Review
Chemistry, Inorganic & Nuclear
Xiao Feng, Yanwei Ren, Huanfeng Jiang
Summary: The article reviews the recent research progress of M(bpy)/M(phen)-functionalized metal-organic frameworks (MOFs) and covalent organic frameworks (COFs), focusing on the synthetic strategies of these porous materials and their catalytic performances in thermocatalysis, photocatalysis and electrocatalysis.
COORDINATION CHEMISTRY REVIEWS
(2021)
Review
Plant Sciences
X. Lai, X. Yang, S. Rao, Z. Zhu, X. Cong, J. Ye, W. Zhang, Y. Liao, S. Cheng, F. Xu
Summary: This paper reviews and summarizes the physiological mechanism of selenium in enhancing heavy metal stress tolerance in plants. Selenium has an antagonistic effect on heavy metals by promoting the removal of reactive oxygen species and regulating the transportation and distribution of heavy metal ions in plants. It also reduces oxidative damage and the accumulation of heavy metal ions. Understanding the role of selenium in plant response to heavy metal stress is important for environmental remediation and agricultural development.
Article
Chemistry, Inorganic & Nuclear
E. S. Cakmakci, E. Subasi, E. Ozturk, A. Sahiner, B. Sen Yuksel
Summary: Metal(II) complexes including Co(II), Ni(II), Pd(II) and Zn(II) were synthesized and characterized. These complexes were obtained by reacting metal(II) chlorides with the ligand. The structures and properties of these complexes were determined by various characterization techniques including elemental analysis, FT-IR, 1H NMR, and single crystal X-ray diffraction.
INORGANICA CHIMICA ACTA
(2023)
Article
Biotechnology & Applied Microbiology
Jana Pekarkova, Imrich Gablech, Tatiana Fialova, Ondrej Bilek, Zdenka Fohlerova
Summary: This study focused on the modification of Parylene-C surfaces with selenium nanoparticles as antibacterial agents and tested the designed surfaces against bacterial pathogens and mesenchymal stem cells. The results showed a bacteriostatic effect on E. coli but no antibacterial effect on S. aureus, as well as cytotoxic effects on cells at high nanoparticle deposition. These findings provide valuable information for potential antibacterial treatment of Parylene-C in biomedicine.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2021)
Article
Chemistry, Inorganic & Nuclear
Jin Young Koo, Jongwon Oh, Gyeongeun Hyun, Hee Cheul Choi, Intek Song, Seok Min Yoon
Summary: A new oxo-bridged chromium-molybdenum heterometallic complex, O-CrMoHC, was synthesized by a solvothermal reaction. The complex exhibits anisotropic conductivity in single crystals, with higher electrical conductivity along the [01-1] direction compared to the [100] direction. This is the first report of anisotropic conductivity observed in a monomeric heterometallic complex single crystal.
INORGANIC CHEMISTRY
(2021)
Article
Chemistry, Physical
Mohamed Saeed El-Attar, Hassan Abdelfattah El-Sayed, Sadeek Atia Sadeek, Wael Abd-allah Zordok, Heba Magdy Kamal
Summary: Synthesized 5-cyano-6-phenyl-2-thiouracil (H2CPT) combined with trivalent (Cr(III), Fe(III)) and divalent (Co(II), Ni(II), Cu(II) Zn(II)) metal ions and 1,10-phenanthroline monohydrate (Phen), resulting in crystalline and semi-crystalline nanoparticles mixed ligand metal complexes. Various techniques were used to investigate the physicochemical and spectroscopic properties of the complexes, including FT-IR, UV-Vis, 1H NMR, XRD, and thermal analyses. The complexes exhibited ionic behavior and octahedral geometries, with semi-crystalline or crystalline nature depending on the metal ions. The complexes showed significant antibacterial and antifungal activity, with the Co(II) complex being the most effective.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Medicinal
Jing Liang, Dejuan Sun, Yueying Yang, Mingxue Li, Hua Li, Lixia Chen
Summary: This review explores the clinical potential of organometallic compounds as antimicrobial agents, summarizing common scaffolds and discussing therapeutic targets and risks to be aware of in future studies.
