Article
Crystallography
Yousef Hijji, Rajeesha Rajan, Hamdi Ben Yahia, Said Mansour, Abdelkader Zarrouk, Ismail Warad
Summary: The water-soluble Glucose amine Schiff base (GASB-1) product was synthesized using mono-mode microwave heating, with a reaction time of 5 minutes and a 90% yield without any byproducts. The 3D structure of GASB-1 was determined through single crystal X-ray diffraction and computations, followed by various analyses of its properties.
Article
Chemistry, Physical
Yan-Ping Jiao, Li-Song Zhang, Chong Chen, Li-Hua Tang, Yao Cheng, Ai-Quan Jia, Qian-Feng Zhang
Summary: Four acac ruthenium precursors and their derivatives with chiral Schiff bases have been synthesized and characterized. The structures of these compounds have been determined by single-crystal X-ray diffraction. The catalytic property of these compounds for the cyclopropanation of styrene has been presented.
JOURNAL OF MOLECULAR STRUCTURE
(2023)
Article
Chemistry, Physical
Yousef Hijji, Ellis Benjamin, Ray Butcher, Abdelkader Zarrouk, Ismail Warad
Summary: The study successfully synthesized a N-S-N tridentate ligand under non-classical microwave conditions with high yield and short reaction time. The structure of the ligand was confirmed using various analytical techniques, and its properties were further investigated using density functional theory.
JOURNAL OF MOLECULAR STRUCTURE
(2021)
Article
Biochemistry & Molecular Biology
Yingqi Mi, Qing Li, Qin Miao, Wenqiang Tan, Jingjing Zhang, Zhanyong Guo
Summary: Chitosan derivatives modified with Schiff base bearing benzenoid/heterocyclic moieties were successfully prepared via amidation reaction. The introduction of functional groups greatly enhanced the antifungal and antioxidant activities of the derivatives, making them potential biomaterials for anti-fungal and antioxidant applications.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2022)
Article
Chemistry, Inorganic & Nuclear
Daqing Chen, Chenghui Han
Summary: Salen ligand L1 reacts with Ru-3(CO)(12) to form two complexes: a normal cis-beta-[Ru-II(salen)(L1)(CO)(2)] complex and a novel alkoxo-bridged dinuclear ruthenium schiff-base complex. The structures of both complexes have been determined by X-ray structure analysis. The dinuclear ruthenium complex is an efficient catalyst for intramolecular cyclopropanation of trans-alkenes.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Crystallography
Babak Mirtamizdoust, Amirhossein Karamad, Negin Rahmani, Younes Hanifehpour, Sang Woo Joo
Summary: This study focuses on the synthesis, characterization, and properties of a yellowish, prism-shaped ligand. The ligand was synthesized by refluxing 1,5-diaminonaphthalene and pyridine-2-carbaldehyde in extra-pure ethanol, and its crystal structure was confirmed using X-ray diffraction. Computational spectroscopy and theoretical methods were used to investigate the ligand's electronic properties, and a Hirshfeld analysis was performed to study noncovalent interactions in the crystal form. The study provides valuable insights into this unique ligand.
Article
Chemistry, Physical
Yan-Ping Jiao, Hao-Yu Shi, Wen-Yan Zhou, Ai-Quan Jia, Hua-Tian Shi, Qian-Feng Zhang
Summary: In this study, various ferrocenoyl enaminone ligands with different dentate structures were synthesized. Their properties were characterized using multiple analytical techniques, and the molecular structures of some ligands were determined by X-ray crystallography.
JOURNAL OF MOLECULAR STRUCTURE
(2022)
Article
Polymer Science
Xiaoling Xu, Tianheng Wang, Die Li, Chunyang Bao, Yan Wang, Jingyu Zhang, Bin Peng, Mei Hong, Jing Chen, Qiang Zhang
Summary: Tripodal heptadentate amine ligands, Py3H3Tren and Py3Me3Tren, were used for atom transfer radical polymerization (ATRP). The coordination between the ligands and CuBr2 was investigated using electrospray ionization mass spectrometry, and tripod claw-shaped complexes were found. CuBr2/Py3H3Tren showed a more negative redox potential and higher reactivity. The order of KATRP of CuBr2/ligand was Py3H3Tren > Py3Me3Tren > Py3Tren. CuBr2/Py3H3Tren and CuBr2/Py3Me3Tren were used as catalysts for the ATRP of MA, producing well-defined polymers with controlled molecular weight. CuBr2/Py3Me3Tren showed the fastest reaction rate. Photo-induced ATRP using Py3H3Tren and Py3Me3Tren as ligands was also performed, with Py3H3Tren showing the fastest reaction rate and Py3Me3Tren producing polymers with lower polydispersity.
EUROPEAN POLYMER JOURNAL
(2022)
Article
Biochemistry & Molecular Biology
Ling-Yi Shen, Xiao-Li Chen, Xian-Jiong Yang, Hong Xu, Ya-Li Huang, Xing Zhang, Carl Redshaw, Qi-Long Zhang
Summary: A novel turn-on fluorescence probe L has been designed with high selectivity and sensitivity for the quantification of Zn2+, with a detection limit of 9.53 x 10(-8) mol/L. Experimental results showed a 1:1 stoichiometric ratio of the complex formed by L and Zn2+, and strong quenching behavior was observed when Cu2+ displaced Zn2+ to coordinate with probe L.
