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• 269053-86-3 N(C₂H₅)4⁽¹⁺⁾*[Tb(C₆H₅C(O)NP(O)(OCH(CH₃)2)2)4]^(1-)=[N(C₂H₅)4][Tb(C₆H₅C(O)NP(O)(OCH(CH₃)2)2)4] 

Relevant academic research and scientific papers

Micelle-enhanced and terbium-sensitized spectrofluorimetric determination of gatifloxacin and its interaction mechanism

A terbium-sensitized spectrofluorimetric method using an anionic surfactant, sodium dodecyl benzene sulfonate (SDBS), was developed for the determination of gatifloxacin (GFLX). A coordination complex system of GFLX-Tb3+-SDBS was studied. It wa

SOLVOLYTIC DISPROPORTIONATION OF MIXED-VALENCE COMPOUNDS. II. Tb11O20. .

The intermediate higher oxides of terbium are solvolytically disproportionated in acid solution to yield Tb**3** plus (aq) ions and a residue of TbO//2(c). The starting material and the final solid product have fluorite-like structures requiring no reconstruction of the cation substructure. Tb//1//1O//2//0 was leached with a mixture of concentrated hydrochloric and acetic acids and the product examined utilizing electron microscopy to reveal the mechanism of the reaction. It is apparent that all the oxide is dissolved from selected reaction pits to yield Tb**3** plus (aq) ions and H//2O. This dissolution is accompanied by oxygen transport into remote regions where Tb//1//1O//2//0 is oxidized to TbO//2.

Liquid-liquid solvent extraction of rare earths from chloride medium with sec-nonylphenoxy acetic acid and its mixtures with neutral organophosphorus extractants

In the present study, sec-nonylphenoxy acetic acid (CA100) and its mixtures with four neutral organophosphorus extractants, tri-butyl-phosphate (TBP), 2-ethylhexyl phosphonic acid di-2-ethyl ester (DEHEHP), Cyanex923, and Cyanex925 have been applied to the extraction of rare earths. Results show that all the four mixing systems do not have evident synergistic effects on the extraction of rare earths. The different extraction effects have been considered to the separation of rare earths. The four mixtures may be applied to the separation of yttrium from some certain lanthanoids at proper mole fractions of CA100. Pleiades Publishing, Ltd., 2011.

Effect of the 18-crown-6 and benzo-18-crown-6 on the solvent extraction and separation of lanthanide(III) ions with 8-hydroxyquinoline

The synergistic solvent extraction of 13 lanthanides with mixtures of 8-hydroxyquinoline (HQ) and the crown ethers (S) 18-crown-6 (18C6) or benzo-18-crown-6 (B18C6) in 1,2-dichloroethane has been studied. The composition of the extracted species has been

Acid Solvolysis Kinetics of Lanthanide Porphyrins

The kinetics of the acid solvolysis reactions of twelve water-soluble lanthanide tetrakis(N-methyl-4-pyridyl)porphyrins (Ln-P) follow rate = k1+>2/ (k-1/k2) + +>> at 25 deg C, I = 0.8M (LiNO3/HNO3) indicating that two protons are required for solvolysis, and since log (k1k2/k-1) = 45.0R0 - 39.4 (R0 is the ionic radius in Angstroem), a 0.1 Angstroem change in radius has a 32000 fold rate effect.