EUROPEAN JOURNAL OF MEDICINAL CHEMISTRY
(2021)
Article
Chemistry, Inorganic & Nuclear
Marc Hetzert, Qinqin Yuan, Wenjin Cao, Xue-Bin Wang, Jan Hempelmann, Richard Dronskowski, Uwe Ruschewitz
Summary: The reaction between Li2C2 and elemental selenium in liquid ammonia resulted in the formation of Li-2[SeC2Se] center dot 2NH(3). The crystal structure of this compound was determined using high-resolution synchrotron powder diffraction data. It was found to contain the unprecedented Se--C C-Se- anion, whose existence was confirmed through spectroscopic and theoretical analysis. Additionally, further investigations revealed the presence of the Se--C C-Se-center dot radical anion in the gas phase.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Applied
Saira Nayab, Shah Faisal, Waliullah Khan, Muhammad Ateeq, Sher Wali Khan, Eunhee Kim, Hyosun Lee
Summary: Cu (II), Zn (II), and Cd (II) complexes, [DEP(M)X-2], with a pyridine-derived Schiff-base ligand DEP, were synthesized. The complexes exhibited distorted square pyramidal and trigonal bipyramidal geometries. The DEP complexes showed superior antibacterial, fungicidal, and leishmanicidal inhibition potential compared to the free ligand. Additionally, the complexes exhibited high cytotoxicity against breast and colon carcinoma cells. The docking study confirmed the excellent inhibitory profile of [DEP (Cd)Br-2]. Overall, these complexes have the potential to be used in the development of new metal-derived candidates for the treatment of infectious diseases.
APPLIED ORGANOMETALLIC CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Sadig Aghazada, Dominik Munz, Frank W. Heinemann, Andreas Scheurer, Karsten Meyer
Summary: Iron methylidene species are important intermediates in the Fischer-Tropsch process and olefin cyclopropanation. In this study, an iron terminal methylidene complex has been characterized and its electronic structure validated. Computational analysis shows high Fe = CH2 bond covalency, considerable double bond order, and substantial alkylidene character in the complex.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Multidisciplinary Sciences
Josef T. Boronski, John A. Seed, David Hunger, Adam W. Woodward, Joris van Slageren, Ashley J. Wooles, Louise S. Natrajan, Nikolas Kaltsoyannis, Stephen T. Liddle
Summary: Actinide-actinide bonding is typically predicted to be weak and difficult to observe under normal conditions, but the experimental discovery of thorium-thorium bonding in a crystalline cluster has revealed a new type of sigma-aromatic bond that challenges previous theoretical predictions. This discovery extends delocalized sigma-aromatic bonding to the heaviest elements in the periodic table and offers a new approach to studying actinide-actinide bonding.
Article
Chemistry, Physical
Anfel Benhassine, Mohamed Imed Chouiter, Mounira Kara-Ali, Noreddine Kacem-Chaouche, Hocine Merazig, Ali Belfaitah
Summary: This study focuses on the synthesis and structural studies of four new divalent metal coordination complexes, as well as the assessment of their antimicrobial activity and antioxidant potential.
JOURNAL OF MOLECULAR STRUCTURE
(2023)
Review
Chemistry, Multidisciplinary
Anyi Zheng, Tonghan Zhao, Xue Jin, Wangen Miao, Pengfei Duan
Summary: Circularly polarized luminescence (CPL)-active materials have attracted attention for their wide applications, but there is a trade-off between the luminescence dissymmetry factor and luminescence quantum yield. Chiral porous crystalline nanomaterials (PCNMs) have shown potential for solving this problem and achieving functional CPL-active materials.
