Zobrazeno 1 - 10
of 64
pro vyhledávání: '"Sabi Varbanov"'
Publikováno v:
Journal of Radioanalytical and Nuclear Chemistry. 323:651-662
The uranyl ion extraction properties of an octaphosphinoylated para-tert-butylcalix [8] arene (B8bL8) in CHCl3 from an aqueous–acidic–saline medium containing a uranyl nitrate salt were investigated. UV–Vis and luminescence techniques allowed u
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::175c0d1598cc38bd18809d6dbbd72f16
https://doi.org/10.1007/s10967-019-06969-w
https://doi.org/10.1007/s10967-019-06969-w
Autor:
Sabi Varbanov, S. Shenkov, E. Tashev, Tania Tosheva, Ivan Dukov, Victoria Lachkova, Maria Atanassova, Nikolay Vassilev
Publikováno v:
Polyhedron. 134:135-142
A new lower rim phosphorus-containing calix[6]arene with six dimethyl-methylene phosphine oxide groups, namely 5,11,17,23,29,35-hexa(1,1,3,3-tetramethyl-butyl)-37,38,39,40,41,42-hexakis-(dimethylphosphinoylmethyleneoxy)-calix[6]arene (S), has been sy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7d3907c8f1db38d1b190bcffb161c979
https://doi.org/10.1016/j.poly.2017.06.013
https://doi.org/10.1016/j.poly.2017.06.013
Autor:
Flor de María Ramírez, Karen Palomares-Castillo, Blanca Ocampo-García, Sabi Varbanov, Enrique Morales-Avila
Publikováno v:
Polyhedron. 123:75-89
Spectrophotometric titrations of an octaphosphinoylated para-tert-butylcalix[8]arene (B8bL8) by uranyl nitrate and vice versa in anhydrous ethanol indicate that the species with 2:1 (uranyl:calixarene) stoichiometry is the major complex in solution.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::be1483468a270fa09415016d5c69c1de
https://doi.org/10.1016/j.poly.2016.11.016
https://doi.org/10.1016/j.poly.2016.11.016
Publikováno v:
Separation Science and Technology. 51:49-56
The solvent extraction of trivalent lanthanoids (Ln3+) by 5,11,17,23-tetra(para-tert-octyl)-25,26,27,28-tetrakis(dimethylphosphinoylmethoxy)calix[4]arene (S), bearing four phosphine oxide donor groups at the lower rim as synergistic agent in combinat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::57762c3349b1e890b12fa6e14bd92acc
https://doi.org/10.1080/01496395.2015.1078358
https://doi.org/10.1080/01496395.2015.1078358
Autor:
Tania Tosheva, Sabi Varbanov, Eduardo García-Villafaña, Flor de María Ramírez, E. Tashev, S. Shenkov
Publikováno v:
Polyhedron. 56:123-133
A new functionalised calixarene, para-tert-octylcalix[4]arene, fitted with phosphinoyl pendant arms (B4boctL4) 1, was synthesised and fully characterised. The procedure using xylene via a Williamson reaction between the tetra sodium derivative of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a314778ded358884035362ed228c8b41
https://doi.org/10.1016/j.poly.2013.04.003
https://doi.org/10.1016/j.poly.2013.04.003
Publikováno v:
Separation and Purification Technology. 95:58-63
Synergistic solvent extraction of selected trivalent lanthanoids (La, Nd, Eu, Ho and Lu) with mixtures of a chelating extractants (HL), either 4-(4-fluorobenzoyl)-3-methyl-1-phenyl-pyrazol-5-one (HPMFBP) or 3-methyl-4-(4-methylbenzoyl)-1-phenyl-pyraz
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3649207a3a6aa4831fc154d45c2a19f4
https://doi.org/10.1016/j.seppur.2012.04.022
https://doi.org/10.1016/j.seppur.2012.04.022
Autor:
M. A. Ocana-Bribiesca, F. de M. Ramirez, J.F. Rivas-Silva, M. A. Cortes-Jacome, J. A. Toledo-Antonio, Sabi Varbanov, J.-C. G. Buenzli
Publikováno v:
Radiochimica Acta. 100:359-369
The current interest in functionalized calixarenes with phosphorylated pendant arms resides in their coordination ability towards f elements and capability towards actinide/rare earth separation. Uranyl cation forms 1:1 and 1:2 (M:L) complexes with a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d2097168e35df1096822791e663523b9
https://doi.org/10.1524/ract.2012.1925
https://doi.org/10.1524/ract.2012.1925
Publikováno v:
Inorganica Chimica Acta. 378:163-168
Phosphinoylated calixarenes feature high coordination ability toward f elements and a great potentiality toward actinide/rare earth separation. Here, we report three characteristic properties of a tetra-phosphinoylated p-tert-butylcalix[4]arene, B(4)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ef4447ae4679fd43f91653eca99e795b
https://doi.org/10.1016/j.ica.2011.08.049
https://doi.org/10.1016/j.ica.2011.08.049
Publikováno v:
Industrial & Engineering Chemistry Research. 49:6189-6195
The solvent extraction of 14 lanthanoid(III) ions from a chloride medium with acidic chelating extractant 4-benzoyl-3-phenyl-5-isoxazolone (HPBI) and tert-butylcalix[4]arene tetrakis(N,N-dimethylac...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::86c40ccb5bc32ed1b5bb9f82d0a20bce
https://doi.org/10.1021/ie100328v
https://doi.org/10.1021/ie100328v
Publikováno v:
Zeitschrift für Naturforschung B. 65:556-564
Three new N-phosphinoyl-substituted aminomethanephosphonic acids have been synthesized and characterized: dimethylphosphinoylmethyl-imino-bis(methanephosphonic acid) (1), [3-(dimethylphosphinoyl)-propyl]-imino-bis(methanephosphonic acid) (2), and N-b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::58d8a47d9ed0baff0807a996d015cec8
https://doi.org/10.1515/znb-2010-0504
https://doi.org/10.1515/znb-2010-0504