A. N. Turanov's research while affiliated with Russian Academy of Sciences and other places
What is this page?
This page lists the scientific contributions of an author, who either does not have a ResearchGate profile, or has not yet added these contributions to their profile.
It was automatically created by ResearchGate to create a record of this author's body of work. We create such pages to advance our goal of creating and maintaining the most comprehensive scientific repository possible. In doing so, we process publicly available (personal) data relating to the author as a member of the scientific community.
If you're a ResearchGate member, you can follow this page to keep up with this author's work.
If you are this author, and you don't want us to display this page anymore, please let us know.
It was automatically created by ResearchGate to create a record of this author's body of work. We create such pages to advance our goal of creating and maintaining the most comprehensive scientific repository possible. In doing so, we process publicly available (personal) data relating to the author as a member of the scientific community.
If you're a ResearchGate member, you can follow this page to keep up with this author's work.
If you are this author, and you don't want us to display this page anymore, please let us know.
Publications (209)
2,3-Bis- and 2,3,5,6-tetrakis(diphenylphosphoryl)-substituted pyrazines have been synthesized from the corresponding polychloropyrazines and ethyl diphenylphosphinite. They may serve as new N,O-bidentate organophosphorus ligands for extraction and recovery of f-block metal ions from nitric acid solutions.
1,3,5-Tris(2-diphenylphosphoryl-4-ethylphenoxymethyl)benzene (L′), a phosphorylcontaining tripodand, was synthesized for the first time in order to find extraction systems for efficient recovery of lanthanides. The main regularities of extraction of lanthanide(III) ions with mixtures of L′ and 4-benzoyl-5-methyl-2-phenyl-3-pyrazolone (HL) into CHCl...
2,3-Bis(diphenylphosphoryl)pyridine, a novel N,O-donor bidentate organophosphorus ligand, can serve as an efficient extractant for recovery of f-block elements from nitric acid solutions.
The extraction of lanthanides(III) from nitric acid solutions in the systems involving novel functionalized ionic liquids based on cationic carbamoyl(methyl)phosphine oxide (CMPO) derivatives and dinonylnaphthalenesulfonate anions in molecular diluents was studied. The stoichiometry of the Ln(III) extracted species was determined using slope analys...
The results of a study into the optical spectra of the transmitted and scattered radiation of a series of transformer oils are presented. For the first time, an accurate description of the reasons for the change in the color of transformer oil as a result of its degradation is provided.
The recovery and separation of trivalent lanthanides into individual elements is difficult owing to their similar chemical behaviours. In this study, the solvent extraction of trivalent lanthanide ions from nitric acid solutions in an organic phase comprising a mixture of two electrically neutral extractants, viz. tri(n-butyl)phosphate (TBP) and N,...
![FIG. 1. Structure of the synthesized complexes: 1-[Fe(salen)Sp 2 ]BPh 4...](profile/Michael-Volkov/publication/338383341/figure/fig1/AS:845409257799692@1578572682981/Structure-of-the-synthesized-complexes-1-FesalenSp-2-BPh-4-MeOH-2-FeacenSp-2_Q320.jpg)
In order to study the effect of the chemical structure of the equatorial ligand on the spin state of the Fe(iii) ion in complexes with invariable photoisomerizable 4-styrylpyridine axial ligands and different tetradentate Schiff bases, several new Fe(iii) complexes have been first synthesized, characterized, and studied by UV-vis, NMR, and EPR spec...
The extraction of REE(III), U(VI), and Th(IV) from nitric acid solutions with solutions of diphenyl(dibutylcarbamoylmethyl)phosphine oxide considerably increases in the presence of ionic liquids with the bis[(trifluoromethyl)sulfonyl]imide anion and quaternary ammonium cations. The stoichiometry of the extractable complexes was determined. The infl...
Extraction of rare-earth elements(III) ions from chloride solutions with mixtures of 1-phenyl-3-methyl-4-benzoyl-5-pyrazolone and phosphoryl-containing podands in organic solvents has been studied. The observed significant synergistic effect is associated with the formation of hydrophobic mixed-ligand complexes of rare-earth elements(III). The stoi...
Interphase distribution of La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, and Y between aqueous HCl solutions and solutions of carbamoylmethylphosphine oxides in the presence of binary extractants, quaternary ammonium dinonylnaphthalenesulfonates, has been studied. It has been shown that the efficiency of extraction of rare earth elements(...
