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Photochemistry of hexachloroosmate (IV) in ethanol
Photochemical and Photobiological Sciences. 2020. Vol. 19. P. 1569–1579.
Glebov E., Matveeva S. G., Pozdnyakov I., Grivin V., Plyusnin V., Vasilchenko D., Romanova T. E., Melnikov A., Chekalin S., Fedunov R. G.
The photochemistry of the OsIVCl62− complex in ethanol was studied by means of stationary photolysis, nanosecond laser flash photolysis, ultrafast pump–probe spectroscopy and quantum chemistry. The direction of the photochemical process was found to be wavelength-dependent. Irradiation in the region of the d–d and LMCT bands results in the photosolvation (with the wavelength-dependent quantum yield) and photoreduction of Os(IV) to Os(III), correspondingly. The characteristic time of photosolvation is ca. 40 ps. Photoreduction occurs in the micro- and millisecond time domains via several Os(III) intermediates. The nature of intermediates and the possible mechanisms of photoreduction are discussed. We believe that the lability of the photochemically produced Os(IV) and Os(III) intermediates determines the synthetic potential of OsIVCl62− photochemistry.
Kolokolov I., Lebedev V., Physical Review E - Statistical, Nonlinear, and Soft Matter Physics 2026 Vol. 113 Article 054117
We theoretically investigate the correlation functions of the phase of a light wave propagating through a
turbulent medium. We use an equation for the logarithm of a wave packet envelope, which includes a secondorder
nonlinear term. Based on this equation, we develop a diagrammatic technique to calculate corrections
to the correlation function obtained in the linear approximation. We ...
Added: May 15, 2026
Гущина В. А., / Series chemrxiv-2023-vpzhz-v2 "ChemRxiv". 2023.
All-inorganic perovskite CsPbBr3 and Cs4PbBr6 nanoparticles are being intensively studied due to their unique properties and wide range of applications; however, however, the nature of their optical properties is not yet fully understood due to the difficulty of synthesis of singlephase nanoparticles. In this article we describe the features of the synthesis of single-phase particles ...
Added: May 14, 2026
Гущина В. А., Mendeleev Communications 2025 Vol. 35 No. 2 P. 193–195
All-inorganic perovskite CsPbBr3 and Cs4PbBr6 nanoparticles are intensively studied for their unique optical properties, though synthesizing single-phase nanoparticles has posed challenges. Detailed synthesis method of CsPbBr3 and Cs4PbBr6 single-phase nanoparticles and their chemical and phase analysis are described. Distinctive optical characteristics, such as photoluminescence, optical band gap and the Urbach tail region, are revealed and explained within the current ...
Added: May 14, 2026
Гущина В. А., Physics of Complex Systems, Russia 2026 Vol. 7 No. 1 P. 3–15
Heterostructures based on ZnO nanorods and CsPbBr3 nanocrystals were investigated for their potential as semiconductor SERS substrates. We found that ZnO morphology governs the efficiency of interfacial energy transfer, leading to enhanced photoluminescence under 390 nm excitation and a noticeable reduction of the bandgap in the composites. Raman analysis revealed a pronounced intensity enhancement and ...
Added: May 14, 2026
Мальцева В. Е., Ananyev I., Sivaev I. et al., Journal of Cluster Science 2025 Vol. 36 No. 5 Article 161
The conformational mobility of the [8-EtO-8’-I-3,3’-Co(1,2-C2B9H10)2]− anion, which has been chosen as a model compound for many potential drugs based on cobalt bis(dicarbollide), was studied by 1H NMR spectroscopy, single crystal X-ray diffraction and quantum chemical calculations. According to the results of quantum chemical calculations, the most favourable conformation for [8-EtO-8’-I-3,3’-Co(1,2-C2B9H10)2]− is the transoid conformation, which is stabilized by one ...
Added: May 13, 2026
Мальцева В. Е., Оскорбин А. А., Журнал общей химии 2023 Т. 93 № 11 С. 1722–1735
С использованием композитных методов квантово-химических расчетов и метода атомизации выполнены расчеты энтальпии образования для тестового набора из 79 соединений с точностью 3.8, 4.5, 4.7 кДж/моль для методов G4, G4MP2, CBS-QB3 соответственно. По результатам статистического анализа отклонений теоретических значений от экспериментальных выявлено присутствие ошибок, возникающих на этапе оптимизации геометрии из-за неучтенных в расчете корреляционных эффектов. Для ...
