Zobrazeno 1 - 10
of 33
pro vyhledávání: '"Oleksandr Tymoshuk"'
Autor:
Oleksandr Tymoshuk, Lesia Oleksiv, Orest Fedyshyn, Petro Rydchuk, Vasyl Matiychuk, Taras Chaban
Publikováno v:
Acta Chimica Slovenica, Vol 67, Iss 3, Pp 970-976 (2020)
The paper presents a new azolidone derivative – 5-[2-(4-hydroxyphenyl)hydrazineylidene]-4-iminothiazolidin-2-one (HPIT) studies and its interaction results with iridium(IV) ions. The Ir(IV) with this reagent in the pH = 5.0 without heating forms a
Externí odkaz:
https://doaj.org/article/797d7e0b2e714970a5383acecc443483
Publikováno v:
Acta Chimica Slovenica, Vol 66, Iss 1, Pp 62-69 (2019)
The interaction of Ru(IV) ions with a novel analytical reagent – 5-hydroxyimino-4-imino-1,3-thiazolidone-2-one, by spectrophotometric method was investigated. The complex is formed at pH 5.0 in acetate buffer medium after heating in the boiling wat
Externí odkaz:
https://doaj.org/article/60738cc9a65d45b1b6d0860f02b61ddd
Publikováno v:
Acta Chimica Slovenica, Vol 62, Iss 1, Pp 159-167 (2015)
The spectrophotometric behavior of a new, first-time synthesized reagent – 4-[N’-(4-imino-2-oxo-thiazolidin-5-ylidene)hydrazino]-benzenesulfonic acid (ITHBA), has been investigated. A simple, rapid, accurate, selective and sensitive method for th
Externí odkaz:
https://doaj.org/article/36891ea2c1a243e097b20886d1fe275b
Publikováno v:
Chemistry & Chemical Technology. 15:324-329
The interaction of Pd(II) with 5-hydroxyimino-4-imino-1,3-thiazolidin-2-one (HITO) was investigated over the pH range of 1.0–10.0. Optimal conditions for the voltammetric determination of Pd(II) were established. A new voltammetric method of Pd(II)
Autor:
T. I. Chaban, Vasyl S. Matiychuk, V. Ya. Horishny, Yu. E. Matiichuk, Oleksandr Tymoshuk, Y. I. Horak
Publikováno v:
Russian Journal of Organic Chemistry. 56:1720-1727
Reactions of 5-(1,3-benzothiazol-2-yl)furan-2-carbaldehyde with 2-acetylfuran, 2-acetylthiophene, and some compounds containing an active methylene group gave a number of new 3-[5-(1,3-benzothiazol-2-yl)furan-2-yl]-1-(furan- or thiophen-2-yl)prop-2-e
Autor:
T. I. Chaban, Orest Fedyshyn, Oleksandr Tymoshuk, Vasyl S. Matiychuk, Lesia Oleksiv, Petro Rydchuk
Publikováno v:
Acta Chimica Slovenica, Vol 67, Iss 3, Pp 970-976 (2020)
The paper presents a new azolidone derivative – 5-[2-(4-hydroxyphenyl)hydrazineylidene]-4-iminothiazolidin-2-one (HPIT) studies and its interaction results with iridium(IV) ions. The Ir(IV) with this reagent in the pH = 5.0 without heating forms a
Autor:
Petro Rydchuk, Svitlana Tymoshuk, Mefodiya St., Lviv, Ukraine, T. I. Chaban, Lesia Oleksiv, Vasyl S. Matiychuk, Oleksandr Tymoshuk
Publikováno v:
Chemistry and Chemical Technology. 14:139-145
Publikováno v:
Materials Science. 55:455-459
We study the interaction of 4-methoxy-1-(5-benzylthiazol-2-yl)azo-naphthalene-2-ol with palladium (II) ions. The conditions required for the formation of a complex and for getting the optimal fractions of its components are established. We propose a
Publikováno v:
Acta Chimica Slovenica, Vol 66, Iss 1, Pp 62-69 (2019)
The interaction of Ru(IV) ions with a novel analytical reagent - 5-hydroxyimino-4-imino-1,3-thiazolidin-2-one, by spectrophotometric method was investigated. The complex is formed at pH 5.0 in acetate buffer medium after heating in the boiling water
Publikováno v:
Methods and Objects of Chemical Analysis. 14:130-139
5-Hydroxyimino-4-imino-1,3-thiazolidine-2-one has been suggested as a new organic reagent for the voltammetric determination of platinum. The optimal conditions of Pt(IV) voltammetric determination using 5-hydroxyimino-4- imino-1,3-thiazolidine-2-one