Article
Chemistry, Inorganic & Nuclear
Diana Aleksanyan, Svetlana G. Churusova, Ekaterina Yu Rybalkina, Zinaida S. Klemenkova, Gleb L. Denisov, Vladimir A. Kozlov
Summary: New ditopic pincer ligands with an oxalamide core and phosphorus(V) pendant arms were successfully synthesized by reacting ortho-(thio)phosphorylated anilines with oxalyl chloride. The thiophosphoryl-functionalized ligand could undergo direct cyclometalation to form the desired Re(I) pincer complex, while the phosphoryl-containing ligand led to a complex mixture of products.
Article
Chemistry, Inorganic & Nuclear
Silvia Schoch, Mouna Hadiji, Sarah A. P. Pereira, M. Lucia M. F. S. Saraiva, Simona Braccini, Federica Chiellini, Tarita Biver, Stefano Zacchini, Guido Pampaloni, Paul J. Dyson, Fabio Marchetti
Summary: A series of bioactive molecules were synthesized through condensation reactions, leading to novel diiron complexes with bridging vinyliminium ligands. These complexes showed high potency and selectivity in cytotoxicity assays, triggering intracellular ROS production. Further studies on DNA alkylation and protein binding were also conducted.
Article
Chemistry, Inorganic & Nuclear
Xiao-Li Gu, Bo Jin, Xiao Tan, Pei-Hua Zhao
Summary: A new aminophosphine-substituted diiron oxadithiolate complex and its reference analogue were synthesized and characterized, with investigations on their protonation and electrochemistry properties in the presence of strong and weak acids. The study revealed that the complexes exhibited reactivity towards the strong acid but not the weak acid, and they showed potential as active biomimetic electrocatalysts for proton reduction to hydrogen.
INORGANIC CHEMISTRY COMMUNICATIONS
(2021)
Article
Chemistry, Inorganic & Nuclear
Ariana Z. Spentzos, Sam R. May, Alex M. Confer, Michael R. Gau, Patrick J. Carroll, David P. Goldberg, Neil C. Tomson
Summary: This article focuses on the synthesis, characterization, and reactivity of a series of C (3v )-symmetric diiron complexes. The complexes were studied using various techniques, including crystallography, spectroscopy, and computation. The redox behavior of the complexes revealed that oxidation is localized to one metal center (Fe-C), and S-atom transfer chemistry led to the formation of Fe4S and Fe4S2 products. Treatment of the neutral complex with Ph3SH resulted in the formation of Fe4S x clusters.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Devender Singh, Brian J. Knight, Vincent J. Catalano, Ricardo Garcia-Serres, Vincent Maurel, Jean-Marie Mouesca, Leslie J. Murray
Summary: Researchers report a method to couple two CO molecules using a diiron complex, enabling the synthesis of synthetic carbon-neutral fuels. The complex mediates weak exchange interactions with ketenylidene, allowing for changes in spin states and coupling schemes based on DFT calculations, Mossbauer and EPR spectroscopy.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Johannes Karges, Miriam A. Giardini, Olivier Blacque, Brendon Woodworth, Jair L. Siqueira-Neto, Seth M. Cohen
Summary: Functionalized Re(i) tricarbonyl complexes were synthesized and found to inhibit the activity of the SARS-CoV-2 main protease, presenting a potential antiviral strategy.
Article
Chemistry, Inorganic & Nuclear
Basvaraj S. Kote, Harish S. Kunchur, Latchupatula Radhakrishna, Madhusudan K. Pandey, Maravanji S. Balakrishna
Summary: The synthesis of a triazole appended dinucleating bisphosphine and its coinage metal complexes were described, including dimeric copper complexes, hetero-cubane silver complex, disilver complexes, dinuclear acetate bridged silver complex, and digold complex. The molecular structures of these complexes were confirmed by single crystal X-ray analysis, showing non-covalent interactions between copper and C-arene.
DALTON TRANSACTIONS
(2021)
Article
Chemistry, Organic
Siwei Wang, Chaochao Xie, Yu Zhu, Guofu Zi, Zhanbin Zhang, Guohua Hou
Summary: An efficient Ni-(S,S)-Ph-BPE complex has been developed for the asymmetric hydrogenation of cyclic N-acyl hydrazones, leading to the formation of various chiral cyclic hydrazines with high yields and enantioselectivities of over 99%. The hydrogenation reaction can proceed smoothly on a gram scale with low catalyst loading (S/C = 3000) without a decrease in enantioselectivity, and it can be applied to the asymmetric synthesis of a RIP-1 kinase inhibitor.
