Výsledky vyhledávání - "Irina A. Popkova"

Study of basic properties of tert-butyl-substituted tribenzo(1,2,5-thiadiazolo)porphyrazines

Autor: A. A. Gaberkorn, Pavel A. Stuzhin, Claudio Ercolani, Irina A. Popkova

Publikováno v: Russian Journal of General Chemistry. 76:1494-1503

Basic properties of tri(4-tert-butylbenzo)[b,g,l](1,2,5-thiadiazolo)[3,4-q]porphyrazine and its Cu complex in the H2SO4-CH3COOH medium were studied by means of spectrophotometric titration. It was found that in going from an acetic acid solution 100%

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::aaf7336cc43179d6902c6c4a56b634b0
https://doi.org/10.1134/s1070363206090222

Zobrazit plný text záznamu

Tetrakis(selenodiazole)porphyrazines. 2: Metal complexes with Mn(II), Co(II), Ni(II), and Zn(II)

Autor: Elvira M. Bauer, Pavel A. Stuzhin, Irina A. Popkova, Claudio Ercolani, Silvia Angeloni

Publikováno v: Journal of Porphyrins and Phthalocyanines. :881-888

The present report describes two series of new porphyrazine macrocycles derived from tetrakis(selenodiazole)porphyrazine, TSeDPzH 2, having the formulae [ TSeDPzM ]( CH 3 COOH )( H 2 O )x M = Mn (II), Co (II), Ni (II), Zn (II); x = 4–6) and [ TSeDP

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5a10ee62914f68b62208e681835f0321
https://doi.org/10.1002/jpp.558

Zobrazit plný text záznamu

Tetrakis(selenodiazole)porphyrazines 1: Tetrakis(selenodiazole)porphyrazine and its Mg(II) and Cu(II) Derivatives. Evidence for their Conversion to Tetrakis(pyrazino)porphyrazines through Octaaminoporphyrazines

Autor: Elvira M. Bauer, Pavel A. Stuzhin, P. Galli, Claudio Ercolani, Irina A. Popkova

Publikováno v: Journal of Porphyrins and Phthalocyanines. :371-379

The new phthalocyanine-like macrocycle tetrakis(selenodiazole)porphyrazine, TSeDPzH 2, and its Mg ( II ) and Cu ( II ) complexes have been prepared and their general, spectroscopic (IR, UV-vis), and magnetic properties investigated. It has been obser

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::502af227da177f5469c941650d20b999
https://doi.org/10.1002/(sici)1099-1409(199906)3:5<371::aid-jpp140>3.0.co

Zobrazit plný text záznamu

Tetrakis(thiadiazolo)porphyrazines. 3. Acid-base Properties and stability of tetrakis-3,4-(1,2,5-thiadiazolo)-porphyrazine in silfuric acid solutions

Autor: Irina A. Popkova, E. A. Pozdysheva, Pavel A. Stuzhin, O. V. Mal’chugina, Claudio Ercolani

AM1 calculations gave the proton affinities of different types of donor sites in tetrakis-3,4-(1,2,5-thiadiazolo)porphyrazine, H2{[SN2)4PA}, and protonation of the meso-nitrogen atoms was found to be favored. A spectrometric study showed that the bas

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7cb546226f8296545ad9c62cb7ece065
http://hdl.handle.net/11573/25237

Zobrazit plný text záznamu

Vyhledávací nástroje:

Upřesnit hledání