Review
Chemistry, Multidisciplinary
Fabian Schmidt, Mirza Cokoja
Summary: The paper presents an overview of supramolecular strategies for the epoxidation of hydrophobic olefins in water using phase transfer-controlling surfactants, with a focus on the rationale of phase transfer and the efficiency of catalyst recycling. The catalyst can be transferred to both the aqueous and organic phase depending on the surfactant type and reaction requirements. The comparison between these two concepts considers phase transfer type, supramolecular interactions between catalyst and surfactant, catalyst activity, and the potential for efficient and environmentally friendly catalyst recycling.
Article
Chemistry, Multidisciplinary
Emmanuelle Schulz
Summary: Chiral cobalt-salen complexes have been essential for many asymmetric catalytic reactions due to their extraordinary reactivity and mode of action, as well as the processes towards optimizing their cooperativity for bimetallic activation and effective immobilization. The inspiring works dedicated to the discovery of their new reactivity continue to contribute to the field.
Article
Chemistry, Multidisciplinary
Mariam Abd El Sater, Mohamed Mellah, Diana Dragoe, Emilie Kolodziej, Nada Jaber, Emmanuelle Schulz
Summary: This study reports the first immobilization of a pyrene-tagged chromium salen complex on reduced graphene oxide (rGO) through pi-pi noncovalent interactions, creating a robust catalytic system for asymmetric catalysis. The chiral chromium salen@rGO catalyst was found to maintain high activity and enantioselectivity in repeated cycles, demonstrating compatibility with multi-substrate use.
CHEMISTRY-A EUROPEAN JOURNAL
(2021)
Article
Chemistry, Physical
Hui Sun, Huijian Shang, Bin Cui
Summary: Asymmetric catalysis using a chiral (Salen)Mn(III) complex has been successfully applied to highly enantioselective intramolecular haloamination reactions of alkenes. Experimental results suggest that the polarization of the C5-C6 bond has a significant effect on the regioselectivity of the products.
Article
Chemistry, Inorganic & Nuclear
Marcello B. Solomon, Carol Hua, Bun Chan, Tamara L. Church, Seth M. Cohen, Clifford P. Kubiak, Katrina A. Jolliffe, Deanna M. D'Alessandro
Summary: The new metal-organic framework containing a Mn(ii) salen complex undergoes a reversible crystalline-to-amorphous transformation, and is stable to a one-electron reduction at more anodic potentials than the corresponding discrete complex, as supported by experimental studies and computational calculations.
DALTON TRANSACTIONS
(2021)
Article
Chemistry, Multidisciplinary
Anand B. Shabade, Dipesh M. Sharma, Priyam Bajpai, Rajesh G. Gonnade, Kumar Vanka, Benudhar Punji
Summary: Chemoselective hydrogenation of C=C, C=O and C=N bonds in alpha,beta-unsaturated ketones, aldehydes and imines can be achieved at room temperature using a well-defined Mn(I) catalyst and hydrogen gas. The method shows tolerance towards various sensitive functional groups and can be applied to unsaturated ketones containing indole, pyrrole, furan, thiophene, and pyridine moieties. In the reaction, the C=C bond is selectively hydrogenated, while the C=O and C=N bonds in aldehydes and imines are preferentially reduced.
Article
Chemistry, Physical
Andrea Pappalardo, Francesco P. Ballistreri, Rosa Maria Toscano, Maria Assunta Chiacchio, Laura Legnani, Giovanni Grazioso, Lucia Veltri, Giuseppe Trusso Sfrazzetto
Summary: Three new chiral Mn macrocycle catalysts were synthesized and tested in the enantioselective epoxidation reactions. The effect of a BINOL compound in the catalyst backbone was evaluated using Density Functional Theory (DFT) calculations.
