Article
Chemistry, Multidisciplinary
Rong-Da Lai, Jing Zhang, Xin-Xiong Li, Shou-Tian Zheng, Guo-Yu Yang
Summary: This study demonstrates the first oxalate-assisted lanthanide incorporation strategy for creating rare high-nuclearity Ln-containing polyoxoniobates. A series of high-nuclearity Ln-containing polyoxoniobates have been synthesized, showing an increasingly large structure evolution. Among them, Dy14Nb192 presents the largest heterometallic polyoxoniobate and also the polyoxoniobate with the greatest number of Ln ions reported thus far. Interestingly, both giant Dy14Nb192 and Dy10Nb190 molecules can further undergo single-crystal to single-crystal intermolecular aggregations, forming infinite chains. These new species largely enrich the Ln-containing polyoxoniobate family and offer rare examples for studying structural transformations between giant molecular aggregates and infinitely extended structures at the atomic level.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Inorganic & Nuclear
Hanhan Chen, Kangting Zheng, Jingru Wang, Bingxue Niu, Jingping Wang, Pengtao Ma, Jingyang Niu
Summary: Two novel arsenotungstate species, [As4W48O168]36- (1a) and [As2W21O77(H2O)3]22- (2a), have been successfully isolated under a one-pot synthetic method. 1a is the second largest arsenotungstate cluster constructed from four {AsW12} clusters combined together. 2a can be described as lacunary sites of {As2W19} filled by {W2O8} units. Compounds 1 and 2 exhibit proton conductivity properties, and the conductivity value of 1 is 5.0 x 10-3 S cm-1 at 98% relative humidity and 75 degrees C. This work proves the participation of lattice water molecules and polyoxoanions in hydrogen bond formation as an effective pathway for intermolecular proton conduction.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Inorganic & Nuclear
Rong-Da Lai, Hui-Lin Feng, Yan-Qiong Sun, Xin-Xiong Li, Shou-Tian Zheng
Summary: A rare EuTe6Nb18 cluster compound with unique structure and catalytic properties has been successfully synthesized and characterized in this study. The compound exhibits a 3D supramolecular framework structure and shows moderate proton conduction and water vapor adsorption properties.
DALTON TRANSACTIONS
(2022)
Article
Chemistry, Multidisciplinary
Hanna Morales Hernandez, Qiwei Sun, Matthew Rosati, Rebecca L. M. Gieseking, Christopher J. Johnson
Summary: The role of hydrogen atoms as surface ligands on metal nanoclusters is of profound importance but remains difficult to directly study. Here, we used gas-phase infrared spectroscopy to directly test the behavior of hydrogen atoms in the prototypical Au-9(PPh3)(8)H2+ nanocluster. Our results support the notion that hydrogen atoms in the nanocluster behave as acidic protons and play key roles in synthetic or catalytic mechanisms.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Inorganic & Nuclear
Hanhan Chen, Rongchang Liang, Minna Zhi, Ying Ding, Pengtao Ma
Summary: A compound containing giant Er-16 arsenotungstate potassium, K28H74[{Er(H2O)(3)}(4){Er(H2O)}(2){Er(H2O)(2)}(2){As2W19O67(H2O)}(4){AsW9O33}(2){W2O6}(4)][{As2W19O67(H2O)}(4){AsW9O33}(2){AsO2}(2){W2O6}(4){{Er(H2O)}(2){Er(H2O)(2)}(6)}]center dot 227H(2)O (1), was prepared via reaction and characterized by various analytical techniques, exhibiting characteristic near-infrared emission peak of Er3+.
INORGANIC CHEMISTRY COMMUNICATIONS
(2021)
Article
Chemistry, Inorganic & Nuclear
Kirill Grzhegorzhevskii, Margarita Tonkushina, Pavel Gushchin, Ilya Gagarin, Alexander Ermoshin, Kseniya Belova, Anna Prokofyeva, Alexander Ostroushko, Alexander Novikov
Summary: The association process between tetracycline (TC) and Keplerate-type nanocluster polyoxometalate (POM) {Mo72Fe30} in aqueous solution was studied. The supramolecular ensemble {Mo72Fe30}@TC12.5 was produced and its composition and structure were characterized. The binding sites of TC with the Keplerate {Mo72Fe30} surface were identified. Additionally, the antibacterial activity of the complex {Mo72Fe30}@TC12.5 was examined, and the inhibition of TC's antibacterial activity was observed due to the coordination of TC to Fe-III centers.