The solvent extraction of Ln(III) ions from perchlorate aqueous solutions into an organic phase containing neutral polyfunctional organophosphorus ligands R2P(O)CH2OCH2C(O)NBu2 R = Bu (I), R = Ph (II) and R2P(O)CH2OCH2P(O)R¹2 R = R¹ = Bu (III); R = Bu, R¹ = Ph (IV); R = R¹ = Ph(V) has been studied. Their extraction behavior was compared with that o...
The extraction of microamounts of REE(III), U(VI), and Th(IV) from perchlorate solutions with solutions of tetraphenyl(o-oxyphenylenemethylene)diphosphine dioxide (I) in 1,2-dichloroethane was studied. The stoichiometry of the extractable complexes was determined, and the influence of the aqueous phase composition on the efficiency and selectivity...
Extraction of rare earth element(III) (REE) ions from chloride solutions with mixtures of 1-phenyl-3-methyl-4-benzoyl-5-pyrazolone and 2-phosphorylphenoxyacetamides in organic solvents has been studied. Observed considerable synergic effect is related to the formation of hydrophobic mixed-ligand REE(III) complexes. The stoichiometry of extracted co...
Extraction of rare earth element(III) (REE) ions from chloride solutions with picrolonic acid mixtures with phosphoryl-substituted aza podands in chloroform has been studied. A considerable synergetic effect observed has been caused by the formation of hydrophobic mixed-ligand complexes of REE. The stoichiometry of extracted complexes has been dete...
The extraction of REE(III), U(VI), and Th(IV) from nitric acid solutions with solutions of carbamoylmethylphosphine oxides (CMPOs) considerably increases in the presence of dinonylnaphthalenesulfonic acid. The stoichiometry of the extractable complexes was determined, and the influence of the aqueous phase composition, kind of organic diluent, and...
The magnetic properties of solutions of three Fe(III) complexes, [Fe(salten)Cl], [Fe(salten)(Pic)]BPh4 and [Fe(acen)(Him)2]BPh4, in CH2Cl2 were studied. The paramagnetic contribution of the complex molecules to the volume magnetic susceptibility of the solution was measured by NMR spectroscopy. The temperature dependences of μeff for the three solu...
The extraction of microamounts of U(VI), Th(IV), and REE(III) from HNO3 solutions in the form of complexes with 2,6-bis(diphenylphosphorylmethyl)pyridine N-oxide (I) was studied in relation to the kind of organic diluent and to the HNO3 concentration in the equilibrium aqueous phase. The stoichiometry of the extractable complexes was determined. Wi...
For the first time, the nuclear magnetic resonance method of “stationary coaxial ampoule” was used to study the temperature dependence of the paramagnetic contribution of iron-containing complex molecules to the volume magnetic susceptibility of a solution of this complex. It was found that when the complex [Fe(salten)Cl] is dissolved in the chloro...
Extraction of microamounts of REE(III), U(VI), and Th(IV) with solutions of carbamoylmethylphosphine oxides (CMPOs) in organic diluents from aqueous HNO3 solutions containing lithium bis[(trifluoromethyl) sulfonyl]imide (LiTf2N) was studied. The efficiency of the REE(III), U(VI), and Th(IV) extraction from nitric acid solutions with CMPO solutions...
The distribution of La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, and Y between aqueous HCl solutions and solutions of carbamoyl methyl phosphine oxides (CMPOs) has been studied in the presence of the 1-butyl-3-methylimidazolium bis[(trifluoromethyl)sulfonyl]imide ionic liquid (IL). The efficiency and selectivity of REE(III) extraction by...
Extraction of Ln(III), Sc(III), Ga(III), and Re(VII) ions by solutions of phosphorylated monopodands having [ortho-(diphenylphosphinylmethyl)-para-methyl]phenyl terminal groups, 2-Ph2P(O)CH2(4-Me)C6H3(OCH2CH2)n OC6H3(Me-4)CH2P(O)Ph2-2 (n = 1–5), in organic solvents has been studied. The stoichiometries of extractable complexes were determined. The...
Interfacial distribution of micro amount of ReO4⁻ between aqueous solutions of mineral acids and solutions of 2-phosphorylphenoxyacetamides in dichloroethane has been studied. Stoichiometry of extracted complexes has been determined; the effect of HNO3, HCl, and H2SO4 concentration in aqueous phase, extractant structure, and organic solvent nature...