Article
Chemistry, Multidisciplinary
Fabian Scharinger, Adam Mark Palvoelgyi, Melanie Weisz, Matthias Weil, Christian Stanetty, Michael Schnuerch, Katharina Bica-Schroeder
Summary: In this study, we propose a novel approach for various asymmetric transformations of cyclic enones. By optimizing the catalyst components, we have developed a particularly powerful and versatile organocatalyst that shows excellent stereocontrol. Furthermore, a simple change in the diamine's configuration allows access to both product antipodes.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Physical
Shanka Dissanayake, Ninad Vora, Laura Achola, Yanliu Dang, Junkai He, Zachary Tobin, Xingxu Lu, Anne Mirich, Pu-Xian Gao, Steven L. Suib
Summary: Mesoporous manganese doped cerium oxide catalysts prepared by inverse micelle method show superior activity in epoxidation of alkenes, with high conversion rate and selectivity. The high catalytic activity can be attributed to the specific fluorite crystal structure, high oxygen mobility, and the unique mechanism involving in situ generated reactive oxygen species.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Biochemistry & Molecular Biology
Anna S. Tovmasyan, Anna F. Mkrtchyan, Hamlet N. Khachatryan, Mary V. Hayrapetyan, Robert M. Hakobyan, Artavazd S. Poghosyan, Avetis H. Tsaturyan, Ela V. Minasyan, Victor I. Maleev, Vladimir A. Larionov, Armen G. Ayvazyan, Norio Shibata, Giovanni N. Roviello, Ashot S. Saghyan
Summary: A new family of Cu(II) and Ni(II) salen complexes was synthesized and characterized. These complexes were evaluated for their catalytic activity in the C-alpha-alkylation reaction of Schiff bases. It was found that introducing a chlorine atom into the phenyl ring of the substrate increased both the chemical yield and asymmetric induction. The highest enantiomeric excess was achieved using a Cu(II) salen complex based on (S,S)-cyclohexanediamine and salicylaldehyde at -20 degrees C. Bulky substituents in the ligand led to a decrease in both the enantioselectivity and chemical yield, with complete loss of stereoselectivity achieved with certain substituents at positions 3 and 5 of the phenyl ring.
Article
Chemistry, Multidisciplinary
Jonas Bruckmoser, Stefanie Pongratz, Lucas Stieglitz, Bernhard Rieger
Summary: We report a highly selective ring-opening polymerization (ROP) of racemic beta-butyrolactone (beta-BL) using catalysts based on Y-[N-(SiHMe2)(2)](3)(THF)(2) and salan-type pro-ligands. The catalyst system produces isotactic poly-(3-hydroxybutyrate) (PHB) with the highest isoselectivity (P (m) up to 0.89) and record productivity (TOF up to 32,000 h(-1)) achieved to date in ROP of beta-BL. Chemically synthesized PHB has advantageous material properties compared to bacterial PHB, including a lowered melting temperature (T (m) approximately 140°C) and reduced brittleness. The produced PHB exhibits promising polyolefin-like thermomechanical material properties with an elongation at break of 392%.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Multidisciplinary
Pooja Chaudhary, Geeta Devi Yadav, Krishna K. Damodaran, Surendra Singh
Summary: New chiral Mn(III)-salen complexes were synthesized and evaluated for the asymmetric epoxidation of styrene, showing high yields and promising catalytic activity; the recovered catalysts could be reused for multiple runs, demonstrating good stability and durability.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Yabing Tian, Chen Xing, Wenxiang Wang, Shiguo Zhang, Yan Zhang
Summary: A highly crosslinked mesoporous poly(ionic liquid) catalyst (SMPIL-Pd) was designed for Suzuki-Miyaura cross-coupling reactions, exhibiting excellent catalytic activity, stability, and recyclability.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Chemistry, Inorganic & Nuclear
Valentin Vaillant-Coindard, Florian Chotard, Benjamin Theron, Cedric Balan, Jerome Bayardon, Raluca Malacea-Kabbara, Ewen Bodio, Yoann Rousselin, Paul Fleurat-Lessard, Pierre Le Gendre
