A5076287048- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Polyoxometalates: Synthesis and Applications
- Metal-Organic Frameworks: Synthesis and Applications
- Organometallic Complex Synthesis and Catalysis
- Inorganic Chemistry and Materials
- Crystallography and molecular interactions
- Nanocluster Synthesis and Applications
- Metal complexes synthesis and properties
- Metalloenzymes and iron-sulfur proteins
- Vanadium and Halogenation Chemistry
- Crystal structures of chemical compounds
- Magnetism in coordination complexes
- Organometallic Compounds Synthesis and Characterization
- Advanced Nanomaterials in Catalysis
- Crystal Structures and Properties
- Chemical Synthesis and Characterization
- Lanthanide and Transition Metal Complexes
- Solid-state spectroscopy and crystallography
- Asymmetric Hydrogenation and Catalysis
- Carbon dioxide utilization in catalysis
- Perovskite Materials and Applications
- Chemical Synthesis and Reactions
- Inorganic Fluorides and Related Compounds
- Organic and Molecular Conductors Research
Nikolaev Institute of Inorganic Chemistry
2016-2025
National Research Tomsk State University
2023-2025
Tomsk Polytechnic University
2023-2025
Siberian Branch of the Russian Academy of Sciences
2015-2024
Ural Federal University
2022-2024
Research Institute of Scientific Research and Production Association
2023
South Ural State University
2019-2022
Novosibirsk Tuberculosis Research Institute
2014-2021
Novosibirsk State University
2011-2020
Lanzhou Institute of Chemical Physics
2019
Herein, we report on a three-component supramolecular hybrid system built from specific recognition processes involving Dawson-type polyoxometalate (POM), [P2W18O62]6–, cationic electron-rich cluster [Ta6Br12(H2O)6]2+, and γ-cyclodextrin (γ-CD). Such materials have been investigated using bottom-up approach by studying the interactions between γ-CD both types of inorganic units. Their ability to interact has in solid state single-crystal X-ray diffraction (XRD) solution multinuclear NMR...
The reactions between the tetra-n-butylammonium salt of [{Mo6I8}I6]2– and silver carboxylates RCOOAg (R = CH3 (1), C(CH3)3 (2), α-C4H3O (3), C6H5 (4), α-C10H7 (5), or C2F5 (6)) in CH2Cl2 afforded new carboxylate complexes [{Mo6I8}(RCOO)6]2–. were characterized by X-ray single-crystal diffraction elemental analysis, cyclic/differential pulse voltammetry, IR, NMR, UV–visible spectroscopies. emission properties 1–6, those earlier reported with R CF3 (7) n-C3F7 (8), studied both acetonitrile...
In this communication, we report on a noteworthy hybrid supramolecular assembly built from three functional components hierarchically organized through noncovalent interactions. The one-pot synthesis procedure leads to the formation of large Mo-blue ring-shaped anion {Mo154}, which contains adduct based symmetric encapsulation Dawson-type [P2W18O62]6– by two γ-cyclodextrin units. Such nanoscopic onion-like structure, noted [P2W18O62]@2γ-CD@{Mo154} has been characterized single-crystal X-ray...
Formation of one the most representative polyoxometalate (POM) archetypes, namely Lindqvist anion M6O192- with M = MoVI or WVI, was considered as elusive in aqueous solution. Herein, we report on host-guest stabilization species Mo W from solution using γ-cyclodextrin trapping agent. The adduct {M6O19@γ-CD}2- reveals remarkable hydrolytic stability that offers new opportunities for exploring potentialities molybdates tungstates field biology and medicine, when combined to CDs efficient drug...
Abstract Herein, we show how the chaotropic effect arising from reduced molybdate ions in acidified aqueous solution is able to amplify drastically weak supramolecular interactions. Time‐resolved Small Angle X‐ray Scattering (SAXS) analysis suggests that molybdenum‐blue oligomeric species form huge aggregates presence of γ‐cyclodextrin (γ‐CD) which results fast formation nanoscopic {Mo 154 }‐based host‐guest species, while diffraction reveals ending‐point scenario an unprecedented...
A series of heteroleptic square-planar Pt and Pd complexes with bis(diisopropylphenyl) iminoacenaphtene (dpp-Bian) Cl, 1,3-dithia-2-thione-4,5-dithiolate (dmit), or 1,3-dithia-2-thione-4,5-diselenolate (dsit) ligands have been prepared characterized by spectroscopic techniques, elemental analysis, X-ray diffraction cyclic voltammetry (CV). The intermolecular noncovalent interactions in the crystal structures were assessed density functional theory (DFT) calculations. anticancer activity...
A yellow bromobismuthate {(2-BrPy)2 H}[BiBr4 ] (1, 2-BrPy=2-bromopyridinium) transforms into the unusually deeply colored cherry-red (2-BrPyH)2 [BiBr5 (2). combination of structural studies and theoretical calculations confirms that appearance short non-covalent Br⋅⋅⋅Br interactions (≈3.3 Å) in 2 is responsible for anion-to-cation charge transfer (LP(Brligand )→σ*(Br-C)), yielding dramatic changes optical behavior. This effect opens way towards novel halogen bonding-templated...
Cation-dependent reactions "[SbBr6 ]3- +Br2 +HBr+CationBrx " result in the formation of bromide/polybromide complexes with zero-, one-, two-, or three-dimensional supramolecular frameworks and different Br/Sb ratios (up to 11). Seven new compounds representing six structural types were characterized by XRD thermogravimetric analysis DFT calculations enabled estimation energies Br⋅⋅⋅Br contacts (1.1-4.6 kcal mol-1 ).