Extraction of microamounts of U(VI), Th(IV), and REE(III) from HNO3 and HClO4 solutions with solutions of (α-pyridyl)tetraphenylmethylenediphosphine N,P,P'-trioxide in dichloroethane was studied. The stoichiometry of the extractable complexes was determined, and the influence of the extraction structure and aqueous phase composition on the efficien...
The extraction of lanthanides(III) from aqueous nitric acid solutions with N,N,N’,N’-tetra(n-octyl)diglycolamide (TODGA) and with mixtures of TODGA and the hydrophobic ionic liquid (IL) [C4mim][Tf2N] into 1,2-dichloroethane (DCE) has been investigated. The extraction efficiency of Ln(III) ions was greatly enhanced by the addition of a small amount...
Extraction of microamounts of REE(III), U(VI), and Th(IV) from HClO4 solutions with solutions of N,N,N′,N′-tetrabutyl-2-(di-p-anisylphosphinoyl)butanediamide (I) in organic diluents was studied. The stoichiometry of the extractable complexes was determined, and the effect of the organic diluent and aqueous phase composition on the efficiency and se...
The solvent extraction of lanthanides(III) from hydrochloric acid solutions into the organic phase containing neutral bidentate extractant tetraphenylmethylenediphosphine dioxide (L) and picrolonic acid (HP) has been studied. A considerable synergistic effect was observed in the presence of HP in the organic phase containing neutral bidentate organ...
Extraction of micro amounts of La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, and Y with solutions of 2-[2'-(methoxydiphenylphosphoryl)phenyldiazenyl]-4-tert-butylphenol in 1,2-dichloroethane in the presence of 1-butyl-3-methylimidazolium and trioctylmethylammonium picrates has been studied. The stoichiometry of extracted complexes has bee...
Interfacial distribution of La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, and Y between aqueous solutions of their salts and solutions of functionalized ionic liquid, 1,11-bis(1-methylimidazol-3-yl)-3,6,9-trioxaundecane bis(hexafluorophosphate) has been studied. The stoichiometry of extracted complexes has been determined, the effect of H...
Bis(carbamoylmethylphosphine oxide) ligands fixed on the arene core via 1,2,3-triazole linkers: Novel effective extractants for palladium, lanthanides and actinides
All authors
E. V. Sharova, G. K. Genkina, O. I. Artyushin, N. M. Vinogradova, A. N. Turanov & V. K. Karandashev
https://doi.org/10.1080/10426507.2016.1213256
Published online
03 Augus...
Phosphorylation of natural products—Cytisine, anabasine, and camphor using click chemistry methodology
All authors
E. V. Sharova, G. K. Genkina, N. M. Vinogradova, O. I. Artyushin, O. I. Yarovaya & V. K. Brel
https://doi.org/10.1080/10426507.2016.1213257
Published online
02 August 2016
The extraction of microamounts of U(VI), Th(IV), and REE(III) from HNO3 and NH4NO3 solutions with solutions of diaryl(dialkylcarbamoylalkyl)phosphine oxides containing a dialkylcarbamoylmethyl substituent in the alkylene bridge was studied. The stoichiometry of the complexes extracted from nitric acid solutions with N,N,N',N'-tetrabutyl-2-(di-p-ani...
The distribution of Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, and Sc between aqueous solutions of their salts and solutions of 2-phosphorylphenoxy acid amides in dichloroethane containing an ionic liquid (1-butyl-3-methylimidazolium bis[(trifluoromethyl)sulfonyl]imide) have been studied. Metal ion extraction has been found to incre...
The extraction of uranium(VI) from aqueous nitric acid solutions with a neutral extractant, N,N,N’,N’-tetra(n-octyl)diglycolamide (TODGA), and with the mixtures of TODGA and a hydrophobic ionic liquid, 1-butyl-3-methylimidazolium bis(trifluoromethanesulfonyl)imide ([C4mim][Tf2N]), into a molecular diluent, 1, 2-dichloroethane, has been systematical...
A novel polydentate neutral organophosphorus ligand 1 containing two Ph2P(O)CH2C(O)NH- bidentate moieties connected by a 4, 7, 10 - trioxatridecane spacer through amide nitrogen atoms was synthesized and studied as an extractant for U(VI), Th(IV) and lanthanides(III) ions from HNO3 solutions. The influence of aqueous and organic phases on the extra...