Article
Chemistry, Organic
Zi-Qi Hu, Xiang Li, Li-Xia Liu, Chang-Bin Yu, Yong-Gui Zhou
Summary: A concise and effective ruthenium-catalyzed asymmetric transfer hydrogenation was developed for the synthesis of cis-beta-substituted alpha-hydroxybutyrolactone derivatives with excellent yields and selectivities. This one-step reaction can construct two consecutive stereogenic centers and be scaled up without loss of activity. Additionally, the reductive products can be easily converted into useful building blocks.
JOURNAL OF ORGANIC CHEMISTRY
(2021)
Article
Chemistry, Inorganic & Nuclear
Chiara Zappelli, Gianluca Ciancaleoni, Stefano Zacchini, Fabio Marchetti
Summary: In this study, the authors investigated the reactions of [Fe2Cp2(CO)(mu-CO){mu-eta 1:eta 3-C gamma(Fc)-C beta HC alpha(CN)NMe2}] complex with isocyanides (CNR). They were able to characterize and understand the structure and properties of the resulting products.
Article
Chemistry, Physical
Tian-Hong Jing, Kai-Chun Zhao, Guang-Hui Shi, Yi-Ying Zhuang, Xiao-Chao Chen, Xiao-Li Zhao, Yong Lu, Ye Liu
Summary: A series of bis-P,O-hybrid ligands were synthesized and characterized. The crystal structures showed that the ligand of L2 acted as a typical trans-positioned diphosphine as observed in the complexes Pd(L2)(OAc)2 and Pd(L2)Cl2, but also potentially as a P,P,O-tripodal pincer. Under mild conditions, L2 enabled Pd(OAc)2 to exhibit remarkable performance in the alkoxycarbonylation of vinyl arenes with high activity and excellent regioselectivity.
JOURNAL OF CATALYSIS
(2023)
Article
Chemistry, Inorganic & Nuclear
Giulio Bresciani, Silvia Schoch, Lorenzo Biancalana, Stefano Zacchini, Marco Bortoluzzi, Guido Pampaloni, Fabio Marchetti
Summary: In this study, four iron complexes were synthesized and characterized using various analytical and spectroscopic techniques. Compound 3, with a multidentate alkylidene-alkene ligand, was found to be less stable than its geometric isomer 4 by 13.4 kcal mol(-1), and complete conversion to 4 was achieved by refluxing a THE solution of 3 for 2 hours.
DALTON TRANSACTIONS
(2022)
Article
Chemistry, Multidisciplinary
Juan F. Torres, Collin H. Oi, Ian P. Moseley, Nabila El-Sakkout, Brian J. Knight, Jason Shearer, Ricardo Garcia-Serres, Joseph M. Zadrozny, Leslie J. Murray
Summary: Dinitrogen coordination is crucial for both the Haber-Bosch process and nitrogenase enzymes. While the latter use high-spin metal centers, iron-dinitrogen coordination chemistry is dominated by low-valent states.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Multidisciplinary
Joseph P. Tassone, Jihyeon Yeo, Jonathan A. Ellman
Summary: A series of carbon alpha-quaternary aldehydes are synthesized via Co(iii)-catalysed reactions, representing a rare example of intermolecular carboformylation. Various internally substituted dienes can be used as substrates, leading to complex alpha-quaternary aldehyde products. Mechanistic investigations on the catalytic cycle and the role of an effective additive have been conducted.
Article
Chemistry, Inorganic & Nuclear
Duc Hanh Nguyen, Delphine Merel, Nicolas Merle, Xavier Trivelli, Frederic Capet, Regis M. Gauvin
Summary: Neutral and ionic ruthenium and iron aliphatic (PNP)-P-H-type pincer complexes with benzyl, n-butyl or tert-butyl isocyanide ancillary ligands have been prepared and characterized. The ruthenium complexes are active in acceptorless alcohol dehydrogenative coupling reactions, with 3a-c showing higher initial activity.
DALTON TRANSACTIONS
(2021)
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)