Summary: Ethylene- and phenylene-bridged bis-(salicylamidine) ligands can be easily synthesized from ethylene or phenylenediamine and iminium chloride derivatives. These complexes show catalytic activity in the controlled ring-opening polymerization of rac-lactide to generate poly(lactic acid) with slight isotactic bias.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Shiny Joseph Srinivasan, Sarah E. Cleary, Miguel A. Ramirez, Holly A. Reeve, Caroline E. Paul, Kylie A. Vincent
Summary: A new activity of the [NiFe] uptake hydrogenase 1 in Escherichia coli (Hyd1) was discovered, allowing direct reduction of the biological flavin cofactors FMN and FAD. The robust nature of Hyd1 was utilized for flavin reduction across a range of temperatures and reaction times, demonstrating potential for regenerating FMNH2 or FADH(2) and supporting asymmetric alkene reductions. High turnover frequencies and total turnover numbers were achieved during flavin recycling, showing the efficiency of this system.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Pharmacology & Pharmacy
Francisco Faisca, Vanessa Correia, Zeljko Petrovski, Luis C. Branco, Helena Rebelo-de-Andrade, Miguel M. Santos
Summary: The development of effective antiviral drugs against SARS-CoV-2 is urgently needed. This study demonstrates that ionic liquids of hydroxychloroquine show improved antiviral activity compared to the original drug. The findings pave the way for the development of novel formulations of hydroxychloroquine with enhanced properties.
Article
Chemistry, Physical
Hugo C. Novais, Bruno Jarrais, Ali Haider, Ulrich Kortz, Antonio Guerrero-Ruiz, Inmaculada Rodriguez-Ramos, Cristina Freire, Diana M. Fernandes
Summary: This study develops novel low-cost electrocatalysts with high electrocatalytic activity for fuel cells. The four composites prepared based on carbon materials show excellent electrocatalytic activity and tolerance in alkaline medium, with low Tafel slopes and good electrochemical stability.
Article
Chemistry, Physical
Karolina Zalewska, Isabel Pinto, Luis Cabrita, Malgorzata E. Zakrzewska, Joao P. Noronha, M. Nunes da Ponte, Luis C. Branco
Summary: Different Chiral Ionic Liquids (CIL) based on L-proline have been developed using simple and efficient synthetic methodologies. These CILs, with L-proline as a cation or anion combined with suitable counter-ions, were characterized to evaluate the influence of counter-ions on their properties. The most promising CILs were tested as chiral catalysts in asymmetric Michael addition reactions, achieving similar or even better conversions and enantioselectivities compared to L-proline, and showed good product extraction performance using supercritical CO2 processes.
Article
Chemistry, Multidisciplinary
Lidia A. S. Cavaca, Jaime A. S. Coelho, Susana D. D. Lucas, Rui M. S. Loureiro, Rafael F. A. Gomes, Carlos A. M. Afonso
Summary: In this study, a tunable continuous flow hydrogenation method was used to selectively and stepwise synthesize novel bifunctionalized cyclopentanones with high yields and selectivity. The stability studies of the diamino cyclopentanone motif also led to the development of an elimination procedure for the synthesis of corresponding alpha-enaminones. Deuteration of the cyclopentene scaffold and the sequential synthesis of alpha-enaminones directly from furfural were also demonstrated. The methodology presented in this study is of great significance for the synthesis of ATP-sensitive potassium channel agonists.
REACTION CHEMISTRY & ENGINEERING
(2023)
Article
Chemistry, Applied
Joao R. Vale, Milene A. G. Fortunato, Kessia H. S. Andrade, angelo M. R. Rocha, Carlos A. M. Afonso, Filipa Siopa
Summary: (-)-Agelastatin A was synthesized by a flow photorearrangement of a pyridinium salt, which enabled the one-step construction of the desired cyclopentene core with specific functionalities and relative configurations. The enantiopure precursor to the natural product was obtained through a flow enzymatic kinetic resolution of the resulting bicyclic vinyl aziridine. This total synthesis utilized a single protective group. Two novel agelastatin N3-derivatives were synthesized and their cytotoxicity against various cancer cell lines was evaluated, confirming the significance of unsubstituted N3 in the biological activity of (-)-agelastatin A.
