucial. Metal-organic frameworks (MOFs) are commonly used in adsorption due to their high surface area, porosity, and chemical properties. An ultra-microporous MOF CPM-20(Co) with mixed ligand was synthesized using inexpensive ligands. The material exhibited high selectivities and low regenerative energy, making it a promising option for CO2 separation in industries.
JOURNAL OF ORGANOMETALLIC CHEMISTRY
(2024)