The extraction of microamounts of U(VI), Th(IV), and rare earth elements(III) [REE(III)] from HNO3 solutions with solutions of 4,4-bis(diphenylphosphoryl)butan-2-one in dichloroethane was studied. The stoichiometry of the extractable complexes was determined, and the influence of the extractant structure, kind of organic diluent, and aqueous phase...
Abstract Extraction of micro quantities of rare-earth elements(III) from HNO3 solutions as complexes with bis(diarylphosphorylmethyl)benzenes depending on the nature of organic diluent and HNO3 concentration in equilibrium aqueous phase was studied, the stoichiometry of extracted complexes was determined. The effect of structure of a bridge between...
The extraction of microquantities of U(VI), Th(IV), and lanthanides(III) from nitric acid solutions with CMPO-functionalized ionic liquid 1-[3[[(diphenylphosphinyl)acetyl]amino]propyl]-3-tetradecyl-1H-imidazol-3-ium hexafluorophosphate, CMPO-FIL(I) in molecular organic diluents has been studied. The effect of HNO3 concentration in the aqueous phase...
A series of phosphoryl podands of acid type, differing in the length of the polyether chain and structure of the terminal group, were synthesized. The compounds obtained were tested as complexing components of impregnation-type sorbents. The regular trends of the Mo sorption from model solutions of ammonium molybdate in HNO3 in relation to the qual...
Liquid-crystalline mono-and binuclear complexes of Fe(III) based on pentadentate Schiff’s base, N,N′-bis(2-hydroxy-4-octadecyloxybenzyliden)-1,7-diamino-4-azaheptane, have been prepared for the first time. The effects of counterions of the binuclear complexes and of the monodentate ligand in the mononuclear complexes on formation of the mesophase a...
Sorption of microamounts of rare earth elements(III) from HNO3 solutions with complexing sorbents prepared by noncovalent immobilization of diphenyl(dibutylcarbamoylmethyl)phosphine oxide and an ionic liquid, 1-methyl-3-butylimidazolium bis[(trifluoromethyl)sulfonyl]imide, on the surface of carbon nanotubes was studied in relation to the component...
Interphase distribution of micro amounts of ReO
4
−
between aqueous solutions of mineral acids and solutions of phosphoryl-containing mono-, di-, and tripodands, derived from 1-(methoxydiphenylphosphoryl)-2-diphenylphosphorylbenzene in dichloroethane was studied. The stoichiometry of extracted complexes was determined, the effect of HNO3, HCl, and...
Photoisomerization of 4-styrylpyridine at different irradiation wavelengths (λ 365 and 254 nm) and in different solvents was studied by UV and 1H NMR spectroscopy. A procedure for recording the UV spectra of 4-styrylpyridine dissolved in liquid crystalline films freely suspended within a frame. The results of quantum-chemical calculations of the ge...
A solid-phase composite material based on multi-walled carbon nanotubes and an ionic liquid (1-butyl-3-methylimidazolium hexafluorophosphate) has been synthesized. It has been found using infrared spectroscopy that vibrational modes of the ionic liquid are shifted by 4–12 cm−1 toward lower energies with respect to those observed in the initial flui...
The extraction of microamounts of REEs(III), U(VI), and Th(IV) from HNO3 solutions with solutions of acidic phosphoryl-containing podands in 1,2-dichloroethane was studied. The stoichiometry of the extractable complexes was determined. The influence of the extractant structure and aqueous phase composition on the efficiency and selectivity of the r...
The structural composition of fresh and aged (under model conditions) GK-grade transformer oil and petrolatum oil is studied by UV and 1 N NMR spectroscopy. Comparative experimental studies showed that sediment formation in transformer oil depends essentially on aromatic compounds rather than oxidized compounds, i.e. after reaching a certain concen...
The extraction of microamounts of REEs(III), U(VI), and Th(IV) from HNO3 solutions with solutions of acidic phosphoryl-containing podands in 1,2-dichloroethane was studied. The stoichiometry of the extractable complexes was determined. The influence of the extractant structure and aqueous phase composition on the efficiency and selectivity of the r...
Solid components contained in aged GK-type transformer oil are studied employing scanning electron microscopy and X-ray energy-dispersion spectroscopy. The composition and properties of sulfur compounds are shown to change markedly in the oil-performance process, including conversion of non-corrosive compounds to corrosive ones.
