С 89 Супрамолекулярные системы на основе производных каликс(4)резорциноренов и ПАВ в хлороформе [] = Supramolecular systems based on derivatives of calix[4]resorcinarenes and surfactants in chloroform / И. С. Рыжкина, К. М. Еникеев, А. П. Тимошева, Т. Н. Паширова, С. С. Лукашенко, Л. А. Кудрявцева, А. И. Коновалов, О. Н. Чупахин, Г. Л. Русинов, Н. А. Ициксон // Журнал структурной химии. - 2005. - V. 46, Приложение. - 70-75: рис., табл. - Библиогр. : с. 75 (20 назв.) . - ISSN 00136-746 Рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: Методом диэлькометрического титрования и 2D-cпектроскопии ЯМР 1H NOESY исследована агрегация и межмолекулярныевзаимодействия амфифильных каликс(4)резорцинаренов (КРА1,2), модифицированных гетероциклическими фрагментами, такими как 1.2.4-триазин(1) и оксазин(2), в отсутствие и в присутствии катионного (3) и неионного (4) поверхностно-активного вещества (ПАВ) в хлороформе. Значения критической концентрации мицеллобразования(ККМ) свидетельствуют о том, что способностьКРА1,2 к формированию супрамолекулярных агрегатов типа мицелл и смешанных мицелл с ПАВ3,4 слабо зависит от строения функциональных групп КРА. В смешанных мицеллах, ККМ которых определяется природой ПАВ3 или 4, обнаружены взаимодействия метильных и метиленовых групп гидрофобных заместителей КРА 1,2 с гидроксильными группами ПАВ3 или оксиэтиленовыми фрагментами ПАВ4 |
D 55 Diesters on the basis of 16-hydroxyisosteviol and dicarboxylic acids as carriers of Fe(III) picrates [Electronic resource] / V. E. Kataev, O. I. Militsina, I. Yu. Strobykina, A. T. Gubaidullin, V. V. Zverev, O. N. Kataeva, O. V. Fedorova, M. S. Valova, G. L. Rusinov // Journal of Inclusion Phenomena and Macrocyclic Chemistry. - 2008. - Vol. 60, № 1-2. - P51-58. - Библиогр. : с. 58 (32 назв.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: Diesters on the basis of 16-hydroxyisosteviol and dicarboxylic acids, exhibiting anti-tubercular activity, transport Fe(III) through liquid chloroform membrane which models a cell membrane. It is revealed that fluxes and anti-tubercular activity increase, as the length of the chain (spacer) between two ent-beyran skeletons of diesters increases. Computations on the level DFT/PBE explain the dependence of complexes stability on a structure of diterpenoid ligands. The structures of three diesters were established by single crystal X-ray analysis. ?? \\\\Expert2\\nbo\\Journal of Inclusion Phenomena and Macrocyclic Chemistry\\2008, V.60, N1-2, 51.pdf |
I-85 Isosteviol and some of its derivatives as receptors and carriers of amino acid picrates [Electronic resource] / V. E. Kataev, I. Yu. Strobykina, O. I. Militsina, M. G. Korochkina, O. V. Fedorova, I. G. Ovchinnikova, M. S. Valova, G. L. Rusinov // Tetrahedron Letters. - 2006. - Vol. 47, № 13. - P2137-2139 Рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: The ability of diterpenoid isosteviol 1 (ent-16-oxobeyeran-19-oic acid) and some of its derivatives with ester and amide groups to bind amino acid picrates in the course of their transport through a liquid chloroform membrane was observed for the first time. Isosteviol was very competitive with dibenzo-18-crown-6 and N,N?-bis(isostevioyl)-1,4-phenylenediamine 5 was even more effective in transportation of d,l-tryptophan through a liquid chloroform membrane. \\\\Expert2\\nbo\\Tetrahedron Letters\\2006, v. 47, p.2137.pdf |