Article
Chemistry, Inorganic & Nuclear
Yao Tan, Yan Lei
Summary: Five new copper(II), nickel(II), and zinc(II) complexes were successfully synthesized and characterized. The structural analysis revealed that the copper complexes were tetranuclear, the nickel complexes were trinuclear, and the zinc complex was mononuclear. Biological studies showed that the copper and zinc complexes exhibited significant antimicrobial activity against both gram-positive and gram-negative bacteria.
Article
Chemistry, Physical
Madalina M. Hrubaru, Emeric Bartha, Anthony C. Ekennia, Sunday N. Okafor, Carmellina Daniela Badiceanu, David Agwu Udu, Damian C. Onwudiwe, Sergiu Shova, Constantin Draghici
Summary: A potassium salt of N,N-bis(3,3-dimethyl-allyl)-dithiocarbamate has been synthesized and its Ni(II), Pt(II) and Pd(II) metal complexes were prepared. The metal complexes showed significant antimicrobial activity, indicating a potential direction for the development of new antimicrobial agents.
JOURNAL OF MOLECULAR STRUCTURE
(2022)
Article
Chemistry, Applied
Camila Marina Verdi, Vanessa Schopf Machado, Alencar Kolinsk Machado, Bruna Klein, Pauline Cordenonsi Bonez, Eduardo Nascimento Correa de Andrade, Grazielle Rossi, Marli Matiko Campos, Roger Wagner, Michele Rorato Sagrillo, Roberto Christ Vianna Santos
Summary: This study is the first to relate cytogenotoxicity with oxidative metabolism and antimicrobial activity of Gaultheria procumbens essential oil. The results showed that the essential oil has promising potential for developing future formulations to treat infections caused by microorganisms, as it exhibited effective inhibition and killing of various microorganisms.
NATURAL PRODUCT RESEARCH
(2022)
Article
Chemistry, Inorganic & Nuclear
Felipe Dornelles da Silva, Artur Luis Hennemann, Robert Alan Burrow, Ernesto Schulz Lang, Ulrich Abram, Sailer Santos dos Santos
Summary: This study investigated the synthesis and structural characterization of six new [HgTe]-based cluster compounds derived from bis(2-pyridyl)ditellane and different mercury salts. Various techniques, including single-crystal X-ray diffraction and FT-IR spectroscopy, were used to study the compounds, and their optical properties were evaluated by solid-state UV-Vis diffuse reflectance spectroscopy. The results showed a strong dependence of the optical properties on the core structure's size and composition, with smaller core structures presenting larger energy gap values.
JOURNAL OF CLUSTER SCIENCE
(2022)
Article
Chemistry, Applied
Vanessa Schopf Machado, Camila Marina Verdi, Grazielle Guidolin Rossi, Larissa Ilha de Souza, Cristiane Antunes Teixeira, Marina Lopes Machado, Tassia Limana da Silveira, Michele Rorato Sagrillo, Alencar Kolinski Machado, Rafaela Castro Dornelles, Marli Matiko Campos, Eliseu Rodrigues, Tatiana Emanuelli, Sabrina Somacal, Roberto Christ Vianna Santos
Summary: Achyrocline flaccida aqueous extract contains mainly flavonoids, which exhibit protective effects against oxidative stress and antimycobacterial activity without toxicity. The study suggests that this extract has potential as a new phytotherapeutic drug against clinically relevant mycobacteria.
NATURAL PRODUCT RESEARCH
(2022)
Article
Chemistry, Multidisciplinary
Mariana Leticia Munin Camargo, Cristiane Storck Schwalm, Tanize Bortolotto, Natalia de Freitas Daudt, Grazielle Guidolin Rossi, Marli Matiko Anraku de Campos, Kaique Alexandre D'Oliveira, Alexandre Cuin, Vania Denise Schwade
Summary: The study reports the reaction between 2-(2-furyl)-3-hydroxychromone and nicotinoyl chloride producing a new neutral ligand (L) and its application in coordination compounds. The researchers analyzed the polymorphism, fluorescence properties of the ligand, and the characteristics of its coordination with metal ions. Additionally, photocatalysts preparation and biological tests with mycobacterial strains were conducted.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Immunology
Fallon dos Santos Siqueira, Josieli Demetrio Siqueira, Laura Bedin Denardi, Kelly Schneider Moreira, Thiago Augusto Lima Burgo, Lenice de Lourenco Marques, Alencar Kolinski Machado, Carolina Bordin Davidson, Otavio Augusto Chaves, Marli Matiko Anraku de Campos, Davi Fernando Back
Summary: Antibiotic resistance associated with pulmonary infection agents is a pressing public health concern. The synthesis of molecules from pre-existing drugs has shown promise in increasing therapeutic options against resistant microorganisms.
