Article
Chemistry, Physical
Manos C. Vlasiou, Kyriacos Ioannou, Constantina Eleftheriou, Kyriaki S. Pafiti, Lefteris C. Zacharia, Mohamed El-Shazly
Summary: A newly synthesized chalcone derivative was used as a ligand to form a stable cobalt (II/III) complex, with evaluation of its cytotoxic activity against breast cancer cells and prooxidant/DNA binding activity. The complex exhibited prooxidant activity and strong binding tendency with DNA base pairs, supported by molecular docking theoretical studies showing interactions with breast cancer-related protein structures.
JOURNAL OF MOLECULAR STRUCTURE
(2022)
Article
Chemistry, Physical
Romana Smolkova, Lukas Smolko, Erika Samol'ova, Michal Dusek
Summary: Four novel cobalt(II) complexes with fenamic acid derivatives, non-steroidal anti-inflammatory drugs, were synthesized and characterized. The complexes showed high radical scavenging activity against ABTS and moderate interaction with DNA and serum albumins.
JOURNAL OF MOLECULAR STRUCTURE
(2023)
Article
Chemistry, Multidisciplinary
Emmanouil Nikoloudakis, Ajyal Z. Alsaleh, Georgios Charalambidis, Athanassios G. Coutsolelos, Francis D'Souza
Summary: This paper reports on the visible-light-induced oxidation of water to dioxygen using a newly synthesized NiP-Ru dyad consisting of a ruthenium tris(bipyridyl) as a photosensitizer and a low-cost nickel porphyrin as a water oxidation catalyst.
CHEMICAL COMMUNICATIONS
(2022)
Article
Biochemistry & Molecular Biology
Alina Fudulu, Rodica Olar, Catalin Maxim, Gina Vasile Scaeteanu, Coralia Bleotu, Lilia Matei, Mariana Carmen Chifiriuc, Mihaela Badea
Summary: Three novel Co(II) complexes were synthesized and characterized, showing antimicrobial activity against Candida albicans and various bacterial strains, especially effective against Staphylococcus aureus and Pseudomonas aeruginosa, making them potential candidates for novel anti-biofilm agents.
Article
Multidisciplinary Sciences
Joanna Drzezdzon, Celina Mokwa, Artur Sikorski, Patrycja Parnicka, Adriana Zaleska-Medynska, Jacek Malinowski, Magdalena Kwiatkowska, Barbara Gawdzik, Dagmara Jacewicz
Summary: Nowadays, there are studies on the design and synthesis of new catalysts for olefin oligomerization and polymerization, with non-toxic metals and high catalytic activities. Transition metal complex compounds, such as Fe(II), Cr(III), and Zr(II), that contain pyridine or quinoline ligands have been found to exhibit moderate catalytic activity in ethylene and propylene polymerizations. In this study, a new cobalt(II) complex compound with bis(5-chloroquinolin-8-olato)-bis(pyridine) ligands was synthesized and tested for its catalytic activity in reactions of 2-chloro-2-propen-1-ol and norbornene oligomerizations. The results showed that the activated bis(5-chloroquinolin-8-olato)-bis(pyridine)-cobalt(II) catalyst can promote the formation of oligomers in nitrogen atmosphere, at atmospheric pressure, and at room temperature, demonstrating moderate catalytic activity in norbornene oligomerization and low catalytic activity in 2-chloro-2-propen-1-ol oligomerization.
SCIENTIFIC REPORTS
(2022)
Article
Chemistry, Multidisciplinary
Xiaoyu Zhang, Tianrui Qin, Ruifang Xiang, Xiuyan Dong, Hiroshi Sakiyama, Mohd. Muddassir, Ying Pan
Summary: Three new Co(II)-based coordination polymers were synthesized and characterized. CPs 1 and 3 exhibited a 3D framework with (4,6)-connected CrB-type topology, while CP 2 formed a 1D chain built by the unprotonated H2L linker.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Applied
Desislav Dinev, Katya B. Popova, Tanya Zhivkova, Lora Dyakova, Abedullkader Abudalleh, Radostina Alexandrova, Daniela C. Culita, Teodora Mocanu, Catalin Maxim, Gabriela Marinescu
Summary: Two new families of Cu(II) and Co(II) mononuclear complexes with mixed ligands were successfully synthesized and characterized. Biological evaluation showed that these complexes exhibit cytotoxic effects on HeLa and LSR-SF-SR cells.
APPLIED ORGANOMETALLIC CHEMISTRY
(2022)
Article
Chemistry, Inorganic & Nuclear
Henrique C. Silva Junior, Heloisa N. S. Menezes, Glaucio B. Ferreira, Guilherme P. Guedes
Summary: This study demonstrates the accuracy and speed of deep neural networks (DNNs) in estimating the axial magnetic anisotropy (D) values for single-ion magnets. By using a curated database of cobalt(II) compounds, the DNN achieved significantly higher accuracy and speed compared to density functional theory (DFT) methods. The findings suggest the potential for DNNs to predict anisotropy in larger molecules, even when trained on smaller ligands.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Michal J. Jadwiszczak, Przemyslaw J. Malinowski
Summary: Pairing cations with weakly coordinating anions (WCAs) can result in highly Lewis-acidic and reactive species. To address the problem of excessive reactivity, a series of readily available Co(II)-WCA salts have been introduced with the metal center stabilized by weakly bound ligands. Comprehensive characterization of these complexes has been conducted, revealing their stability and Lewis acidity. Additionally, the use of silver salts has been explored to prepare novel Ag(I) complexes with the same ligands. Experimental and computational studies show that these Co(II) complexes are promising candidates as catalysts in reactions requiring Lewis acids.