ADVANCED SYNTHESIS & CATALYSIS
(2023)
Article
Biochemistry & Molecular Biology
Mario R. C. Soromenho, Carlos A. M. Afonso, Jose M. S. S. Esperanca
Summary: This study presents the design and synthesis of a series of photochromic gemini diarylethene-based ionic liquids (GDILs) with different cationic motifs. Various synthetic pathways were optimized to produce cationic GDILs with chloride as the counterion. These novel salts exhibit surprising water solubility and unexplored photochromic features, expanding their potential applications. The physicochemical properties of GDILs in aqueous and imidazolium-based ionic liquid (IL) solutions were investigated, revealing photoinducible changes in conductivity and other properties upon UV irradiation. The electronic and conformational changes associated with these innovative stimuli GDILs offer new opportunities for their use as photoswitchable materials.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Biochemistry & Molecular Biology
Antonio Barreira, Andreia F. M. Santos, Madalena Dionisio, Ana R. Jesus, Ana Rita C. Duarte, Zeljko Petrovski, Ana B. Paninho, Marcia G. Ventura, Luis C. Branco
Summary: In this study, ionic liquids were synthesized to improve the solubility of levothyroxine (T4), and [C(2)OHMiM][T4] was found to be a promising alternative with good bioavailability and no significant cytotoxicity observed against cells.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Agriculture, Multidisciplinary
Virginia Cruz Fernandes, Valentina F. Domingues, Marta S. Nunes, Renata Matos, Iwona Kuzniarska-Biernacka, Diana M. Fernandes, Antonio Guerrero-Ruiz, Inmaculada Rodriguez Ramos, Cristina Freire, Cristina Delerue-Matos
Summary: A new application of graphene-type materials combined with GC-ECD/GC-MS/GC-MS/MS detection was used for the simultaneous analysis of 12 brominated flame retardants in Capsicum cultivar samples. The materials showed good adsorption capability and did not compromise the extraction efficiency of target analytes. The developed method exhibited excellent recoveries, good linearity, and low limits of quantification.
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
(2023)
Article
Biochemistry & Molecular Biology
Mariana T. Donato, Jonas Deuermeier, Rogerio Colaco, Luis C. Branco, Benilde Saramago
Summary: The goal of this study was to develop new protic ionic liquids (PILs) as additives for lubrication of micro and nanoelectromechanical systems (MEMS and NEMS). Ten PILs with different combinations of cations such as [MIMH], [4-picH], [PyrH], [DBUH], and [TMGH], and anions such as [HSO4] and [MeSO3] were tested as additives in polyethylene glycol (PEG200) to lubricate steel/silicon and silicon/silicon contacts. The best performing additive was found to be [4-picH][HSO4], which formed a protective film on the silicon surface, resulting in a 15-fold reduction in wear compared to PEG200 alone.
Article
Chemistry, Organic
Rafael F. A. Gomes, Joao R. Vale, Juliana G. Pereira, Carlos A. M. Afonso
Summary: This research aims to synthesize naturally occurring compounds with biologically active aminocyclopentanes and prepare a versatile synthon for total synthesis with orthogonal protection of amines. Mixed trans-4,5-diaminocyclopentenones were formed by reacting furfural and two amines using Cu-(OTf)(2) as a catalyst. The selected amines can be selectively deprotected, enabling selective modification of amines on the cyclopentane core. The significance of this research is demonstrated by the successful total synthesis of highly complex (+/-)-Agelastatin A.
Article
Chemistry, Multidisciplinary
Diogo Inacio, Ana Lucia Pinto, Ana B. Paninho, Luis C. Branco, Sunny K. S. Freitas, Hugo Cruz
Summary: Five Covalent Organic Frameworks (COFs) were synthesized and tested as dyes and additives in Dye-Sensitized Solar Cells (DSSCs). These porous nanomaterials were made from commercially available ionic dyes and antibiotics, and the most promising COF, RIO-60, showed improved performance compared to previous COFs in similar devices. This research indicates the potential of using the RIO family for enhancing DSSCs and increasing their lifespan.
