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Mixed-valence clusters: Prospects for single-molecule magnetoelectrics
Coordination Chemistry Reviews. 2021. Vol. 426. P. 1-23.
Palii A., Алдошин С. М., Tsukerblat B.
Голосов Е. В., Алдошин С. М., Корчагин Д. В. et al., MAGNETOCHEMISTRY 2020 Vol. 6 No. 3 P. 36-36
The effect of the double exchange in a square-planar mixed-valence dn+1−dn+1−dn−dn–type tetramers comprising two excess electrons delocalized over four spin cores is discussed. The detailed analysis of a relatively simple d2−d2−d1−d1–type tetramer shows that in system with the delocalized electronic pair the double exchange is able to produce antiferromagnetic spin alignment. This is drastically different ...
Added: October 10, 2022
Vasilyev D., Shyshkanov S., Shirzadi E. et al., undefined 2020 Vol. 3 No. 5 P. 4690-4698
Electrochemical reduction of carbon dioxide (CO2RR) is promoted by ionic liquid (IL) co-catalysts, and several mechanisms have been proposed to explain their role. Due to the complexity of the CO2RR and the limited number of active IL co-catalysts, a consensus on the precise role of ILs has not been reached, and it is not possible ...
Added: October 29, 2020
Medvedev M., Belyy A., Levina A. et al., European Journal of Organic Chemistry 2019 Vol. 2019 No. 26 P. 4133-4138
The reaction of di(methoxycarbonyl)tetrazine with substituted cycloprop-2-ene-1-carboxylates gives a series of 3,4-diazanorcaradienes and 1,2-diazepines. The influence of the nature of cyclopropenes and the reaction conditions on its selectivity was investigated. The addition of nucleophiles to norcaradienes was studied and a rare example of the “walk” rearrangement in this class of compounds was revealed. ...
Added: October 12, 2019
Shekunova T. O., Mironov A. V., Istomin S. et al., Chemistry - A European Journal 2020 Vol. 26 P. 12188-12193
Two novel cerium(IV) phosphates were obtained: cerium(IV) hydroxidophosphate, Ce(OH)PO4, and cerium(IV) oxidophosphate, Cе2O(PO4)2, which were shown to complement the classes of isostructural compounds M(OH)PO4 and R2O(PO4)2, where M = Th, U and R = Th, U, Np, Zr. Cе2O(PO4)2 oxidophosphate is formed by elimination of H2O from the crystal structure of Ce(OH)PO4 during its thermal ...
Added: July 2, 2020
В.А. Дударев, Иванова Л. Д., Нихезина И. Ю. et al., Физика и техника полупроводников 2017 Т. 51 № 8 С. 1028-1030
Thermoelements for thermoelectric coolers from fine-crystalline
materials based on antimony and bismuth chalcogenide
solid solutions of p- and n-type conductivities, obtained by hot
pressing and extrusion from powders, made by melt spinning,
were studied. Calculations of modules’ properties were performed
in the range of 100−400K, taking into account temperature
dependencies of thermoelectric parameters of legs, and the parameters
of thermoelectric legs’ matching ...
Added: October 30, 2019
Gebauer P., Poddig H., Corredor-Bohorquez L. T. et al., Chemistry of Materials 2021 Vol. 33 No. 7 P. 2420-2435
Magnetic topological semimetals (MTSs) are quantum materials highly desirable for spintronics. We report the synthesis, the crystal structure, the chemical bonding analysis, the magneto(transport) properties, and the bulk and surface electronic structures of GdBiTe. It is a high-Z isostructural analogue of the archetypical nodal-line TS ZrSiS and a recently discovered MTS LnSbTe (Ln = Ce, ...
Added: April 30, 2021
Budkov Y., Kolesnikov A. L., Polymer Science - Series C 2018 Vol. 60 No. Supplement 1 P. 148-159
Theoretical models of the conformational behavior of flexible polymer chains in mixed solvents enunciated in the world literature during the last decade are critically reviewed. Models describing different mechanisms of coil-to-globule transitions in a good solvent induced by cosolvent addition are highlighted. Special attention is given to the analysis of theoretical approaches to describing the ...