Article
Chemistry, Multidisciplinary
Jiang Liu, Nan Jiang, Jiao-Min Lin, Zhi-Bin Mei, Long-Zhang Dong, Yi Kuang, Jing-Jing Liu, Su-Juan Yao, Shun-Li Li, Ya-Qian Lan
Summary: In this study, a giant lantern-type polymolybdate cluster (L-Mo-132) was prepared, which has the same metal nuclearity as the famous Keplerate type Mo-132 (K-Mo-132). The skeleton of L-Mo-132 features a rare truncated rhombic triacontrahedron, which is completely different from the truncated icosahedral structure of K-Mo-132. This is the first observation of such structural variants in high-nuclearity clusters composed of more than 100 metal atoms. L-Mo-132 exhibits good stability and shows superior phenol oxidation performance compared to K-Mo-132 due to its concave pentagonal building blocks that expose more active metal sites on the outer surface.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Inorganic & Nuclear
Hai-Lou Li, Chen Lian, Guo-Yu Yang
Summary: A novel Ti-W-O-cluster-substituted tungstoantimonate has been synthesized and structurally characterized, featuring a polyoxoanion constructed from three [B-alpha-SbW9O33](9-) units and a previously unobserved decanuclear heterometallic Ti-W-O cluster. Furthermore, the material shows good catalytic activity towards the oxidation reactions of various sulfides and cyclooctene based on the environmentally friendly oxidant H2O2.
INORGANIC CHEMISTRY
(2021)
Review
Spectroscopy
Tucker Carrington
Summary: In this paper, collocation methods for solving the time-independent and the time-dependent Schroedinger equation are reviewed. Compared to traditional variational methods, collocation methods do not require integrals and quadrature, unless the potential does not have a special form. There are established ideas for reducing the size of the basis in a variational calculation, but difficulties with quadrature still arise.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2021)
Article
Multidisciplinary Sciences
Ning Li, Ruochen Shi, Yifei Li, Ruishi Qi, Fachen Liu, Xiaowen Zhang, Zhetong Liu, Yuehui Li, Xiangdong Guo, Kaihui Liu, Ying Jiang, Xin-Zheng Li, Ji Chen, Lei Liu, En-Ge Wang, Peng Gao
Summary: This study reveals the phonon behavior at the isotope heterostructure with sub-unit-cell resolution using electron energy-loss spectroscopy. The phonon energy changes gradually across the interface, featuring a wide transition regime. The study provides new insights into the isotopic effects in natural materials.
NATURE COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Valdemir Ludwig, Alessandro Henrique de Lima, Lucas Modesto-Costa, Zelia M. Da Costa Ludwig, Joao Paulo Almeira de Mendonca, Welber Gianini Quirino, Fernando Sato
Summary: In this study, graphene oxide (GO) was synthesized and its vibrational properties were characterized for hydrated and lyophilized samples. Computational simulations showed a large polarization in the GO molecule due to strong hydrogen bonds formed between water molecules and oxygen functional groups. This led to broadening observed in the infrared and Raman spectra.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Chemistry, Physical
Shu-Rong Li, Hai-Ying Wang, Hai-Feng Su, Hui-Jun Chen, Ming-Hao Du, La-Sheng Long, Xiang-Jian Kong, Lan-Sun Zheng
Summary: The successful synthesis of two giant 3d-4f polyoxometalate inorganic clusters, LaNi12 and La10Ni48, display high stability in solution and excellent proton conductivity, with La10Ni48 being the largest cluster reported thus far in the polyoxometalate system.
Article
Chemistry, Physical
Patrick Ober, Sophia H. H. Kolbinger, Ellen H. G. Backus, Mischa Bonn
Summary: The charge and composition of a solid surface are affected by the composition of the aqueous phase due to ion-specific interactions between ions and the surface. This study investigates ion-specific interactions at the fluorite-water interface using surface-sensitive vibrational sum frequency generation spectroscopy and flow experiments. The flow-induced change in dissolved ion concentration at the surface alters chemical equilibria and influences the surface potential, which is probed using the vibrational sum frequency generation intensity in the OH stretch region. The study identifies charge screening and ion-specific effects, including surface adsorption, by analyzing the vibrational sum frequency generation intensity and its flow-induced change for different salts.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Engineering, Chemical
Huan Yang, Guanyu Song, Christopher J. Hogan
Summary: The study reveals the different impacts of thermal reemission coefficient and thermal accommodation coefficient on heat transfer between metal nanoclusters and gas molecules, with the latter being insensitive to temperature in accepting energy rate from gas molecules.
JOURNAL OF AEROSOL SCIENCE
(2022)
Article
Multidisciplinary Sciences
Ruishi Qi, Ruochen Shi, Yuehui Li, Yuanwei Sun, Mei Wu, Ning Li, Jinlong Du, Kaihui Liu, Chunlin Chen, Ji Chen, Feng Wang, Dapeng Yu, En-Ge Wang, Peng Gao
Summary: Four-dimensional electron energy-loss spectroscopy measurements reveal localized modes at heterointerfaces that impact thermal conductance and electron mobility. Experimental challenges stem from the need to achieve combined spatial, momentum, and spectral resolutions to probe these modes effectively.