Article
Green & Sustainable Science & Technology
V. D. da Silva, K. Zalewska, Z. Petrovski, C. D. Buarque, L. C. Branco, P. M. Esteves
Summary: Wastewater pollution with micropollutants in low concentrations is a significant problem that conventional water and wastewater treatment methods struggle to resolve. Covalent Organic Frameworks (COFs), as porous materials, have shown great potential for application in separation processes and water purification due to their porosity, crystallinity, and stability. COFs have been used for the removal of various industrial pollutants in water and have demonstrated high selectivity in molecular separation. This review highlights the advancements and potential of COFs in water treatment and purification applications. (c) 2022 Elsevier Ltd. All rights reserved.
MATERIALS TODAY SUSTAINABILITY
(2023)
Article
Biochemistry & Molecular Biology
Andreia Forte, Sandra Gago, Celso Alves, Joana Silva, Joana Alves, Rui Pedrosa, Cesar A. T. Laia, Isabel M. Marrucho, Luis C. Branco
Summary: This study explores the formulation of magnetic ionic liquids (MILs) or organic salts based on lanthanides as anions. A set of choline-family-based salts, along with two other cation families, were combined with Gadolinium(III) and Terbium(III) anions. The magnetic moments of the lanthanides were found to be correlated with the structural features of the cation, and most of the prepared compounds were non-toxic to cells.
Article
Pharmacology & Pharmacy
Luis Filipe, Telma de Sousa, Dario Silva, Miguel M. Santos, Manuela Ribeiro Carrott, Patricia Poeta, Luis C. Branco, Sandra Gago
Summary: The combination of active pharmaceutical ingredients in the form of ionic liquids or organic salts (API-OSILs) with mesoporous silica nanoparticles (MSNs) as drug carriers can enhance the capabilities of current antibiotics, especially against resistant strains of bacteria. In this study, three nanomaterials based on the modification of MSN surface with different ionic liquids coupled with anionic ciprofloxacin were prepared. These materials showed no cytotoxicity and exhibited improved antibacterial activity against both resistant and sensitive strains of K. pneumoniae. One particular nanomaterial, [MSN-Chol][Cip], showed significant enhancement with a tenfold decrease in MIC against sensitive strains. The importance of this study is rated at 8 out of 10 for its potential application in combating antibiotic resistance.
Article
Chemistry, Inorganic & Nuclear
Hugo C. Novais, Bruno Jarrais, Israel-Martyr Mbomekalle, Anne-Lucie Teillout, Pedro de Oliveira, Cristina Freire, Diana M. Fernandes
Summary: This study focuses on the application of polyoxometalate-based electrocatalysts in the oxygen reduction reaction. The composites of polyoxometalate salt immobilized on graphene flakes and nitrogen-doped carbon nanotubes showed good ORR performance and stability.
Article
Chemistry, Inorganic & Nuclear
Angela Lis, Viorica Gladchi, Gheorghe Duca, Sergey Travin
Summary: This work presents studies on the photochemical transformations of TU and Cys with the addition of Cu(II) or Fe(III) ions. The results show that the oxidation rate of the thiols increases significantly when Cu(II) or Fe(III) ions are added to the system. It has also been found that TU and Cys can form stable complex compounds with the studied metal ions. The oxidation rates of the thiols are found to depend on the radiation intensity and emission spectrum of the irradiation sources.
INORGANICA CHIMICA ACTA
(2024)
Article
Chemistry, Inorganic & Nuclear
Cristiane F. A. Teixeira, Estefane I. Teixeira, J. P. C. Nascimento, M. Amilcar Junior, L. M. C. Pinto, Anderson R. L. Caires, G. B. Alcantara, Ana C. Micheletti, Victor M. Deflon, Davi F. Back, Heveline Silva, Lucas Pizzuti, Gleison Antonio Casagrande
Summary: Novel binuclear heteroleptic copper(I) complexes based on mixed DPPE/thiocarbamoyl-pyrazoline ligands were synthesized and structurally characterized. These complexes exhibited similar structural behavior around the Copper(I) atoms and showed promising antimicrobial and anticancer activities.