Added: May 13, 2026
Мальцева В. Е., Ananyev I., Милевская А. В. et al., Теоретические основы химической технологии 2025 Т. 59 № 3 С. 13–22
Проведено квантово-химическое моделирование механизма экстракции Fe(III) из солянокислого раствора с использованием гидрофобных эвтектических растворителей на основе 1-октанола. Установлено, что путь реакции существенно различается в зависимости от того, является ли инертный компонент донором или акцептором водородной связи в димере с октанолом. На основе оценки прочности водородных связей показано, что более слабое взаимодействие между компонентами упрощает протекание ...
Added: May 13, 2026
Мальцева В. Е., Ananyev I., Kozhevnikova A. et al., Molecules 2024 Vol. 29 No. 21 Article 5022
A new approach to managing the extraction properties of eutectic solvents based on aliphatic alcohols is proposed. Aliphatic alcohols, when functioning as hydrogen bond donors within a eutectic solvent, significantly enhance the solvent’s efficiency in extracting metal ions. Conversely, when the alcohol acts as a hydrogen bond acceptor, its extraction properties diminish. Molecular modelling reveals ...
Added: May 13, 2026
Садртдинова Г. И., Nifantiev I., Vinogradov A. et al., Russian Chemical Reviews 2025 Vol. 94 No. 9 P. 1 – 55
The reactivity of polar vinyl monomers, unsaturated compounds containing functional groups, depends on the presence or absence of conjugation between the C=C bond and the neighbouring unsaturated moieties or donor heteroatoms. Conjugated polar vinyl monomers (acrylates, vinyl ethers, etc.) (co)polymerize upon free-radical initiation. The reaction is widely used to produce numerous polymer materials that qualitatively differ ...
Added: May 12, 2026
Ilya Nifant’ev, Komarov P., Guzelia Sadrtdinova et al., Polymers 2024 Vol. 16 No. 5 Article 681
Silica-supported chromium oxide catalysts, also named Phillips chromium catalysts (PCCs), provide more than half of the world’s production of high- and medium-density polyethylenes. PCCs are usually prepared in the Cr(VI)/SiO2 form, which is subjected to reductive activation. It has been explicitly proven that CO reduces Cr(VI) to Cr(II) species that initiate ethylene polymerization; ethylene activates ...
Added: May 12, 2026
Bisnovatyi-Kogan G., Kondratyev I., Moiseenko S. G., International Journal of Modern Physics A 2025 Vol. 40 No. 7 Article 2550018
Bright transient objects in different wave bands have been discovered in recent years.
To explain these short (from ms to s), and very powerful events, different models, galactic and
extragalactic, have been considered. One of the popular models is based on the suggestion of
transformation of the magnetized plasma blob, presumably a magnetohydrodynamic (MHD)
shock wave, moving with relativistic ...
Added: May 11, 2026
Торопина О. Д., Бисноватый-Коган Г. С., Moiseenko S. G., Astronomy Reports 2025 Vol. 69 No. Suppl. 1 P. 80–90
The results of MHD simulations of supersonic astrophysical and laboratory jets in an external
poloidal magnetic field (Br,Bz) taking into account the rotation of the matter, are presented. The ejected
matter is collimated by the magnetic field, the degree of collimation and the flow structure depend on the
relation between of the magnetic field induction and the angular ...
Added: May 11, 2026
Гущина В. А., Russian Journal of Inorganic Chemistry 2024 Vol. 69 No. 6 P. 940–948
Currently, ABX3 nanoparticles (NPs) based on lead halides attract the attention due to their unique optical properties and a wide range of applications. The preparation of NPs with lead as a partial or complete replacement is particularly interesting because of the toxicity of this chemical element and most of its compounds. In this study, we propose a ...
Added: May 6, 2026
Morozov E. V., Demin A. S., Borovitskaya I. V. et al., Inorganic Materials: Applied Research 2026 Vol. 17 No. 3 P. 619–626
This article presents the results of experiments on the impact of powerful pulsed ion-plasma and
electron flows generated in the working chamber of the Plasma Focus PF-5M installation during each highvoltage
discharge on a model aluminum alloy B95. It is shown that the general characteristics of the alloy’s
damage upon exposure to pulsed flows of helium ions (HI) ...
Added: May 4, 2026
A. A. Ponomarev, N. L. Aleksandrov, Plasma Physics Reports 2026 Vol. 52 No. 3 P. 367–378
An approximate method for calculating drift velocity and other kinetic coefficients of heavy ions
in a light gas is generalized to gaseous mixtures. Obtained equations are used to calculate the mobilities of
and ions, as well as rate constants for inelastic ion–molecule processes with these ions in helium with
small additions of O2 under an electric field. Calculated ...