Added: November 30, 2018
Golubenko D. V., Yaroslavtsev A. B., Journal of Membrane Science 2020 Vol. 612 P. 118408
This communication describes the development of anion-exchange membrane (AEM) with a modified surface possessing monovalent ion selectivity and antifouling properties. Modified AEMs series was obtained by the formation of an oppositely-charged thin layer utilizing the surface sulfonation of the grafted AEMs. The creation of the interface layer leads to a significant increase in the Cl/SO4 ...
Added: August 30, 2020
Голосов Е. В., Алдошин С. М., Палий А. В. et al., Reviews and Advances in Chemistry 2021 Vol. 11 No. 3-4 P. 145-165
This article is a short overview of the problem of controllable magnetic spin communicationas an important ingredient of spintronics and molecular electronics. We discuss the problem of communicationof the two localized spins mediated by the mobile electron which is shared between twonon-magnetic sites coupled to the mobile spins. The model system which is assumed to ...
Added: October 10, 2022
Fedotov S., Luchinin N., Aksyonov D. et al., Nature Communications 2020 Vol. 11 Article 1484
The rapid progress in mass-market applications of metal-ion batteries intensifies the development of economically feasible electrode materials based on earth-abundant elements. Here, we report on a record-breaking titanium-based positive electrode material, KTiPO4F, exhibiting a superior electrode potential of 3.6 V in a potassium-ion cell, which is extraordinarily high for titanium redox transitions. We hypothesize that such ...
Added: February 10, 2021
Möllmer J., Uhlig H., Lange M. et al., Journal of Alloys and Compounds 2021 Vol. 859 Article 157782
MgPd2 is an intermetallic compound with a reversible hydrogen uptake near ambient conditions. Hydrogenation occurs near room temperature at pressures below 0.1 MPa to form a hydrogen-rich MgPd2H0.88 phase. In this work, hydrogen sorption isotherms were measured at 283 K ≤ T ≤ 328 K as well as at a cryogenic temperature of 77 K and pressure values up ...
Added: November 5, 2020
Издательский дом НИУ ВШЭ, 2019
Учебно-методическое пособие составлено на основании многолетнего опыта преподавания курса неорганической химии на химическом факультете МГУ имени М.В. Ломоносова. Пособие является руководством к лабораторным занятиям и состоит из четырех глав. В первой главе изложена техника безопасности проведения лабораторных работ, во второй — приводится описание основной химической посуды и приемов обращения с ней, а также правила обращения с реактивами. ...
Added: September 9, 2019
Leonov N. E., Klenov M. S., Churakov A. A. et al., ChemistrySelect 2020 Vol. 5 No. 39 P. 12243-12249
Energetic compounds 1–6, consisting of one or two furazan rings linked by azo or azoxy bridges and one or two nitro‐NNO‐azoxy substituents, were synthesized by nitration of the corresponding tert‐butyl‐NNO‐azoxy precursors with NO2BF4. Novel methods for the synthesis of 3,4‐bis(tert‐butyl‐NNO‐azoxy)furazan (7) and bis‐4,4′‐(tert‐butyl‐NNO‐azoxy)‐3,3′‐azoxyfurazan (21) were elaborated. The nitro‐NNO‐azoxy compounds obtained display high calculated detonation performance (vD=8.07–9.40 km s−1 and PC‐J=27.4–43.4 GPa) that ...
Added: October 17, 2020
Vasilyev D., Rudnev A., Broekmann P. et al., ChemSusChem 2019 Vol. 12 No. 8 P. 1635-1639
Deep eutectic solvents (DESs) were applied to the electrochemical CO2 reduction reaction (CO2RR). Choline‐based DESs represent a non‐toxic and inexpensive alternative to room‐temperature ionic liquids (RTILs) as additives to the system or as electrolyte. Following the study on choline‐based DESs this approach was generalized and simple and organic‐soluble systems were devised based on the combination of ...
Added: October 29, 2020
Zasimov P., Ryazantsev S. V., Tyurin D. et al., Monthly Notices of the Royal Astronomical Society 2020 Vol. 491 No. 4 P. 5140-5150
Investigations of the low-temperature radiation-induced transformations in the C2H2–H2O system are relevant to the chemistry occurring in interstellar and cometary ices. In this work, we applied a matrix isolation technique to study the radiation-driven evolution of this system at molecular level in order to get new mechanistic insight. The 1:1 C2H2⋅ ⋅ ⋅H2O complexes were prepared in ...
