Article
Chemistry, Multidisciplinary
Guojin Zhang, Daniel Morrison, Guochen Bao, Haibo Yu, Chang Won Yoon, Taekyong Song, Jihye Lee, Alison T. Ung, Zhenguo Huang
Summary: A new amine-borane system with reversible dehydrogenation and regeneration at room temperature has been discovered, producing unique dehydrogenation products with a distinct cyclic structure that can be easily converted back to the original amine-borane. This finding may pave the way for the discovery of new amine-boranes with potential applications as hydrogen storage materials.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Review
Chemistry, Physical
Aman N. Patni, Ameya S. Mantri, Debashis Kundu
Summary: Research on IL-mediated dehydrogenation of amine borane has been carried out extensively, focusing on suitable ILs, kinetic mechanisms, and molecular interactions. Despite considerable efforts, commercialization has not been achieved yet. This review aims to provide a comprehensive discussion on literature updates, IL selection, roles, mechanistic analysis, and future progress in this field.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Biochemistry & Molecular Biology
Igor E. Golub, Oleg A. Filippov, Natalia V. Belkova, Lina M. Epstein, Elena S. Shubina
Summary: The study established the mechanism of consecutive halogenation of borohydrides and hexahydro-closo-hexaborate dianion by hydrogen halides, revealing changes in the chemical properties of borohydrides during halogenation.
Article
Materials Science, Multidisciplinary
Saravanapriya Arumugam, Abiram Angamuthu, Praveena Gopalan
Summary: This study investigated the stability and electronic properties of dihydrogen bonds between Hδ+ in NH3 and Hδ- in BH4 in various metal and ammoniated complexes. Analysis revealed the presence of non-covalent interactions and the role of dispersion interactions in the hydrogen evolution process. Overall, adding amine groups to alkali metal borohydrides increases charge distribution around the dispersion interaction, influencing hydrogen evolution.
ECS JOURNAL OF SOLID STATE SCIENCE AND TECHNOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Elena S. Osipova, Ekaterina S. Gulyaeva, Evgenii I. Gutsul, Vladislava A. Kirkina, Alexander A. Pavlov, Yulia V. Nelyubina, Andrea Rossin, Maurizio Peruzzini, Lina M. Epstein, Natalia V. Belkova, Oleg A. Filippov, Elena S. Shubina
Summary: The reaction between basic [(PCP)Pd(H)] and acidic [LWH(CO)(3)] leads to the formation of bimolecular complexes that catalyze dehydrogenation. Experimental and computational studies reveal the formation of a complex in the first step, where proton transfer is the rate-determining step.
Review
Energy & Fuels
Carlos A. Castilla-Martinez, Romain Moury, Salem Ould-Amara, Umit B. Demirci
Summary: Boron-based materials have been extensively studied for hydrogen storage applications, but various destabilization strategies have been developed to improve their properties. This review provides an overview of recent advances in destabilization strategies for selected boron-based compounds from 2015 to 2021.
Review
Chemistry, Physical
Umit B. Demirci
Summary: Sodium borohydride (NaBH4) has been considered as a promising hydrogen storage material, but its hydrolysis still faces numerous obstacles. This article aims to assess the progress made in hydrolysis of NaBH4 and summarize the newly acquired knowledge.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Physical
Meryem Sena Akkus
Summary: In the current global energy crisis, the value of hydrogen has gained more recognition. Metal borohydrides, rich in hydrogen, have attracted significant attention from researchers. In this study, glass microscope slides were coated with nickel nanorods and used as a catalyst for catalytic hydrolysis reactions of dimethylamine borane and lithium borohydride to produce hydrogen. Various parameters were varied and their effects on the catalyst's performance were examined. The study also determined the reaction kinetics and activation energy values of dimethylamine borane and lithium borohydride.
Article
Environmental Sciences
Senem Karahan Gulbay, Mulkiye Kaymaz, Fulya Gulbagca, Fatih Sen
Summary: This study investigates the catalyst efficiency of morpholine borane in hydrogen production and discovers that Pd50Ni50/C nanoparticles have excellent catalytic behavior and high reusability.
Article
Energy & Fuels
Cafer Saka
Summary: A hybrid g-C3N4-SiO2-N composite was successfully produced using calcination and hydrothermal methods. The composite catalyst showed excellent catalytic performance in the H2 production reaction from NaBH4 methanolysis, with a high hydrogen generation rate and good durability.
