Zobrazeno 1 - 10
of 101
pro vyhledávání: '"E. A. Varaksina"'
Autor:
Y. A. Belousov, M. A. Kiskin, A. V. Sidoruk, E. A. Varaksina, M. A. Shmelev, N. V. Gogoleva, I. V. Taydakov, I. L. Eremenko
Publikováno v:
Australian Journal of Chemistry. 75:572-580
Four new complexes [Ln(pfaa)3(H2O)2]n (Ln = Eu (1), Tb (2)) and [Ln2Cd2(pfaa)10 (phen)2(EtOH)2]·2MeCN (Ln = Eu (3), Tb (4), phen = 1,10-phenanthroline) based on pentaphorphenylacetic acid (Hpfaa) have been prepared and completely investigated. The s
Autor:
Mikhail A. Kiskin, Konstantin A. Lyssenko, Vladislav M. Korshunov, Lada N. Puntus, Ricardo O. Freire, E. A. Varaksina, Ilya V. Taydakov, Gustavo de Santana Silva
Publikováno v:
Physical Chemistry Chemical Physics. 23:25748-25760
A series of europium and gadolinium complexes comprising a β-diketone moiety modified with a fluorinated side-group and thiophene ring have been designed and synthesized and a comparative study of their luminescence properties has been carried out.
Autor:
Ilya V. Taydakov, Yu. V. Nelyubina, Yu. K. Voronina, G. G. Aleksandrov, F. M. Dolgushin, Mikhail A. Kiskin, N. V. Gogoleva, Igor L. Eremenko, E. A. Varaksina, M. A. Shmelev, Alexey A. Sidorov
Publikováno v:
Russian Chemical Bulletin. 69:1544-1560
The reaction of Cd(NO3)2 · 4H2O and Eu(NO3)3 · 6H2O or Tb(NO3)3 · 6H2O with potassium 3,5-di-tert-butylbenzoate (Kbzo) and N-donor ligands (1,10-phenanthroline (phen), 2,4-lutidine (2,4-lut), 3,4-lutidine (3,4-lut), phenanthridine (phtd), 2,3-cycl
Autor:
I. V. Taidakov, M. A. Shmelev, E. A. Varaksina, Konstantin A. Lyssenko, N. V. Gogoleva, Alexey A. Sidorov, M. A. Kiskin, Igor L. Eremenko, Fedor M. Dolgushin
Publikováno v:
Russian Journal of Coordination Chemistry. 46:493-504
The reactions of Cd(NO3)2 ∙ 4H2O and Eu(NO3)3 ∙ 6H2O with potassium salts of the benzoic acid derivatives and 2,2'-bipyridine (Bipy) in ethanol, under the same synthesis conditions, afford the homo- and heterometallic complexes: [Eu2Cd2(BA)8(NO3)
Autor:
E I Varaksina, V V Mayer
Publikováno v:
Physics in School. :3-11
Publikováno v:
Russian Journal of Coordination Chemistry. 46:15-22
The use of dicyanamide and chelating phenanthroline ligands resulted in the synthesis of organometallic europium and neodymium coordination polymers [Ln(Phen)2{N(CN)2}3–xClx(CH3OH)](CH3OH)y]∞ (Ln = Eu (I), Nd (II)) in which the dicyanamide ligand
Autor:
G. G. Aleksandrov, I. V. Taidakov, N. V. Gogoleva, Mikhail A. Kiskin, E. V. Aleksandrov, Igor L. Eremenko, Ilya A. Yakushev, E. A. Varaksina, M. A. Shmelev, Alexey A. Sidorov, Fedor M. Dolgushin, D. A. Makarov
Publikováno v:
Russian Journal of Coordination Chemistry. 46:1-14
New trinuclear Cd–Ln molecular complexes [EuCd2(O2CC6F5)6(NO3)(Bipy)2] (I, Bipy is 2,2'-bipyridine) and [LnCd2(Bzo)6(NO3)(Phen)2] · 4MeCN (Ln = Tb (II), Eu (III), Bzo is anion of 3,5-di-tert-butylbenzoic acid, Phen is 1,10-phenanthroline) are stud
Autor:
V V Mayer, E I Varaksina
Publikováno v:
European Journal of Physics. 44:025202
A simple demonstration installation is proposed, containing a plate air-dielectric capacitor, an alternating voltage generator, and three identical neon lamps. Two lamps are inserted in the breaks of the wires connecting the capacitor to the generato
Autor:
E. V. Parkevich, E. A. Varaksina, A. V. Oginov, Khristina Smaznova, M. A. Medvedev, A. I. Khirianova, Alexandr Selyukov, Timofey Khirianov
Publikováno v:
Optics express. 29(22)
Fine-structured sparks naturally formed in electrical gas discharges are challenging objects of optical research. The veracity of the spark structure image obtained by laser probing techniques is still a subject for discussion due to possible distort
Autor:
Ricardo O. Freire, Konstantin A. Lyssenko, A. S. Selyukov, Ilya V. Taydakov, E. A. Varaksina, Larissa T. Jesus, S. A. Ambrozevich
Publikováno v:
Journal of Luminescence. 196:161-168
Five novel europium β -diketonate complexes containing a pyrazole fragment were investigated. The influence of the number of fluorine atoms in diketonate ligands on luminescent properties was analyzed. Luminescence intensity of Eu 3 + complexes incr