Added: January 21, 2021
Trainov K., Salikov R., Luponosov Y. et al., Mendeleev Communications 2019 Vol. 29 No. 3 P. 304-306
First representatives of a novel class of compounds containing an electron-accepting hydrazonocyclopentadiene moiety, π-conjugated phenylene spacer, and electron-donating triphenylamine moiety have been synthesized. Investigation of their optical, electrochemical and photovoltaic properties revealed a high potential of the hydrazonocyclopentadiene acceptor moiety in the design of donor-acceptor compounds for organic photovoltaics. ...
Added: October 14, 2020
Budkov Y., Journal of Physics: Condensed Matter 2019 Vol. 31 P. 078002-078003
We reply to the comment on our paper by Budkov (2018 J. Phys.: Condens. Matter 30 344001). ...
Added: January 4, 2019
Kalikin N., Budkov Y., Kolesnikov A. L. et al., Fluid Phase Equilibria 2021 Vol. 544-545 Article 113096
Despite the modern level of development of computational chemistry methods and technological progress, fast and accurate determination of solvation free energy remains a huge problem for physical chemists. In this paper, we describe two computational schemes that can potentially solve this problem. We consider systems of poorly soluble drug compounds in supercritical carbon dioxide. Considering that the biggest contribution ...
Added: June 1, 2021
Filimonenkov I. S., Istomin S., Antipov E. V. et al., Electrochimica Acta 2018 Vol. 286 P. 304-312
In this work we analyze the applicability limits of the rotating ring-disk electrode (RRDE) technique for
quantifying the amount of oxygen produced during the oxygen evolution reaction (OER). We utilize a
state-of-the art IrO2 oxide as a carbon-free OER catalyst and La1xSrxMn0.5Co0.5O3d, x . 0.25 and 0.5
perovskites, which are studied in the presence of carbon. RRDE experiments ...
Added: May 29, 2019
Golubenko D. V., Van der Bruggen B., Yaroslavtsev A. B., Journal of Applied Polymer Science 2020 Vol. 137 No. 19 P. 48656
A novel anion-exchange membrane has been manufactured by chloromethylation and subsequent quaternization of polystyrene within a graft copolymer films based on UV-oxidized polymethylpentene. Particular attention is given to the kinetics of chloromethylation and the influence of the reaction conditions on the properties of the anion-exchange membranes. By means of variation of the polystyrene content and ...
Added: February 27, 2020
Bari : Digilabs Pub., 2021
ASYS, the AIPEA School for Young Scientists. ASYS was successfully convened at the Andalusian Institute of
Earth Sciences (CSIC-UGR, Granada, Spain) on July 15 and 16, 2017, under the supervision of Dr. Claro Ignacio
Sainz Díaz, researcher of this centre, and in close connection to the 16th International Clay Conference in Granada
(ICC 2017). Young and not so-young ...
Added: September 5, 2021
Akparov V., Timofeev V., Khaliullin I. et al., Journal of Biomolecular Structure and Dynamics 2018 Vol. 36 No. 4 P. 956-965
Carboxypeptidase B (EC 3.4.17.2) (CPB) is commonly used in the industrial insulin production and as a template for drug design. However, its ability to discriminate substrates with hydrophobic, hydrophilic, and charged side chains is not well understood. We report structure of CPB complex with a transition state analog N-sulfamoyl-L-phenylalanine solved at 1.74 angstrom. The study ...
Added: January 28, 2019
Budkov Y., М. : ЛЕНАНД, 2020
Within the presented monograph for the first time statistical approaches, based on the self-consistent field theory, were presented for the theoretical description of the thermodynamic properties of the ion-molecular systems (electrolyte solutions, ionic liquids, dielectric polymers and metal-organic frameworks) in the bulk solution and at the interfaces with the account for their molecular structure. In ...
Added: November 18, 2019
Olloqui-Sariego J. L., Zakharova G., Poloznikov A. et al., Electrochimica Acta 2020 Vol. 351 P. 136465
A major challenge in the design of electrochemical biodevices is to achieve fast rates of electron exchange between proteins and electrodes. In this work, we show that a significant increase in the direct electron transfer rate between a graphite electrode and Tobacco Peroxidase takes place when a surface exposed leucine, located in the vicinity of ...
Added: July 22, 2020