EPR spectra in the characteristic frequency range and 1H, 13C, and 17O NMR spectra of fresh, used, and aged (under model conditions) GK grade transformer oil are recorded and analyzed. The EPR spectra show signals from Er3+, Yb3+, Fe2+, and Fe+ in the oxygen environment, and Ti3+ in the sulfur environment. It is shown that 1H NMR spectroscopy is a...
The extraction of REEs(III), U(VI), and Th(IV) from nitric acid solutions with solutions of diphenyl(dialkylcarbamoylmethyl)phosphine oxides is considerably enhanced in the presence of an ionic liquid, 1-butyl-3-methylimidazolium bis[(trifluoromethyl)sulfonyl]imide. The extraction efficiency varies in a wide range depending on substituents at the P...
![Table 1 Parameters of the porous systems of C-IOP and the K L and [L]...](profile/Gennadi-Emelchenko/publication/240308279/figure/tbl1/AS:705426941280257@1545198297881/Parameters-of-the-porous-systems-of-C-IOP-and-the-K-L-and-L-s-max-values-determined_Q320.jpg)
Interfacial distribution of trace amounts of ReO
4− ions between aqueous solutions of mineral acids and solutions of diphosphoryl-substituted aza podand [Ph2P(O)CH2CH2OCH2CH2]2NBu (I) in dichloroethane was studied. The stoichiometry of extracted complexes was determined, the influence of HClO4, HNO3, HCl, and H2SO4 concentration in aqueous phase an...
The room-temperature IR spectra of fresh, used, and aged under model conditions GK trans-former oil, as well as of its residue, are recorded, interpreted, and compared. Analysis of the data obtained confirms the presence of small amounts of aromatic compounds in these samples and shows that the fraction of aromatic and oxidized compounds in transfo...
GK-grade transformer oil is investigated by methods of nuclear magnetic relaxation and Z-scanning. The size of the heterogeneous structures in the oil increases during its service. The solid-particle content in the liquid phase, however, remains essentially unchanged, and the excess particles precipitate. The feasibility of quantitative determinati...
Extraction of REE(III) microamounts from HNO3 and HCl solutions with mixtures of mono- and bis-carbamoylmethylphosphine oxides with picrolonic acid in 1,2-dichloroethane was studied. The strong synergistic effect observed is due to increased hydrophobicity of the extractable complexes. The influence of the structure of carbamoylmethylphosphine oxid...
Radiation spectra of fresh and aged (under model conditions) Grade GK transformer oil in the 200-650-nm wavelength range at ambient temperatures are recorded, interpreted, and compared. The presence of small concentrations of anthracene and its derivatives in the specimens is confirmed. A linear relationship between radiation intensity and acid num...
Novel polyfunctional neutral organophosphorus ligands, namely 1,5-N,N'-bis[(diphenylphosphoryl)acetyl(alkyl)amino]pentanes [Ph2P(O)CH2C(O)NR]2(CH2)5 (Ia, R=C6H13; Ib, R=CH3), were studied as extractants for Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Th, and U from nitric acid solutions. The effect of both HNO3 concentration in the a...
Extraction of microamounts of U(VI), Th(IV), and REE(III) from HNO3 solutions in the form of complexes with 1,7-bis(dibutylcarbamoyl)-1,7-bis(diphenylphosphinyl)heptane (I) was studied. The influence of the composition of the aqueous and organic phases on the extraction efficiency was considered, and the stoichiometry of the extractable complexes w...
The extraction of microamounts of Sr(II) from aqueous solutions with solutions of bidentate neutral organophosphorus compounds is considerably enhanced in the presence of ionic liquids. The efficiency of the Sr(II) extraction varies in a wide range depending on the nature of the coordinating groups in the extractant molecule, substituents at the P...
The extraction of microquantities of La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, and Y from nitric acid solutions into an organic phase containing N,N′-bis(diphenylphosphinyl-methylcarbonyl)diaza-18-crown-6 and ionic liquid (IL) 1-butyl-3-methylimidazolium bis[(trifluoromethyl)sulfonyl]imide (BMImTf2N) has been studied. The effect of HN...
The study considers the possibility of using inductively coupled plasma mass spectrometry (ICP MS) for the determination of admixtures of Zr, Nb, Mo, Hf, Ta, W, and Te in rare-earth metals and their compounds using preliminary extraction or extraction-chromatographic preconcentration. The admixture elements have been separated by extraction with tr...