Article
Chemistry, Multidisciplinary
K. Kurochka, N. Melnikova, D. O. Alikin, A. Tebenkov, I. Korobeynikov, P. S. Zelenovskiy
Summary: The implantation of single-walled carbon nanotubes (CNTs) was found to enhance the stability and prevent interlayer interaction in layered glassy materials at high pressures, with significant changes in electrical properties observed only at pressures exceeding the damage threshold for CNTs.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2021)
Article
Chemistry, Multidisciplinary
Pavel S. Zelenovskii, Konstantin Romanyuk, Michelle S. Liberato, Paula Brandao, Fabio F. Ferreira, Svitlana Kopyl, Luis M. Mafra, Wendel A. Alves, Andrei L. Kholkin
Summary: This study reports the fabrication of layered biomolecular crystals of diphenylalanine (FF) through a co-assembly of l,l- and d,d-enantiomers of FF monomers, and investigates their crystal structure, thermal and chemical stabilities, and piezoelectric properties. Single crystal X-ray diffraction reveals that FF enantiomers exhibit strong out-of-plane piezoelectricity, almost an order of magnitude higher than in quartz. The grown crystals demonstrate better thermal and chemical stabilities and can be exfoliated to form a 2D piezoelectric material with potential applications in biocompatible and ecologically friendly electromechanical microdevices.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Chemistry, Inorganic & Nuclear
Kirill Grzhegorzhevskii, Andrey D. Denikaev, Maria Morozova, Victoria Pryakhina, Evgeniia Khairullina, Ilya Tumkin, Olga Taniya, Alexander A. Ostroushko
Summary: This study demonstrates the covalent modification of giant polyoxometalates (POM) using alkoxysilanes, opening up new possibilities for supramolecular structure design and functional materials.
INORGANIC CHEMISTRY FRONTIERS
(2022)
Article
Materials Science, Multidisciplinary
Konstantin Romanyuk, Vladislav Slabov, Denis Alikin, Pavel Zelenovskiy, Maria Rosario P. Correia, Kirill Keller, Rute A. S. Ferreira, Semen Vasilev, Svitlana Kopyl, Andrei Kholkin
Summary: This study proposes a new method of forming piezoactive films through solid phase crystallization, addressing the issue of controlling the self-assembly process. The research shows that with controlled temperature and humidity, dense films with controlled thickness and orientation can be obtained, containing large ferroelectric-like domains with uniform piezoresponse. The method may be applicable to other bioorganic piezoelectric materials, opening up possibilities for their use in implantable piezotronics and beyond.
APPLIED MATERIALS TODAY
(2022)
Review
Materials Science, Multidisciplinary
Pavel S. Zelenovskii, Daria S. Vasileva, Semen G. Vasilev, Svitlana Kopyl, Andrei Kholkin
Summary: This article summarizes recent findings on the polymorphs, functional properties, and phase transitions of glycine, focusing on its ferroelectric properties and potential applications in biocompatible photonic and piezoelectric devices.
FRONTIERS IN MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Nikita Kulachenkov, Marina Barsukova, Pavel Alekseevskiy, Aleksandr A. Sapianik, Maxim Sergeev, Andrei Yankin, Andrei A. Krasilin, Semyon Bachinin, Sergei Shipilovskikh, Petr Poturaev, Natalia Medvedeva, Ekaterina Denislamova, Pavel S. Zelenovskiy, Vladimir V. Shilovskikh, Yuliya Kenzhebayeva, Anastasiia Efimova, Alexander S. Novikov, Artem Lunev, Vladimir P. Fedin, Valentin A. Milichko
Summary: This article reports on a family of coordination polymers (CPs) based on dynamic structural elements, which have great application value in modern problems such as molecular separation, catalysis, and data processing. The design of a series of Cu-based CPs with flexible ligand bImB is discussed, showing dimensionality mediated flexibility and reversible structural transformations. The use of laser pulses as a fast source of activation energy allows for thermal expansion and volume changes, enabling the transformation of the CPs at record rates. The endurance of structural transformations over multiple cycles at ambient conditions demonstrates the potential for optical fiber integrated all-optical data processing.
Article
Chemistry, Multidisciplinary
Vladislav Slabov, Joao Vidal, Pavel Zelenovskii, Svitlana Kopyl, Marco P. Soares dos Santos, Andrei Kholkin
Summary: Triboelectric nanogenerators (TENGs) collecting energy from mechanical vibrations are simple, low-cost, and efficient sources of electricity. By using dip-coating technique to deposit arrays of oriented FF microbelts, researchers developed a TENG with better performance than piezoelectric nanogenerators based on FF microbelts. Water captured in FF nanochannels affects V-OC, while mobile water increases I-SC. The cyclization of FF molecules improves TENG performance due to an increase in surface energy and surface flattening.
