Zobrazeno 1 - 10
of 79
pro vyhledávání: '"V. F. Zinchenko"'
Publikováno v:
Vìsnik Odesʹkogo Nacìonalʹnogo Unìversitetu: Hìmìâ, Vol 25, Iss 3(75), Pp 56-62 (2020)
The relationship between the acid-basic properties and the electronegativity of oxygen-containing compounds of Uranium, namely, oxides, hydroxide, uranates, uranyl salts and oxohalides is examined. It is shown that Uranium dioxide and Uranium trioxid
Externí odkaz:
https://doaj.org/article/c48b6e42e3534cd4a4ff33e607f04bf8
Autor:
V. F. Zinchenko, V. V. Menchuk
Publikováno v:
Vìsnik Odesʹkogo Nacìonalʹnogo Unìversitetu: Hìmìâ, Vol 25, Iss 3(75), Pp 43-55 (2020)
The question of the quantitative determination of the amphotericity of oxides by the values of their electronegativity is considered. The approximate boundaries of the electronegativity of amphoteric oxides from 1.6 to 2.2 eВ1/2/О2- are established
Externí odkaz:
https://doaj.org/article/f6bf7f563cbe4cddb986131bb4c45655
Publikováno v:
Vìsnik Odesʹkogo Nacìonalʹnogo Unìversitetu: Hìmìâ, Vol 25, Iss 2(74), Pp 32-43 (2020)
A fundamentally new type of materials – composites based on the Germanium- metal oxide systems – for applying interference coatings of IR spectral optics has been developed. The formation of a pair of volatile substances (one of them being German
Externí odkaz:
https://doaj.org/article/a155a7f801204541a4b6f4c44d2bc50b
Publikováno v:
Vìsnik Odesʹkogo Nacìonalʹnogo Unìversitetu: Hìmìâ, Vol 25, Iss 1(73), Pp 14-23 (2020)
The general nature of the relationship between the acid-base properties (electronegativity) of 3d-metal salts and their ability to form aqua and ammine complex compounds (hydrates and ammoniates) has been established. The thermal strength of metal-li
Externí odkaz:
https://doaj.org/article/66b10d3f36ea49ee9105f9a4f292a73a
Autor:
V. F. Zinchenko, V. V. Menchuk
Publikováno v:
Vìsnik Odesʹkogo Nacìonalʹnogo Unìversitetu: Hìmìâ, Vol 23, Iss 3(67), Pp 6-15 (2018)
Various definitions (by Brǿnsted – Lauri , Lux – Flood, Lewis )of the basicity – acidity for the systems of different types have been regarded. The necessity and possibility of the establishment of a general approach to definition of the menti
Externí odkaz:
https://doaj.org/article/51855a13448047f1a1c03f373bbebf75
Publikováno v:
Фізика і хімія твердого тіла, Vol 19, Iss 2, Pp 163-170 (2018)
Because of X-ray amorphous character of GeO and B2O3 for study of interaction between them methods of IR transmission spectroscopy and spectroscopy of diffuse reflectance are applied. Essential change of positionand intensity of bands of absorption i
Externí odkaz:
https://doaj.org/article/4094792047704c19962b7090ef235497
Autor:
V. F. Zinchenko, O. G. Erymin, L. F. Koshkina, G. V. Nechyporenko, I. V. Stoianova, P. G. Doga
Publikováno v:
Vìsnik Odesʹkogo Nacìonalʹnogo Unìversitetu: Hìmìâ, Vol 23, Iss 1(65), Pp 16-26 (2018)
Methods of luminescent spectroscopy, spectroscopy of diffuse refl ectance and IR transmittance spectroscopy were used for investigation of process of change of nanostructures of Europium (ІІ) fl uoride in stiffened saline melt NaСl – KСl. Europ
Externí odkaz:
https://doaj.org/article/2c787d3ffe45468a8bd042dc038cc57b
Publikováno v:
Фізика і хімія твердого тіла, Vol 18, Iss 3, Pp 347-353 (2018)
Using methods of IR transparency spectroscopy in a range of 1200 – 200 cm-1 and diffuse reflectance spectroscopy in a range of 200 – 2500 nm the character of interaction in the systems Ge-In2O3, Ge-In2SnO5, Ge-LnInO3 (Ln - La, Sm, Eu) is investig
Externí odkaz:
https://doaj.org/article/54ac697d1a2b45ddac5a6a715e2cd101
Publikováno v:
Vìsnik Odesʹkogo Nacìonalʹnogo Unìversitetu: Hìmìâ, Vol 22, Iss 4(64), Pp 45-52 (2017)
Peculiarities of the change of acid-basic properties of Silicon and Germanium oxy-compounds as a function of the position of elements in the periodic system are established. It is stated that Germanium dioxide possesses much lower (compared to SiO2 a
Externí odkaz:
https://doaj.org/article/92a922e9219346ebbdc39cab1c8b32e9
Autor:
I. V. Stoyanova, N. А. Chivireva, V. P. Antonovich, G. V. Nechyporenko, L. F. Koshkina, V. F. Zinchenko
Publikováno v:
Vìsnik Odesʹkogo Nacìonalʹnogo Unìversitetu: Hìmìâ, Vol 22, Iss 2(62), Pp 22-31 (2017)
Processes of dispersion and solubility of CeO2 and CeF3 in the melts of systems NaNO3-KNO3 which are widely used as medium for synthesis of various oxide materials are investigated. The basis of the mechanism of the specified processes is made by the
Externí odkaz:
https://doaj.org/article/f890182aa3c84060bd6670b3b13ba4bb