S 93 Supramolecular systems formed by calix[4]resorcinarenes and surfactants in chloroform [Electronic resource] / I. S. Ryzhkina, O. N. Enikeev, O. N. Chupakhin, N. A. Timosheva, A. P. Pashirova, S. S. Lukashenko, L. A. Kudryavtseva, A. I. Konovalov, G. L. Rusinov, N. A. Itsikson // Journal of Structural Chemistry. - 2005. - V. 46, Supplement 1. - S70-S75 : il. - Bibliogr. : p. 75 (20 ref.) . - ISSN 00136-746 Рубрики: ХИМИЧЕСКИЕ НАУКИ \\\\Expert2\\nbo\\Journal of Structural Chemistry\\2005, V. 46, Suppl.N 1, p.S70.pdf |
F 33 Features of the reaction of 3(5)-methyl-5(3)-trifluoromethylpyrazole with chloroform. Synthesis and structure of fluorinated analogs of tris(pyrazol-1-yl)methane / N. S. Boltacheva, P. A. Slepukhin, M. G. Pervova, M. A. Samorukova, L. G. Lavrenova, V. I. Filyakova, V. N. Charushin // Russian Journal of General Chemistry. - 2012. - Vol.82, №8. - С. 1444-1450 Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): CHLOROFORM -- TRIFLUOROMETHYLPYRAZOLE -- TRIS(PYRAZOL-1-YL)METHANE Аннотация: Reaction of 3(5)-methyl-5(3)-trifluoromethylpyrazole (I) with chloroform leads to a complex mixture of compounds. The main components are {bis[(5-methyl-3-trifluoromethyl)pyrazol-1-yl](3-methyl-5-trifluoromethyl)pyrazol-1-yl}methane, bis{[(3-methyl-5-trifluoromethyl)pyrazol-1-yl](5-methyl-3-trifluoromethyl)-pyrazol-1-yl}methane, and tris[(3-methyl-5-trifluoro-methyl)pyrazol-1-yl]methane. The structure of isomeric substances was proved by XRD method \\\\Expert2\\nbo\\Russian Journal of General Chemistry\\2012, V. 82, N 8, p. 1444–1450.pdf |
C 91 Crystal structure, spectral and thermal properties of 1,2-bis[2-(4,4,4-trifluoro-1-hydroxy-3-oxobut-1-enyl)phenoxy]-ethane and luminescent properties of its complexes with Al(III) and Eu(III) [Electronic resource] / L. A. Khamidullina, K. L. Obydennov, P. A. Slepukhin, I. S. Puzyrev // Journal of Molecular Structure. - 2016. - Vol. 1125. - С. 550-557 Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): LANTHANIDE COMPLEXES -- ENOL-TAUTOMERISM -- BETA-DIKETONES Аннотация: Describing the crystal structure, packing, FT-IR, UV-Vis and NMR spectra and thermal properties of new polydentate O-ligand based on aryl-beta-diketone moieties connected by ethylene glycol spacer is the subject of this article. The results of IR, UV-Vis and H-1 NMR spectroscopy as well X-ray crystallography of 1,2-bis[2-(4,4,4-trifluoro-1-hydroxy-3-oxobut-1-enyl)phenoxy]-ethane (BTFPE) indicate that the compound exists in solution and in solid as enol. The crystal structure analysis shows that BTFPE has C2/c group of the monoclinic system. Typical S(6) intramolecular hydrogen bond occurs in each 1,3-diketo moiety. This bond is asymmetric and the H atom is closest to the 0 atom adjacent to the phenyl ring. The packing of the crystal is sustained by numerous C-H center dot center dot center dot O, O-H center dot center dot center dot F, C-H center dot center dot center dot F interactions. In the crystal, supramolecular zig-zag chains are formed along the c-axis. Short contacts interconnect the molecules into a two-dimensional layered structure wherein each molecule is node between chains. According to the thermal investigation this compound is stable up to 200 degrees C in air atmosphere, above this temperature it decomposes. Photoluminescent properties of aluminum(III) and europium(III) complexes of BTFPE were evaluated in chloroform solution and in the solid state. Aluminum complex of BTFPE shows blue luminescence with maximum at 445 nm. Europium complex exhibits intense red color luminescence at 613 nm from central Eu(III) ion through the excitation of the ligand. \\\\expert2\\NBO\\Journal of Molecular Structure\\2016, v.1125, p.550-557.pdf |