Article
Chemistry, Inorganic & Nuclear
Tao Jiang, Ling-Chan Tian, Xing-Jun Mo, Dong-Mei Chen, Chao Huang, Bi-Xue Zhu, Chun Zhu
Summary: A new 2,2'-bipyridyl hydrazone Schiff base ligand was synthesized to obtain four novel complexes via the solvent evaporation method. The X-ray analytical results revealed diverse architectures of the complexes influenced by the spacer ligands and metal ions. Further investigations were conducted on the thermogravimetric analysis, DFT calculations, luminescence properties, and electrochemical studies of the complexes.
Article
Crystallography
Uwe Bohme, Sabine Fels
Summary: The title compound was synthesized by reacting the Schiff base ligand N-(2-hydroxy-1-naphthylidene)leucine with dichlorodimethylsilane in the presence of triethylamine as base. The resulting pentacoordinate silicon complex was characterized by various spectroscopic methods and confirmed by single-crystal X-ray diffraction analysis, revealing its monoclinic crystal structure.
Article
Chemistry, Physical
Shuxian Yu, Chuan Li, Shuhua Fan, Juan Wang, Lu Liang, Min Hong
Summary: Three new organotin(IV) complexes have been synthesized by reacting organotin(IV) chlorides with Schiff base carboxylic acid ligand. The complexes were characterized and evaluated for their structural features and cytotoxicities. The results showed that the di-n-butyltin(IV) and triphenyltin(IV) complexes exhibited higher cytotoxicities, possibly due to the generation of intracellular reactive oxygen species (ROS).
JOURNAL OF MOLECULAR STRUCTURE
(2022)
Article
Chemistry, Physical
Shan-Xian He, Huan-Huan Yu, Chao Huang, Dong-Mei Chen, Bi-Xue Zhu
Summary: Two reduced Schiff base ligands (L-1 and L-2) were synthesized from two Schiff base compounds containing pyridine-2,6-dicarboxamide skeletons. In the presence of Zn(II) or Ag(I) ions, five complexes were synthesized and characterized. The structural differences of the complexes reveal two different configurations of the ligands in coordination with metal ions. Furthermore, the Ag(I) complexes exhibit good inhibiting effects against M. grisea and S. sclerotiorum.
JOURNAL OF MOLECULAR STRUCTURE
(2023)
Article
Chemistry, Inorganic & Nuclear
Janusz Gregolinski, Katarzyna Slepokura, Julia Ktak, Maciej Witwicki
Summary: In this study, a series of hexanuclear chloride and sulfate Ni(II) and Cu(II) complexes were successfully synthesized from appropriate metal salts and octadecaaza macrocyclic ligands. The obtained coordination compounds were characterized using various methods, including elemental analysis, spectroscopic methods, magnetic measurements, and X-ray crystallography. The X-ray crystal structures revealed different coordination modes of the metal cations in the obtained coordination compounds. The folding conformation of the macrocyclic ligand depended on the number of metal cations bound within the macrocycle. All Ni(II) and Cu(II) coordination compounds exhibited paramagnetic behavior. The magnetic measurements showed that the magnetic behavior of certain complexes was dominated by the magnetic anisotropy of the metal ion, while others revealed small antiferromagnetic interactions within the metal units. The EPR experiments indicated that the predominant contribution to the orbitals occupied by the unpaired electrons in the ground state originated from d(x2-y2) orbitals.
DALTON TRANSACTIONS
(2022)
Review
Chemistry, Multidisciplinary
Oskar G. Wood, Chris S. Hawes
Summary: This article summarizes the important role of azolate-containing ligands in the development of water-stable metal-organic frameworks and related materials, and explores the potential of fused ring analogues as anionic bridging ligands. The article introduces two design approaches and highlights the key features that the ideal compact and stable heterocyclic linker in functional metal-organic frameworks may possess.
