Synergistic effect of pyridine bases on the solvent extraction of nickel(II) with 2-thenoyltrifluoroacetone - Kawamoto, H.; Akaiwa, H. (Elsevier)
The synergistic effect of pyridine bases (B) in the extraction of nickel-thenoyltrifluoroacetonate Ni(TTA)"2 was studied. The results showed that the synergistic extraction was attributable to the formation of base adducts Ni(TTA)"2B and Ni(TTA)"2B"2, for which stabilities decreased in the following order: γ-picohne 〉,β-picoline 〉 pyridine 〉 α-picoline.The above trend was related to the basicity of the synergist and the steric influence of its orthosubstituent.
http://dx.doi.org/10.1016/0022-1902(69)80163-6
Keywords: V; ZP