Article
Chemistry, Physical
Bilge Coskuner Filiz, Aysel Kanturk Figen
Summary: This study aims to develop easily recoverable and regenerated catalysts for efficient hydrogen production from alkyl-substituted amine boranes. The results showed that alkyl-substituted amine boranes exhibited slower hydrogen generation rates compared to ammonia borane in the presence of catalysts. Among the different activated carbon support types, the catalyst supported on granule activated carbon demonstrated the best catalytic performance and recyclability activity.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Yasar Karatas, Adem Zengin, Mehmet Gulcan
Summary: This study reports the fabrication, characterization, and application of amine-terminated CuMnO2-NH2 supported palladium nanoparticles as highly efficient and recyclable catalysts for hydrogen production from the methanolysis of ammonia-borane. The results reveal that Pd (0) nanoparticles are well spread on the surface of CuMnO2-NH2, and Pd/CuMnO2-NH2 exhibits high catalytic activity and extreme stability in the reaction.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Multidisciplinary
Srewashi Das, Chandan Das, Naseer Ahmad Shah, Santanu Ghorai, Piyali Majumder, Arnab Dutta
Summary: The strategic inclusion of nucleic bases adenine, cytosine, and thymine, in the form of outer coordination sphere, positively impacts the electro- and photocatalytic H-2 production by cobaloxime cores. These cobaloxime derivatives showcased their optimal H-2 production in acidic media due to specific protonation of adenine and cytosine below pH 5.0.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Jialu Shen, Weifeng Chen, Guo Lv, Zihan Yang, Jiaying Yan, Xiang Liu, Zhongxu Dai
Summary: Recently, graphene quantum dots-transition metal nanoparticles (GQDs-TMNPs) have been successfully applied in the hydrolysis of NH3BH3 (AB) and NaBH4, showing high dispersibility and activity. GQDs-RhNPs, GQDs-RuNPs, and GQDs-PtNPs demonstrate high catalytic activity in the hydrolysis of AB, with turnover frequencies (TOFs) reaching up to 656, 384, and 281 mol(H2)center dot mol(cat)(-1) min(-1), respectively.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Metallurgy & Metallurgical Engineering
Kang Chen, Hao Zhong, Liuzhang Ouyang, Fen Liu, Hui Wang, Jiangwen Liu, Huaiyu Shao, Min Zhu
Summary: This study demonstrates a convenient and high-efficiency solvent-free strategy for regenerating LiBH4 with a maximum yield close to 80% by using MgH2 as a reducing agent under ambient conditions. The hydrogen released from the regeneration course can completely compensate for the demand for consumed MgH2. The isotopic tracer method reveals that the hydrogen stored in LiBH4 comes from both MgH2 and coordinated water bound to LiBO2. This work offers new insights into deploying boron-based hydrides for energy applications.
JOURNAL OF MAGNESIUM AND ALLOYS
(2023)
Article
Chemistry, Multidisciplinary
Vladislava A. Kirkina, Alexander A. Kissel, Alexander N. Selikhov, Yulia Nelyubina, Oleg A. Filippov, Natalia Belkova, Alexander A. Trifonov, Elena S. Shubina
Summary: The catalytic activity of Ln(II) species in amine-borane dehydrogenation was observed for the first time using specific complexes, generating dehydrocoupling intermediates.
CHEMICAL COMMUNICATIONS
(2022)
Article
Chemistry, Inorganic & Nuclear
Roman I. Nekrasov, Tat'yana A. Peganova, Ivan V. Fedyanin, Evgenii I. Gutsul, Oleg A. Filippov, Natalia V. Belkova, Alexander M. Kalsin
Summary: A series of pentamethylcyclopentadienyl rhodium complexes were synthesized and characterized, and some complexes were found to have low stability and high nucleophilicity and reactivity.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Inorganic & Nuclear
Aleksei A. Titov, Alexander F. Smol'yakov, Ivan A. Godovikov, Andrey Yu. Chernyadyev, Alexander P. Molotkov, Dmitry A. Loginov, Oleg A. Filippov, Natalia V. Belkova, Elena S. Shubina
Summary: The complexation between 6-substituted isocoumarins and cyclic trinuclear silver pyrazolate was studied in solution and solid state. It was found that the structure and emission properties of these complexes are influenced by the self-association abilities of isocoumarins.
INORGANICA CHIMICA ACTA
(2022)
Article
Biochemistry & Molecular Biology
Gleb B. Yakovlev, Aleksei A. Titov, Alexander F. Smol'yakov, Andrey Yu. Chernyadyev, Oleg A. Filippov, Elena S. Shubina
Summary: The reaction between a cyclic trinuclear copper(I) or silver(I) pyrazolate complex and 1,1'-dimethyl-2,2'-bibenzimidazole can result in the formation of tetranuclear adducts decorated by one or two molecules of a diimine ligand. The coordination of the ligand can stabilize the formation of a tetrahedral core in the copper-containing complex and a distorted tetrahedron in the silver analog. Complexes with one diimine molecule possess two types of metals and exhibit significantly distorted central cores. Temperature decrease and solid-state structure activate triplet states, leading to phosphorescence. The silver-containing complex exhibits dual emission even at room temperature.
Article
Chemistry, Inorganic & Nuclear
Matthieu Cavailles, Oleg A. Filippov, Vincent Cesar, Noel Lugan, Dmitry A. Valyaev
Summary: The first manganese complex with a chiral N-heterocyclic carbene (NHC) ligand was synthesized and characterized. The existence of two isomers with distinct nu(CO) band patterns in solution was revealed by IR spectroscopy. DFT calculations explained their different spectroscopic properties as a result of attractive intramolecular interligand interactions.