Article
Chemistry, Multidisciplinary
Margarita. O. O. Tonkushina, Kirill. V. V. Grzhegorzhevskii, Alexander. A. A. Ermoshin, Anastasia. S. S. Tugbaeva, Grigory. A. A. Kim, Olga. S. S. Taniya, Ilya. D. D. Gagarin, Alexander. A. A. Ostroushko
Summary: This article investigates the binding between the antitumor drug doxorubicin (DOX) and the nanocluster polyoxometalate (POM) {Mo72Fe30}, which serves as the drug carrier. The formation of a stoichiometric complex POM@(DOX)(12) in aqueous media is observed. Various spectroscopic techniques reveal the composition of the complex and the role of {Mo3Fe3} host pores on the POM surface in DOX binding. The ability of DOX to intercalate into DNA after binding with {Mo72Fe30} is explored, along with the pH-dependent release of DOX from POM@(DOX)(12) and the reduction of undesired side effects through immobilization on the POM surface.
Article
Chemistry, Inorganic & Nuclear
Kirill Grzhegorzhevskii, Margarita Tonkushina, Pavel Gushchin, Ilya Gagarin, Alexander Ermoshin, Kseniya Belova, Anna Prokofyeva, Alexander Ostroushko, Alexander Novikov
Summary: The association process between tetracycline (TC) and Keplerate-type nanocluster polyoxometalate (POM) {Mo72Fe30} in aqueous solution was studied. The supramolecular ensemble {Mo72Fe30}@TC12.5 was produced and its composition and structure were characterized. The binding sites of TC with the Keplerate {Mo72Fe30} surface were identified. Additionally, the antibacterial activity of the complex {Mo72Fe30}@TC12.5 was examined, and the inhibition of TC's antibacterial activity was observed due to the coordination of TC to Fe-III centers.
Article
Multidisciplinary Sciences
Vladimir Bystrov, Ekaterina Paramonova, Pavel Zelenovskii, Svitlana Kopyl, Hong Shen, Tie Lin, Vladimir Fridkin
Summary: Peptide nanotubes (PNT) of diphenylalanine (FF) have gained significant attention due to their unique properties and applications. The chirality of FF monomers plays a crucial role in the self-assembly and morphology of PNTs. Furthermore, the helical symmetry of PNTs results in intrinsic polarization and remarkable mechanical, electronic and optical characteristics, making them potential candidates for diverse electronic and optoelectronic devices.
Article
Chemistry, Multidisciplinary
Mahsa Nikookar, Abdolreza Rezaeifard, Maasoumeh Jafarpour, Kirill Grzhegorzhevskii, Alexander A. Ostroushko
Summary: An innovative top-down method for the synthesis of melem using concentrated sulfuric acid was discovered, allowing for large-scale production without the need for controlled conditions. The resulting air-stable melem product exhibited a unique nano rectangular prism morphology with a larger surface area, making it a promising candidate for catalysis and adsorption applications.
Article
Chemistry, Physical
Michelle S. Liberato, Nayara G. S. Cavalcante, P. Abinaya Sindu, Monica J. Rodrigues-Jesus, Pavel Zelenovskii, Ana C. O. Carreira, Mauricio S. Baptista, Mari C. Sogayar, Luis C. S. Ferreira, Luiz H. Catalani
Summary: The formation of hydrogels through photosensitized oxidation and crosslinking of histidine-derived polymers has been demonstrated for the first time. The potential use of photooxidation to create a new type of histidine-based hydrogels was discussed, showing larger storage moduli of CS-His hydrogels compared to ELPs with other amino acids. Molecular structure, physicochemical properties, and elastic properties of the materials were studied, highlighting the correlation between protein conformation and its properties.
Article
Nanoscience & Nanotechnology
A. A. Ostroushko, K. Grzhegorzhevskii, S. Yu Medvedeva, I. F. Gette, M. O. Tonkushina, I. D. Gagarin, I. G. Danilova
Summary: The paper discusses the potential of Keplerate-type molybdenum-based nanocluster polyoxometalates (POMs) in biomedicine as a means of targeted drug delivery, and presents results of studies on the effects of POM on living systems.
NANOSYSTEMS-PHYSICS CHEMISTRY MATHEMATICS
(2021)
Article
Chemistry, Inorganic & Nuclear
Kirill Grzhegorzhevskii, Lidia Adamova, Alexander Ostroushko
Summary: It has been demonstrated that nanoporous MOxF, specifically giant POMs with Keplerate or toroidal structures, exhibit specific sorption behavior towards different volatile substances. This behavior can be generalized through the dependence of limit sorption on dielectric constant and molecular polarizability. An analysis of sorption behavior shows that hydrogen bonding, hydrophobic forces, and polar and dispersion interactions can be expressed through a cooperative phenomenon correlated with dielectric constant.
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)