In the presence of different cations, reactions [SbBr6 ]3- and I2 result in a new family diverse supramolecular 1D polyiodide-bromoantimonate networks. The coordination number Sb, as well geometry assembling {Ix }n- polyhalide units, can vary, resulting unprecedented structural types. nature I⋅⋅⋅Br interactions was studied by DFT calculations; estimated energy values are 1.6-6.9 kcal mol-1 . Some compounds showed strong photoconductivity thin films, suggesting multiple feasible applications...
Structurally different complex bismuth iodides with 1D anionic frameworks were designed and explored as semiconductor materials for photovoltaic devices.
Two sets of silver–molybdate complexes with L = XR<sub>3</sub> (X P, As, Sb; R<sub>3</sub> Ph<sub>3</sub>, Ph<sub>2</sub>Py) and functionalized pyridine-based ligands have been studied different techniques.
Halogen bonding within bromo- and polybromoantimonates(<sc>v</sc>).
Reactions between BiCl 3 , Br 2 and chlorides of pyridinium ( 1 ), 4,4′‐propylenedipyridinium or trimethylphenylammonium ) in aqueous HCl lead to the formation chlorobismuthate complexes trapping {Br } solid state into two‐dimensional polyhalide supramolecular networks. The nature non‐covalent ··· Cl interactions was studied by theoretical methods; estimated energies these are 1.9–6.0 kcal/mol.
Abstract Water‐soluble salts of anionic [Re 6 Q 8 (CN) ] 4− (Q=S, Se, Te) chalcogenide octahedral rhenium clusters react with γ‐cyclodextrin (γ‐CD) producing a new type inclusion compounds. Crystal structures determined through single‐crystal X‐ray diffraction analysis revealed supramolecular host–guest assemblies resulting from close encapsulations the cluster within two γ‐CDs. Interestingly, nature inner ligands influences strongly conformation. The S interacts preferentially primary faces...
Zr-monosubstituted Lindqvist-type polyoxometalates (Zr-POMs), (Bu4N)2[W5O18Zr(H2O)3] (1) and (Bu4N)6[{W5O18Zr(μ-OH)}2] (2), have been employed as molecular models to unravel the mechanism of hydrogen peroxide activation over Zr(IV) sites. Compounds 1 2 are hydrolytically stable catalyze epoxidation C═C bonds in unfunctionalized alkenes α,β-unsaturated ketones, well sulfoxidation thioethers. Monomer is more active than dimer 2. Acid additives greatly accelerate oxygenation reactions increase...
A series of heteroleptic bipyridine Pd(II) complexes based on 1,2-bis[(2,6-diisopropylphenyl)imino]acenaphthene (dpp-Bian) or 1,2-bis[(2,4,6-trimethylphenyl)imino]acenaphthene (tmp-Bian) were prepared. All fully characterized by spectrochemical methods, and their crystal structures confirmed X-ray diffraction analysis. The 72 h stability with Bian ligands under physiological conditions was investigated using 1H NMR spectroscopy. anticancer activity all assessed in a panel cancer cell lines...
The structure-directing "key-to-lock" interaction of double σ-(I
New hybrid POM based on Lindqvist-type polyoxometalates [M6O19](8-) (M = Nb, Ta) and organometallic fragment {Cp*Rh}(2+) have been isolated characterized. X-ray quality crystals of K4[(Cp*Rh)2Nb6O19]·20H2O () Cs4[(Cp*Rh)2Ta6O19]·18H2O were obtained from solutions with {Cp*Rh} : stoichiometry 2 1. The solution behavior the polyoxoanions was studied ESI-MS (1)H DOSY NMR. Amongst poorly investigated chemistry polyoxotantalates, complex is first bearing a grafted fragment. formation 1 complexes...
Two new hybrid molybdenum(IV) Mo3 S7 cluster complexes derivatized with diimino ligands have been prepared by replacement of the two bromine atoms [Mo3 Br6 ](2-) a substituted bipyridine ligand to afford heteroleptic Br4 (diimino) complexes. Adsorption cores from sample solutions on TiO2 was only achieved functionalized clusters. The adsorbed units were reduced surface generate an electrocatalyst that reduces overpotential for H2 evolution reaction approximately 0.3 V (for 1 mA cm(-2) )...
The combination of a new oxidovanadium(<sc>iv</sc>) complex<bold>1</bold>with pyrazine-2-carboxylic acid (PCA; cocatalyst) affords catalytic system for the efficient oxidation saturated hydrocarbons.
Reaction of [(C6H6)RuCl2]2 and Na8[Ta6O19] gives two new hybrid organometallic POM complexes, Na10[{(C6H6)RuTa6O18}2(μ-O)]·39.4H2O (Na10-1) Na4(trans-[{(C6H6)Ru}2Ta6O19]·20H2O (Na4-2). In both cases the half-sandwich fragments {(C6H6)Ru}2+ are coordinated as additional vertices to {Ta3(μ2-O)3} triangles hexatantalate. According NMR ESI-MS data, dimeric complex [{(C6H6)RuTa6O18}2(μ-O)]10- dissociates in water with formation monomeric [(C6H6)RuTa6O19]6– species (1a). X-ray structural...
Three novel polybromotellurates(IV) were obtained by reactions of TeO 2 in conc. HBr with Br and tri‐ or tetraalkylammonium salts. They contain [TeBr 6 ] 2– octahedra connected {Br } linkers into one‐ pseudo‐two‐dimensional networks. The thermal stability the products was investigated TGA; additionally, all compounds characterized Raman spectroscopy. Energies ··· interactions estimated DFT calculations (QTAIM method).