Article
Chemistry, Inorganic & Nuclear
Kevin I. Y. Ketchemen, Sixberth Mlowe, Linda D. Nyamen, Ahmed A. Aboud, Matthew P. Akerman, Peter T. Ndifon, Paul O'Brien, Neerish Revaprasadu
INORGANICA CHIMICA ACTA
(2018)
Article
Chemistry, Inorganic & Nuclear
Muhammed Bilaal Ismail, Irvin Noel Booysen, Matthew Piers Akerman
INORGANICA CHIMICA ACTA
(2018)
Article
Electrochemistry
Charles Gervas, Malik Dilshad Khan, Sixberth Mlowe, Chunyang Zhang, Chen Zhao, Ram K. Gupta, Matthew P. Akerman, Philani Mashazi, Tebello Nyokong, Neerish Revaprasadu
Article
Biochemistry & Molecular Biology
Muhammed Bilaal Ismail, Irvin Noel Booysen, Matthew Piers Akerman
NUCLEOSIDES NUCLEOTIDES & NUCLEIC ACIDS
(2019)
Article
Chemistry, Applied
Siyabonga Zulu, Mohd. G. Alam, Stephen O. Ojwach, Matthew P. Akerman
APPLIED ORGANOMETALLIC CHEMISTRY
(2019)
Article
Chemistry, Inorganic & Nuclear
Sixberth Mlowe, Ginena B. Shombe, Matthew P. Akerman, Egid B. Mubofu, Paul O'Brien, Philani Mashazi, Tebello Nyokong, Neerish Revaprasadu
INORGANICA CHIMICA ACTA
(2019)
Review
Chemistry, Medicinal
Sanam Maikoo, Daniel Makayane, Irvin Noel Booysen, Phikelelani Ngubane, Andile Khathi
Summary: Type 2 diabetes mellitus is a chronic metabolic disorder that globally causes millions of deaths annually. Current conventional therapy and organic therapeutic pharmaceuticals appear to have limited effectiveness in managing the condition. Transition metal complexes, particularly ruthenium compounds, show promise as potential anti-diabetic agents with diverse mechanisms of activity.
EUROPEAN JOURNAL OF MEDICINAL CHEMISTRY
(2021)
Article
Chemistry, Inorganic & Nuclear
Temidayo Oyetunde, Siphamandla Masikane, Malik Dilshad Khan, Matthew P. Akerman, Helmar Goerls, Neerish Revaprasadu, Winfried Plass
Summary: Metal-organic ligands with mixed chalcogenides were used to prepare manganese and copper chalcogenide alloys. The structures and properties of the complexes were studied, and their decomposition behavior was investigated. The obtained chalcogenides were characterized, and the results provide important guidance for the preparation of mixed anionic metal chalcogenide alloys.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Medicinal
Sanam Maikoo, Bheki Xulu, Allen Mambanda, Ntando Mkhwanazi, Candace Davison, Jo-Anne de la Mare, Irvin Noel Booysen
Summary: In this study, we described the formation and characterization of new paramagnetic ruthenium compounds. These compounds exhibited dose-dependent binding to gDNA and were also DNA intercalators. They were capable of inhibiting topoisomerase I activity and displayed cytotoxicity against different cancer cell lines.
Article
Chemistry, Physical
Tirtha Bhattacharjee, Suman Adhikari, Afzal Hussain Sheikh, Ghodrat Mahmoudi, Sixberth Mlowe, Matthew P. Akerman, Nurul Alam Choudhury, Surajit Chakraborty, Raymond J. Butcher, Alan R. Kennedy, Burcu Saygideger Demir, Aylin oers, Yasemin Saygideger
Summary: This work presents the synthesis and characterization of a Schiff-base ligand and its chelate with a Ni(II) salt. The solid state structures and non-covalent interactions were studied using spectral techniques, density functional theory, and surface analysis. Additionally, the anticancer activity of the compound was investigated.
JOURNAL OF MOLECULAR STRUCTURE
(2022)
Article
Chemistry, Multidisciplinary
Siya T. Hulushe, Frederick P. Malan, Eric C. Hosten, Matthew P. Akerman, Andreas Lemmerer, Setshaba D. Khanye, Gareth M. Watkins
Summary: Two novel mononuclear complexes were synthesized and subjected to solvent-assisted irreversible structural transformations to afford new discrete coordination complexes. The compounds were characterized by various spectroscopic techniques and X-ray crystallography, and exhibited different geometry configurations around the metal centers.
CRYSTAL GROWTH & DESIGN
(2023)
Article
Electrochemistry
Danica Moodley, Xolani Nocanda, Peter Nelson, Allen Mambanda, Irvin Noel Booysen
Summary: This study optimized a gold-modified electrode for the electrocatalytic detection of the water pollutant paraquat. The chemically modified electrode exhibited enhanced sensitivity towards paraquat and could successfully distinguish it in real water samples.
Article
Chemistry, Multidisciplinary
Chane Venter, Matthew P. Akerman
Summary: Three bis(pyridyl-imine) ligands were synthesized and complexed to form four novel complexes with silver(I) salts. Different pre-organized ligands led to the formation of monomeric, dimeric, and polymeric structures in the silver(I) chelates, showcasing the influence of ligand design on metal chelate structures. The d(10) electronic configuration of silver allowed for the adoption of tetrahedral and square planar coordination geometries in the compounds, with DFT methods used to study the stabilizing effects of intermolecular interactions.
Article
Biochemistry & Molecular Biology
Clinton G. L. Veale, Janeeka Jayram, Shivani Naidoo, Dustin Laming, Tarryn Swart, Tania Olivier, Matthew P. Akerman, Katherine A. de Villiers, Heinrich C. Hoppe, Vineet Jeena
RSC MEDICINAL CHEMISTRY
(2020)
Article
Chemistry, Multidisciplinary
Kristy-Lyn Barry, Craig D. Grimmer, Orde Q. Munro, Matthew P. Akerman
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)