Organoelement chemistry: promising growth areas and challenges

Абакумов, Г. А.; Пискунов, А. В.; Cherkasov, V. K.; Fedushkin, Igor L.; Ananikov, Valentine P.; Eremin, Dmitry B.; Gordeev, Evgeniy G.; Beletskaya, I. P.; Averin, A D; Bochkarev, M N; Trifonov, Alexander A.; Джемилев, У. М.; D’yakonov, Vladimir A.; Egorov, Mikhail P.; Vereshchagin, A. N.; Syroeshkin, Mikhail A.; Jouikov, Viatcheslav; Muzafarov, А. М.; Анисимов, А. А.; Arzumanyan, Ashot V.; Kononevich, Yuriy N.; Temnikov, Maxim N.; Sinyashin, Оleg G.; Budnikova, Yu. G.; Burilov, A R; Карасик, А. А.; Mironov, V F; Стороженко, П. А.; Щербакова, Г. И.; Трофимов, Б. А.; Амосова, С. В.; Гусарова, Н. К.; Потапов, В. А.; Shur, V. B.; Burlakov, Vladimir V.; Bogdanov, V. S.; Andreev, Maxim V.

doi:10.1070/rcr4795

Cited by 168 publications

(52 citation statements)

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“…[16] Dithiolate complexes 4-10 undergo electrochemical oxidation at 0.35-0.57 V, and it is typical for such kind of species. [14,15b,18] An additional wave at 0.65 V is observed for the (dppf )PdditQ complex (5). It was assigned to the process, localized at the ferrocenyl fragment of the phosphine ligand.…”

Section: Electrochemical Propertiesmentioning

confidence: 99%

Pd^II(P‐P) Derivatives of o‐Quinone Annulated with Dithiete Cycle: Electrochemical Properties and Coordination Regioisomerism

et al. 2020

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Regioselectivity in interaction of bifunctional o‐quinone annulated with dithiete cycle with tris(dibenzylideneacetone)dipalladium (Pd2dba3) in presence of bidentate phosphines was studied. Excluding the case of 1,2‐bis(diphenylphosphino)ethane (dppe) species, the formation of corresponding dithiolates with high yields was observed. Coordination of palladium to the dithiolene site of bifunctional ligand causes a distortion of the dioxolene site as well as significant decrease of its electron‐acceptor ability. The formation of both catecholate and dithiolate isomers, observed in case of reaction with dppe, might be interpreted as a consequence of kinetic factors.

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Section: Electrochemical Propertiesmentioning

confidence: 99%

Pd^II(P‐P) Derivatives of o‐Quinone Annulated with Dithiete Cycle: Electrochemical Properties and Coordination Regioisomerism

et al. 2020

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“…The unique peculiarity of organometallic and coordination compounds is a high sensitivity to the nearest chemical environment that allows fulfil the fine tuning of their properties by optimal ligands choice. One of the impressive examples of the direct modification of the organometallic and coordination complexes is introduction of redox active ligands into the metal coordination sphere . The complexes with radical anion form of redox active ligands are of particular interest in the magnetic material construction field since the metal complexes with stable radical ligands are extensively investigated as potential building blocks for molecular magnet design .…”

Section: Introductionmentioning

confidence: 99%

Features of Magnetic Behavior in the Row of Pentacoordinated Bis‐o‐Iminobenzosemiquinonato Metal (Al, Ga, In) Complexes