Added: April 27, 2026
Domrin V. I., Malova H. V., V. Yu. Popov et al., Cosmic Research 2026 Vol. 64 No. 2 P. 238–252
During magnetospheric perturbations a relatively thin current sheet with thickness about several
proton gyroradii forms in the Earth’s magnetotail. In a framework of the kinetic model describing current
sheet thinning in the magnetotail, the processes of its formation are investigated depending on the normal
magnetic field magnitude which affects both the current sheet structure and particle dynamics within ...
Added: April 27, 2026
Migulin A. V., MIlyutin C V, Lichitsky B. V. et al., Organic and Biomolecular Chemistry 2025 Vol. 23 No. 17 P. 4172–4185
In the present communication, a comprehensive study of the photochemical behavior of terarylenes with a 2-aminothiazole bridge unit and an allomaltol substituent was performed. It was shown that for the considered substrates, two types of photoprocesses can be realized. By controlling the structure of the starting material, the photoprocess can be directed toward the 6π-electrocyclization ...
Added: September 10, 2025
Paukov M. I., Starchenko V. V., Melnikov A. et al., Materials Today Chemistry 2024 No. 36 Article 101886
Added: July 24, 2025
Nikovskiy I., Aleshin D., Valentin V. Novikov et al., Inorganic Chemistry 2022 Vol. 61 No. 51 P. 20866–20877
A new synthetic pathway is devised to selectively produce previously elusive heteroleptic iron(II) complexes of terpyridine and N,N′-disubstituted bis(pyrazol-3-yl)pyridines that stabilize the opposite spin states of the metal ion. Such a combination of the ligands in a series of the heteroleptic complexes induces the spin-crossover (SCO) not experienced by the homoleptic complexes of these ligands or ...
Added: January 31, 2023
Ezhov A. V., Vyal'ba F. Y., Zhdanova K. A. et al., Journal of Porphyrins and Phthalocyanines 2020 Vol. 24 No. 4 P. 538–547
n this study two pairs of novel zinc-porphyrin complexes (ZnP1 ZnP2 ZnP3 and ZnP4) were synthesized as sensitizers for DSSC and their photophysical, computational studies and photovoltaic properties were investigated. Structures of proposed dyes are based on a molecular design that relies on donor/π-bridge/acceptor interactions. Compounds differ by anchoring mode to the titanium dioxide surface: ...
Added: December 6, 2021
Telegina L., Strelkova T., Ezernitskaya M. et al., Journal of Organometallic Chemistry 2020 Vol. 926 Article 121465
A series of 3-cymantrenylalkylisothioureas (2) was synthesized. DFT calculations showed that
compounds 2 in solutions are dimers. The photolysis of 2 was studied by IR, UV-vis and NMR spectroscopic
methods. Irradiation of compounds 2 results in the formation of two type chelates, in which the manganese atom is
coordinated to the S (3) or N (4) atoms of ...
Added: March 6, 2021
Фельдман В. И., Рязанцев С. В., Каменева С. В., Russian Chemical Reviews 2021 Vol. 90 P. 1145–1165
Recent progress in observational astronomy and astrophysics has stimulated the intensive laboratory studies aimed at elucidation of the mechanisms of evolution of molecular matter in interstellar space and various space objects. One of the most intriguing and rapidly developing areas of these studies is the so-called "cold astrochemistry" devoted to the complex processes occurring in ...
Added: February 28, 2021
Glebov E., Bakulina O. D., Shushakov A. A. et al., Mendeleev Communications 2020 Vol. 30 No. 3 P. 322–324
The photophysical and photochemial properties of dipyrido[3,2-a:2′,3′-c]phenazine (dppz) in acetonitrile have been investigated by laser flash photolysis and ultrafast pump-probe spectroscopy. The excitation of dppz to the first singlet excited state was followed by vibrational cooling with solvent relaxation for ∼3 ps and then intersystem crossing for ∼50 ps. Spectral and kinetic characteristics of the triplet excited ...
Added: January 18, 2021
Glebov E., Pozdnyakov I., Semionova V. V. et al., Mendeleev Communications 2020 Vol. 30 No. 1 P. 61–63
Early processes in photochemistry of 2,3-bis(2,5-dimethylthiophen-3-yl)cyclopent-2-enone were explored using the ultrafast pump-probe spectroscopy. The photocyclization occurs from the antiparallel conformation of an open form on a time scale of 7 ps, while the parallel conformation exhibits an intersystem crossing within 130 ps. The mechanism and timescales were revealed as typical of other thiophene-containing diarylethenes. ...
Added: January 18, 2021