1,721,021 research outputs found
Reactions of 5-Sulphosalicylic acid with lanthanides(III) and thorium(IV) in aqueous solution.
No full textThe complex formation equilibria of 5-sulphosalicylic acid with lanthanide(III) and thorium(IV) ions have been studied by means of potentiometric [H+] measurements in aqueous solution at 20 °C in a 1M (Na,H)ClO4 medium. The analysis of the potentiometric data referring to pH ranges where the hydrolytic reactions of metal ions are negligible indicates the formation of chelate complexes of the type LnL and LnL23- for the rare earth ions and ThL+ for the thorium ion. The ligand behaves as chelating agent through both the deprotonated carboxylate and phenolate groups. The stability constants of the complexes are reported and discussed
Critical evaluaion of stability constants for alpha-hydroxycarboxylic acid complexes with protons and metal ions and the accompanying enthalpy changes .1. Aromatic ortho-hydroxycarboxylic acids
No full textLigand coordination to Silver(I) in dimethylsulfoxide: comparison of experimental and computational results
No full textInteraction of MO2++ ( M = U and Pu ) Ions with 5-Sulphosalicylic Acid in Aqueous Solution.
No full textIn aq. solns. with ionic strength of 1M (Na+, H+, ClO4-) at 20°, the stability consts. were log β = 11.30, 2.32, 10.30, and 9.24 for H+ + L3- ↔ HL2- (H3L = 5-sulfosalicylic acid), H+ + HL2- ↔ H2L-, UO22+ + L3- ↔ UO2L-, and PuO22+ + L3- ↔ PuO2L-, resp
“Lanthanide(III) Complex Formation with Diethylenetriamine in Anhydrous N,N-Dimethylformamide”.
No full textDFT study on the affinity of pyridine for Silver(I): the influence of coordinated solvent
No full text
Fotochimica degli attinoidi. IV. Meccanismo di fotoriduzione dello ione uranile in alcooli alifatici.
No full textThe photochemical reaction of aliphatic alcohols with uranyl(VI) ion was studied
Thermodynamic Properties of Actinide Complexes. Part VI. Thorium(IV) - Monochloroacetate System.
No full textmonochloroacetic acid were detd. in 1.00 M NaClO4 at 25 °C. Comparison is given with literature data for the Th(IV)-acetate system. The thermodn. values for the two systems indicate a lower stability for the Th-monochloroacetate complexes as compared to the Th-acetate complexes. The lower ligand basicity results in both a weaker metal-ligand interaction and a more extensive hydration of the complexes forme
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