et al. 2019

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The series of pentacoordinated bis‐o‐iminobenzosemiquinonato complexes with general formula (imSQ)2MR where imSQ – is a radical anion of 4,6‐di‐tert‐butyl‐N‐(2,6‐di‐isopropylphenyl)‐o‐iminobenzoquinone (M = Al, Ga, In; R = Akl, Hal, N3, NCS) has been expanded through synthesis of six new (imSQ)2MR complexes [M = In, R = Me (1), Br (5), Cl (6); M = Ga, R = OPh (16), NCO (17); M = Al, R = NCO (23)]. In all complexes (imSQ)2MR except for R = Alk the strong antiferromagnetic exchange coupling between organic radicals, conditioned by the presence of the pathway for superexchange, takes place. In the (imSQ)2GaR complexes the value of magnetic exchange interaction (J) was found to depend linearly on the distance between metal center and inorganic apical substituent: the shortening of Ga–R distance in the row Ga–I > Ga–Br > Ga–Cl > Ga–NCS > Ga–OPh is accompanied by the increasing of J value from –68.6 to –139.3 cm–1. For Al and In analogues complexes such dependence has not been observed. The pathway for superexchange in pentacoordinated (imSQ)2MR complexes was found to be broken after complex coordination geometry changeover to hexacoordinated one, which was clearly demonstrated by the example of pyridine molecule coordination to the (imSQ)2InI (4).

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“…However, the most promising approach to preparing advanced ceramic materials with desired properties is the use of pre-ceramic organoelement oligomers as initial compounds. The preparation of ceramics through such oligomers makes it possible to control the composition and structure of ceramic compositions at all levels (microcrystalline, nanostructured or amorphous), which is impossible by any other known methods [8,9].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Preceramic Organomagnesium Oxanealumoxane Siloxanes

Щербакова

Pokhorenko

2019

The 23rd International Electronic Conference on Synthetic Organic Chemistry

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Organomagnesiumoxane alumoxane siloxane oligomers with different Al:Mg and Al:Si molar ratio have been synthesized through ethylacetoacetate alkoxyhydroxyalumoxane oligomers co-condensation with magnesium acetylacetonate and oligoethoxysiloxanes in organic solvents (alcohol, toluene) at a temperature of 70-100 °С within 3-6 h with the following solvent distillation. The physicochemical properties of the synthesized oligomers were studied. It is shown that with a molar ratio of Al:Mg ≈ 2 and Al:Si ≈ 1, oligomers have fiber-forming properties. The process of thermotransformation of organomagnesiumoxane alumoxane siloxanes into ceramic phases is investigated. It is found that pyrolysis results in the formation of multicomponent ceramics based on magnesium, aluminum, and silicon oxides, in particular, ceramics with a composition close to that of cordierite 2MgO·2Al2O3·5SiO2 (Mg2Al4Si5O18) or a mixed composition: magnesium-aluminum spinel and mullite. Therefore, the synthesized organomagnesiumoxane alumoxane siloxanes are preceramic oligomers and can be used as precursors for the preparation of various components (binders, impregnating compositions, fibers, ceramic powders) of high-purity ceramic composites based on magnesium, aluminum and silicon oxides.

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Organoelement chemistry: promising growth areas and challenges

Cited by 168 publications

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Pd^II(P‐P) Derivatives of o‐Quinone Annulated with Dithiete Cycle: Electrochemical Properties and Coordination Regioisomerism

Pd^II(P‐P) Derivatives of o‐Quinone Annulated with Dithiete Cycle: Electrochemical Properties and Coordination Regioisomerism

Features of Magnetic Behavior in the Row of Pentacoordinated Bis‐o‐Iminobenzosemiquinonato Metal (Al, Ga, In) Complexes

Synthesis of Preceramic Organomagnesium Oxanealumoxane Siloxanes

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Organoelement chemistry: promising growth areas and challenges

Cited by 168 publications

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PdII(P‐P) Derivatives of o‐Quinone Annulated with Dithiete Cycle: Electrochemical Properties and Coordination Regioisomerism

PdII(P‐P) Derivatives of o‐Quinone Annulated with Dithiete Cycle: Electrochemical Properties and Coordination Regioisomerism

Features of Magnetic Behavior in the Row of Pentacoordinated Bis‐o‐Iminobenzosemiquinonato Metal (Al, Ga, In) Complexes

Synthesis of Preceramic Organomagnesium Oxanealumoxane Siloxanes

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Pd^II(P‐P) Derivatives of o‐Quinone Annulated with Dithiete Cycle: Electrochemical Properties and Coordination Regioisomerism

Pd^II(P‐P) Derivatives of o‐Quinone Annulated with Dithiete Cycle: Electrochemical Properties and Coordination Regioisomerism