MICROBIAL PATHOGENESIS
(2023)
Article
Chemistry, Multidisciplinary
Thiago Anjos, Elba L. L. Gutterres, Daniela A. A. Barancelli, Roberta Cargnelutti, Benhur Godoi, Thiago Barcellos, Ricardo F. F. Schumacher
Summary: A synthetic method for organochalcogen-functionalized chromenones has been developed using diorganyl dichalcogenides and alkynyl aryl ketones. Selectfluor(R) mediates the cyclization/organochalcogenation reactions under mild and open-to-air conditions. The versatile methodology allows for the synthesis of organochalcogen-substituted thiochromenone and isocromenone derivatives.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Biotechnology & Applied Microbiology
Lucas M. M. Oliveira, Fallon S. S. Siqueira, Michelle T. T. Silva, Jose V. C. Machado, Cleydson F. F. Cordeiro, Livia F. Diniz, Marli M. A. Campos, Lucas L. L. Franco, Thiago B. B. Souza, Jamie A. A. Hawkes, Diogo T. T. Carvalho
Summary: Molecular hybridisation, a well-known technique in pharmaceutical research, has been used to create novel hybrid compounds by combining known pharmacophoric subunits. This study focused on the development of molecular hybrids based on eugenol and chloramphenicol pharmacophores, and evaluated their antimicrobial potential. The results showed significant improvement in the antimicrobial activity of the hybrid compounds against multidrug-resistant Pseudomonas aeruginosa, methicillin-resistant Staphylococcus aureus (MRSA), and rapidly growing mycobacteria.
FOLIA MICROBIOLOGICA
(2023)
Review
Chemistry, Physical
Ricardo H. Bartz, Luiz H. Dapper, Jean C. Kazmierczak, Ricardo F. Schumacher, Gelson Perin, Samuel Thurow, Filipe Penteado, Eder J. Lenardao
Summary: This review provides an overview of recent advances in photocatalyzed reactions for the formation of carbon-sulfur and carbon-selenium bonds. The authors present a comprehensive update on the state of the art in the light-induced synthesis of organochalcogen compounds from 2019 to present, with a total of 136 references and 81 cited articles. The discussion covers topics such as direct sulfenylation of C-C p-bonds to synthesize sulfides, sulfone synthesis, activation of C-sp2-N bond for C-sp2-S bond formation, thiol ester/thioether/thioacetal synthesis, and organoselenium compound synthesis, with detailed reaction conditions and selected examples for each protocol.
Article
Chemistry, Multidisciplinary
Andrei Lucca Belladona, Marina Cardoso Dilelio, Roberta Cargnelutti, Thiago Barcellos, Claudio Cruz Silveira, Ricardo Frederico Schumacher
Summary: A mild and regioselective method for the direct selenylation of 4-(N-substituted-amino)-2H-chromen-2-ones using Selectfluor (R) and diorganyl diselenides has been developed. The reactions were conducted under metal-free conditions at room temperature under air using NaHCO3 as a mild base. This approach provides a wide substrate scope and excellent yields of 3-selenyl-4-(N-substituted-amino)-2H-chromen-2-ones.