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2023)
Article
Biochemistry & Molecular Biology
Elena S. Osipova, Sergey A. Kovalenko, Ekaterina S. Gulyaeva, Nikolay V. Kireev, Alexander A. Pavlov, Oleg A. Filippov, Anastasia A. Danshina, Dmitry A. Valyaev, Yves Canac, Elena S. Shubina, Natalia V. Belkova
Summary: The acid-base characteristics of metal hydride complexes can be used to predict their activity in catalytic reactions. The polarity of the M-H bond changes during the formation of a non-covalent adduct with an acidic or basic partner, which is responsible for the subsequent hydrogen ion transfer.
Article
Chemistry, Inorganic & Nuclear
Elena S. Osipova, Daria V. Sedlova, Evgenii I. Gutsul, Yulia V. Nelyubina, Pavel V. Dorovatovskii, Lina M. Epstein, Oleg A. Filippov, Natalia V. Belkova, Elena S. Shubina
Summary: This study found that a series of bimetallic complexes catalyze formic acid decomposition into H2/CO2 under mild conditions without any organic base additives. The catalytic activity of the complexes increases with CH2-substitution of the O-bridges and the proton-donating ability of the Mo/W hydride. The best result was obtained with (tBuPCP)Pd(mu-OC)Mo(CO)2Cp (3), which showed complete conversion at 2 mol % loading in 30 min at 50 degrees C (TOF = 100 h-1). The experimental data also showed the involvement of palladium hydride species and the interaction of formates with Bro''nsted or Lewis acids in the catalytic cycle.
Article
Chemistry, Inorganic & Nuclear
Arina Olbrykh, Aleksei Titov, Alexander Smol'yakov, Oleg Filippov, Elena S. Shubina
Summary: The investigation studied the interaction of cyclic trinuclear silver(I) pyrazolate [AgPz](3) with pyridine-based chalcones through various spectroscopic techniques. The carbonyl group participated in coordination with metal ions, while non-covalent pi-pi/M-pi interactions played a major role in complex formation. The structures of the complexes were retained in both solution and solid state. Isomerization affected the complexation of anthracene-containing chalcones, with E-isomer seeking a planar structure and Z-isomer showing chelating coordination. The complexation of anthracene-containing chalcones allowed a change in emission nature, while phenyl-substituted chalcone demonstrated a significant shift in emission energy compared to the free base when complexed with a macrocycle.
Review
Chemistry, Multidisciplinary
N. V. Kireev, O. A. Filippov, L. M. Epstein, E. S. Shubina, N. V. Belkova
Summary: This review focuses on the reactivity of dinitrogen complexes of group 6 metals with phosphine ligands. It identifies the main stages of N-2 reduction and factors affecting the reaction efficiency. The protonation of the coordinated N-2 molecule, which occurs through alternating proton and electron transfer steps, is highlighted as a key step in the catalytic cycle of nitrogen reduction.
RUSSIAN CHEMICAL BULLETIN
(2023)
Article
Chemistry, Inorganic & Nuclear
Mohammad Ameskal, Rachid Taakili, Ekaterina S. Gulyaeva, Carine Duhayon, Jeremy Willot, Noel Lugan, Christine Lepetit, Dmitry A. Valyaev, Yves Canac
Summary: An efficient synthesis of stable Pd(II) complexes with diverse coordination frameworks is developed. The complex bearing a nonsymmetrical NHC core pincer scaffold shows competitive donor properties. The bonding situation of C- and P-bound phosphonium ylide fragments within the same molecule is studied for the first time.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Inorganic & Nuclear
Sofiia K. Emashova, Aleksei A. Titov, Alexander F. Smol'yakov, Andrey Yu Chernyadyev, Ivan A. Godovikov, Maria Godovikova, Pavel Dorovatovskii, Alexander A. Korlykov, Oleg A. Filippov, Elena S. Shubina
Summary: This study investigates the fluorescence properties of 3-trifluoromethyl-pyrazoles containing triphenylamine and carbazole groups, as well as their silver complexes, in both solution and solid state. The results show that the electronic coupling between triphenylamine substituent and pyrazole leads to fluorescence emission in solution, while the rigid structure of the N-ethyl carbazole substituent results in typical carbazole-centered fluorescence. Aggregation plays a major role in determining the emission properties in the solid state.
INORGANIC CHEMISTRY FRONTIERS
(2022)
Article
Chemistry, Multidisciplinary
Elena S. Osipova, Ekaterina S. Gulyaeva, Nikolay Kireev, Sergey A. Kovalenko, Christian Bijani, Yves Canac, Dmitry A. Valyaev, Oleg A. Filippov, Natalia Belkova, Elena S. Shubina
Summary: Low-temperature IR and NMR studies combined with DFT calculations revealed the mechanistic complexity of reactions between Mn(i) complex fac-[(dppm)Mn(CO)(3)H] and Lewis acids, involving the formation of mer-[(dppm)Mn(CO)(3)HMIDLINE HORIZONTAL ELLIPSISLA] and unusual dearomatization of the Ph3C+ cation upon hydride transfer.
CHEMICAL COMMUNICATIONS
(2022)
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)