INORGANICA CHIMICA ACTA
(2024)
Article
Chemistry, Inorganic & Nuclear
Chen Chen, Li Liu, Xin-Xin Zhong, Fa-Bao Li, Hai-Mei Qin
Summary: Thermally activated delayed fluorescent (TADF) Cu(I) halide complexes with short lifetimes and intense emissions were synthesized and characterized. These complexes exhibit intense green to yellow-green delayed fluorescence and are suitable for OLED devices.
INORGANICA CHIMICA ACTA
(2024)
Article
Chemistry, Inorganic & Nuclear
Tian-Yu Zhang, Xue-Qian Wu, Heng-Yu Ruan, Yi Yuan, Le Wang, Ya-Pan Wu, Qing-Wen Han, Ruan Chi, Dong-Sheng Li
Summary: In this study, a novel Ni(II)-based metal-organic framework with good electrocatalytic oxidation performance was successfully synthesized, showing potential for direct alcohol fuel cells.
INORGANICA CHIMICA ACTA
(2024)
Article
Chemistry, Inorganic & Nuclear
Susanta Das Baishnab, R. N. Dutta Purkayastha, Waldemar Maniukiewicz, Rosa M. Gomila, Antonio Frontera
Summary: The synthesis, structure, and DNA binding ability of three decavanadate complexes containing cationic organic moieties were reported. The complexes were characterized by various techniques and their solid-state structures were analyzed. The complexes showed interesting assembly patterns and exhibited moderately strong intercalative binding with CTDNA. Additionally, their micellization behavior in the presence of the surfactant CTAB was studied.
INORGANICA CHIMICA ACTA
(2024)
Review
Chemistry, Inorganic & Nuclear
Jubaraj B. Baruah
Summary: Isomorphous series are generated by replacing atoms or molecules to form materials with similar compositions. They allow modulation of structure and properties, and generate equivalent compositions with novel material properties. The study of stereo-electronic aspects of different equivalent compositions can improve the utility of the original composition.
INORGANICA CHIMICA ACTA
(2024)
Article
Chemistry, Inorganic & Nuclear
Kamelah S. Al-Rashdi, Bandar A. Babgi, Ehab M. M. Ali, Bambar Davaasuren, Abdul-Hamid M. Emwas, Mariusz Jaremko, Mark G. Humphrey, Mostafa A. Hussien
Summary: Tridentate ligands were used to synthesize a set of palladium complexes, which were characterized and found to have DNA and BSA binding abilities. The complexes also showed differences in anticancer activities.
INORGANICA CHIMICA ACTA
(2024)
Article
Chemistry, Inorganic & Nuclear
Diane Isaacs, Chandler Cox, Mark A. Bezpalko, W. Scott Kassel, William G. Dougherty
Summary: The structure and electrochemical properties of zinc(II) complexes with a face-capping ligand have been investigated, revealing the effect of the ligand on bound semiquinonate (SQ) radicals. The substitution pattern of the SQ ring plays a crucial role in determining the fate of the bound SQ radicals. Additionally, the protective pocket formed by the ligand's phenyl substituents is unable to prevent decomposition of SQ radicals with minimal steric bulk, suggesting that substitution of the SQ ring is the main contributor to their stabilization.
INORGANICA CHIMICA ACTA
(2024)
Article
Chemistry, Inorganic & Nuclear
Xingliang Chen, Zhiqiang Jiang
Summary: Here, a series of zinc tetrahedral tetrazolate frameworks (Zn-TTFs) are presented, and it is demonstrated that rotation of carboxyl group can generate structural diversity. Compound 3 exhibits a unique zeolite-like structure, while compound 4 shows both super acid and alkali resistance.