Article
Chemistry, Multidisciplinary
Felipe Dornelles da Silva, Maximilian Roca Jungfer, Adelheid Hagenbach, Ernesto Schulz Lang, Ulrich Abram
Summary: The zwitterionic compounds, such as pyridine-containing tellurenyl compounds, are versatile building blocks for heterometallic assemblies. Reactions of these compounds with the rhenium(V) complex result in the formation of [ReO2Cl(pyTeCl)(PPh3)(2)] and [ReO2Cl(CF(3)pyTeCl)(PPh3)(2)], which exhibit elongated Re-O bonds and Te-O contacts. The oxidation states of the metal ions are ambiguous, and DFT calculations suggest the formation of a Re(V) dioxide complex donating into an organotellurium(II) chloride.
CHEMISTRY-SWITZERLAND
(2023)
Article
Chemistry, Physical
Rafael F. N. Quadrado, Thiago A. L. Burgo, Thaise D. Fussinger, Grazielle G. Rossi, Marli M. A. de Campos, Bernardo A. Iglesias, Andre R. Fajardo
Summary: Responsive materials combining photo-responsive molecules and polysaccharides can be utilized for controlled drug delivery using light as an external stimulus. In this study, a light-responsive hybrid film of Ca2+-cross-linked alginate (ALG) and 3-PtTPyP was developed for drug delivery. The film exhibited light-induced weight loss due to the degradation of ALG matrix by reactive oxygen species generated by the photo-excited 3-PtTPyP, enabling controlled release of hydrocortisone (HC). The hybrid film also demonstrated photodynamic action against mycobacteria strains, suggesting its potential applications in antibacterial photodynamic therapy.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Immunology
Igor Rodrigues Lapa, Fallon dos Santos Siqueira, Cleydson Finotti Cordeiro, Marli Matiko Anraku de Campos, Rudy Bonfilio, Livia de Figueiredo Diniz, Gabriella Martiniano Pereira, Jamie Anthony Hawkes, Lucas Lopardi Franco, Diogo Teixeira Carvalho
Summary: This study reports the synthesis of a range of eugenol/dihydroeugenol-piperazine derivatives and their antimicrobial activity. The synthesized compounds showed high antimicrobial activity, especially against Gram-negative bacteria and multidrug-resistant strains.
MICROBIAL PATHOGENESIS
(2023)
Article
Chemistry, Multidisciplinary
Joao M. Anghinoni, Sabrina S. S. Ferreira, Ricardo F. F. Schumacher, Bernardo A. A. Iglesias, Gelson Perin, Filipe Penteado, Eder J. J. Lenardao
Summary: Benzeneseleninic acid (BSA) derivatives were used as a convenient source of Se(ii)-based electrophiles for the formation of C-Se bonds via thermal decomposition. The reaction with 2-substituted imidazopyridines resulted in the synthesis of 3-selanylimidazopyridines. A total of thirty-four derivatives were prepared, with seventeen of them being previously unreported. The reaction protocol is simple and efficient, yielding only H2O and diaryl diselenide as by-products, which can be easily recovered and reused.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Inorganic & Nuclear
Andressa Lunardi, Tanize Bortolotto, Camila Nunes Cechin, Natalia de Freitas Daudt, Melina de Azevedo Mello, Sailer S. dos Santos, Roberta Cargnelutti, Ernesto Schulz Lang, Barbara Tirloni
Summary: This study synthesized two novel coordination polymers and immobilized them onto TiO2 for photocatalytic hydrogen production. Among them, compound 1 exhibited promising catalytic activity and was considered as a promising TiO2 photosensitizer.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Multidisciplinary
Felipe Dornelles da Silva, Tanize Bortolotto, Barbara Tirloni, Natalia de Freitas Daudt, Ernesto Schulz Lang, Roberta Cargnelutti
Summary: Three new coordination compounds were synthesized by the reactions of bis(2-pyridypditellane) with cobalt salts and copper salt. These compounds exhibit different coordination modes and properties. Compounds 1 and 2 show potential as effective photosensitizers for hydrogen evolution from water splitting.
NEW JOURNAL OF CHEMISTRY
(2022)