Interfacial distribution of rare earth elements (REE) La, Ce, Pr, Nd, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, and Y between aqueous solutions of their nitrates and solutions of the lariat crown ether 1,4,10,13-tetraoxa-7,16-diaza(diphenylphosphinylmethyl)cyclooctadecane in dichloroethane was studied in the presence of the ionic liquids 1-butyl-3-methyl...
The extraction of microamounts of REE(III), U(VI), and Th(IV) from HNO3 solutions in the form of complexes with a polyfunctional neutral organophosphorus compound, 1,3-bis[(diphenylphosphorylacetamido)-methyl]benzene, was studied. The influence exerted by the structure of the bridge binding two carbamoylmethyl-phosphine oxide fragments on the effic...
Extraction of microamounts of U(VI), Th(IV), and REE(III) from HNO3 solutions with solutions of (N,N-dialkylcarbamoylmethyl)- and (N-alkylcarbamoylmethyl)phenylphosphinic acids in dichloroethane was studied. The stoichiometry of the extractable complexes
was determined, and the influence exerted on the efficiency of the U(VI), Th(IV), and REE(III)...
The extraction of microamounts of U(VI) and Th(IV) from HNO3 solutions in the form of complexes with bis(dioctylphosphinylmethyl)phenylphosphinic acid was studied. The stoichiometry of the extractable complexes was studied, and the influence of the extractant structure on the efficiency and selectivity of the U(VI) and Th(IV) extraction was examine...
The interphase distribution of microamounts of nitrates and perchlorates of Sc, Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho,
Er, Tm, Yb, and Lu between aqueous solutions of NH4NO3 or NH4ClO4 and solutions of a phosphorylated podand [Ph2P(O)CH2CH2OCH2CH2]2NBu in dichloroethane was studied. The stoichiometry of extracted complexes was determined. The e...
Extraction of microamounts of U(VI), Th(IV), and REE(III) from HClO4 solutions with solutions of bidentate phosphoryl-substituted butyl phenylphosphinates R2P(O)CH2P(O)Ph(OBu) [R = phenyl (I), octyl (II)] in dichloroethane was studied. The effect of substituents at the phosphorus atom in the phosphine oxide moiety of these
compounds on their extrac...
GK transformer oil is studied using the methods of UV and visible spectroscopy, dynamic light scattering, small-angle light scattering, scanning electron microscopy, and element analysis. The effect exerted on the optical properties of transformer oil by colloidal, micelle-like, and solid particles formed in oil during its exploitation is investiga...
Introduction of long-chain alkoxy substituents into molecules of styrylpyridines as potential ligands for photosensitive metal
complexes endows them with liquid crystalline properties over a wide temperature range. trans-cis Photoisomerization of 4-alkoxystyrylpyridines in solution was revealed by NMR and electronic absorption spectroscopy, and
the...
The extraction of trace amounts of scandium(III) from HCl,HNO3, and HClO4 solutions in the form of complexes with neutral polyfunctional organophosphorus compounds bis(diphenylphosphorylmethylcarbamoyl)alkanes
[Ph2P(O)CH2C(O)NH]2(CH2)
n
(n = 3, 5, 8) was studied. The effect of the structure of the extractant, the aqueous phase composition, and the...
Procedures for the analysis of molybdenum oxide by of inductively coupled plasma atomic emission spectroscopy (ICP-AES) and mass spectrometry (ICP-MS) are proposed on the basis of preliminary extraction separation of molybdenum from impurity elements. To separate 39 impurity
elements (Li, Be, Na, Mg, Al, K, Ca, Sc, Ti, Cr, Mn, Fe, Co, Ni, Zn, Ga, R...
The EPR and NMR spectra of fresh and spent transformer oil of the GK brand are described and interpreted. The use of magnetic
resonance radiospectroscopy is shown to be promising for rapid analysis and control of processes that occur during servicing
of transformer oil.
Boron difluoride 2-alkyl-β-diketonates possessing liquid crystal polymorphism and luminescence properties were first obtained.
Influence of the ligand structure on the liquid crystal properties of the boron difluoride complexes was demonstrated.
Extraction of microamounts of Sr(II) from aqueous solutions with solutions of carbamoyl phosphine oxides in the presence of
ionic liquids was studied. The influence of the structure of the extractants and ionic liquids on the efficiency of the Sr(II)
extraction was examined, and the stoichiometry of the extractable complexes was determined. The pos...