CHEMISTRY-A EUROPEAN JOURNAL
(2022)
Article
Chemistry, Inorganic & Nuclear
Peng Meng, Aidan Brock, Xiaodong Wang, Yanan Xu, John McMurtrie, Jingsan Xu
Summary: Reversible molecular crystal transformation between coordinate aggregates and hydrogen bonded assemblies has been achieved. Crystal 1 can transform into crystal 2 by breaking the coordinate chains and adding hydrogen bonding motifs. Crystal 2 has a pseudohexagonal arrangement and is connected by triple hydrogen bonds. The tautomerization of CA and M ligands associated with the crystal transformations was analyzed using single crystal X-ray diffraction and infrared spectroscopy. Photoluminescence was also used to probe the tautomer conversions of conjugated molecules. Crystal 1 is flexible and can recover to its original shape after stress release, while crystal 2 is brittle and shows mechanical anisotropy along different orientations.
INORGANIC CHEMISTRY
(2022)
Article
Environmental Sciences
Hangwei Wang, Zhanren Liu, Shaojie Liu, Ruoru Yang, Yifei Wang, Yiying Gu, Min Wu, Ruihua Dong, Bo Chen
Summary: Catechin has potential therapeutic benefits in treating kidney stones induced by co-exposure to MEL and CYA. It significantly reduces crystal deposition and pathological damage, and decreases renal injury markers.
Article
Chemistry, Physical
Archana Gaurav, Vishal Prasad Sharma, Priyanka Sonker, Ashish Kumar Tewari
Summary: In this study, a tripodal molecule with a unique structure was synthesized and its conformation was investigated using X-ray crystallography and theoretical calculations to assess its stability in different states.
JOURNAL OF MOLECULAR STRUCTURE
(2022)
Article
Biochemistry & Molecular Biology
Francisco Mainardi Martins, Josieli Demetrio Siqueira, Bernardo Almeida Iglesias, Otavio Augusto Chaves, Davi Fernando Back
Summary: Helical complexes composed of organic ligand strands and metallic centers, called helicates, have potential interactions with biomacromolecules. In this study, water-soluble cobalt(II) double-stranded helicates were synthesized and their interactions with biomacromolecules were analyzed. The results showed different binding capacities of these complexes with DNA and albumin, and the main intermolecular forces involved were Van der Waals and hydrogen bonds.
JOURNAL OF INORGANIC BIOCHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Ryohei Akiyoshi, Yuki Komatsumaru, Masaki Donoshita, Shun Dekura, Yukihiro Yoshida, Hiroshi Kitagawa, Yasutaka Kitagawa, Leonard F. Lindoy, Shinya Hayami
Summary: The article investigates the ferroelectric spin crossover behavior in a cobalt(II) complex and finds that the flip-flop motion of the fluorophenyl ring can affect the spin state conversion. Confirmation of this effect is provided through single crystal X-ray structures, magnetic susceptibility measurements, and solid-state NMR spectroscopy.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Physical
Claudelle Sybilline Anensong Djadock, Singaram Vengatesan, Alain Charly Tagne Kuate, Jean Ngoune, Subbiah Ravichandran, Subramanyan Vasudevan
Summary: This study focuses on the synthesis and electrocatalytic activity of two mononuclear cobalt-acylpyrazolone complexes. The complexes exhibit dense crystallite morphologies and show excellent catalytic activity for water splitting reactions. The density functional theory (DFT) calculations suggest that the complexes are strong electrophiles.
CATALYSIS SCIENCE & TECHNOLOGY
(2023)
Article
Engineering, Environmental
Juris Burlakovs, Mait Kriipsalu, Maris Klavins, Amit Bhatnagar, Zane Vincevica-Gaile, Jan Stenis, Yahya Jani, Valeriy Mykhaylenko, Gintaras Denafas, Tsitsino Turkadze, Marika Hogland, Vita Rudovica, Fabio Kaczala, Rene Moller Rosendal, William Hogland
RESOURCES CONSERVATION AND RECYCLING
(2017)
Article
Engineering, Environmental
Gintaras Denafas, Tomas Ruzgas, Dainius Martuzevicius, Sergey Shmarin, Michael Hoffmann, Valeriy Mykhaylenko, Stanislav Ogorodnik, Mikhail Romanov, Ekaterina Neguliaeva, Alexander Chusov, Tsitsino Turkadze, Inga Bochoidze, Christian Ludwig
RESOURCES CONSERVATION AND RECYCLING
(2014)
Article
Chemistry, Inorganic & Nuclear
L. N. Ambroladze, Ts. D. Turkadze, I. Z. Moseshvili
RUSSIAN JOURNAL OF INORGANIC CHEMISTRY
(2008)
Article
Chemistry, Inorganic & Nuclear
L. N. Ambroladze, Ts. D. Turkadze, G. A. Alpaidze, M. G. Apkhadze
RUSSIAN JOURNAL OF INORGANIC CHEMISTRY
(2008)
Article
Chemistry, Analytical
Juris Burlakovs, Mait Kriipsalu, Dmitry Porshnov, Yahya Jani, Viesturs Ozols, Kaur-Mikk Pehme, Vita Rudovica, Inga Grinfelde, Jovita Pilecka, Zane Vincevica-Gaile, Tsitsino Turkadze, William Hogland, Maris Klavins