INORGANICA CHIMICA ACTA
(2024)
Article
Chemistry, Inorganic & Nuclear
Ankita Puri, Allison Mcaninch, Sheng Shu, Khashayar Rajabimoghadam, Maxime A. Siegler, Marcel Swart, Isaac Garcia-Bosch
Summary: In this article, the synthesis and characterization of copper, nickel, and palladium complexes bound by bidentate ligands derived from ortho-phenylenediamine are described. The complexes contain tunable H-bond donors and their crystal structures reveal intramolecular H-bonding interactions between the ligand scaffolds. Variations in the coordination sphere led to the isolation of the complexes in square-planar or twisted pseudo-tetrahedral geometries. Structural analysis showed that intramolecular H-bonding interactions can be altered by disrupting the bonds between countercations, solvent of crystallization, and ligand scaffold, resulting in changes in the geometry of the complexes. DFT calculations confirmed that Cu complexes prefer twisted geometries while Ni and Pd complexes favor square-planar geometries.
INORGANICA CHIMICA ACTA
(2024)
Article
Chemistry, Inorganic & Nuclear
Laiane dos Santos Oliveira, Pedro Henrique de Souza Guarda, Leticia Bazilio Rosa, Gustavo Clauss Rodrigues, Daniele Daiane Affonso, Joao Ernesto de Carvalho, Igor Andrade Santos, Mark Harris, Douglas Hideki Nakahata, Jose Ricardo Sabino, Danilo Ciccone Miguel, Ana Lucia Tasca Gois Ruiz, Ana Carolina Gomes Jardim, Camilla Abbehausen
Summary: Chalcones are chemical precursors of flavonoids that have various biological properties. In this study, novel copper(II)-2'-hydroxy-4-benzyloxychalcone complexes were synthesized and evaluated for their antileishmanial, antiproliferative, and antiviral activities. The results demonstrated that these complexes showed potential effects against tumor cells, leishmania parasites, and SARS-CoV-2 virus. The study also highlighted the influence of ligand structure on biological activity.
INORGANICA CHIMICA ACTA
(2024)
Review
Chemistry, Inorganic & Nuclear
Archana Thakur, Harpreet Kaur, Vishal Tyagi
Summary: This review article discusses the findings of research on the 13C NMR spectra of di- and tri-butyltin carboxylates, highlighting the importance of 13C NMR chemical shifts in determining the chemical surroundings of carbon nuclei and their role in structure elucidation.
INORGANICA CHIMICA ACTA
(2024)
Article
Chemistry, Inorganic & Nuclear
Qiang Zhao, Qi-Yang Li, Zhi Shen, Guo Zang, Wen-Jun Lv
Summary: In this study, five metal complexes were synthesized using a solvothermal reaction and their structures were analyzed by single crystal X-ray diffraction. Fluorescence and magnetic properties of some complexes were also investigated.
INORGANICA CHIMICA ACTA
(2024)
Article
Chemistry, Inorganic & Nuclear
Jeremy Erb, Darcy Setter, Jake Swavey, Frederick Willits, Shawn Swavey
Summary: Three BODIPY-Ru(II) complexes were synthesized by coordinating [Ru(bpy)2Cl]+ complexes to BODIPY ligands. The spectroscopic and electrochemical properties of the complexes were characterized. The complexes exhibited intense absorption peaks due to the pi pi* transitions localized on the BODIPY core, and additional charge transfer transitions associated with the metal center. The complexes showed significant singlet oxygen generation and were able to induce photo-nicking of DNA.
INORGANICA CHIMICA ACTA
(2024)
Article
Chemistry, Inorganic & Nuclear
Sahin Reja, Dilip Sarkar, Kaushik Sarkar, Deboshmita Mukherjee, T. K. S. Fayaz, Palash Sanphui, Rajesh Kumar Das
Summary: A promising bioinspired metallocatalyst has been produced and characterized, showing high catalytic activity in oxygen dependant enzymatic radical pathway. The catalyst also exhibits inter and intra molecular H-bonding and C-H-pi interactions.
INORGANICA CHIMICA ACTA
(2024)