Cyanide thermodynamics 2. Stability constants of copper(I) cyanide complexes in aqueous acetonitrile mixtures
Kurnia, K., Giles, D.E., May, P.M., Singh, P. and Hefter, G. (1996) Cyanide thermodynamics 2. Stability constants of copper(I) cyanide complexes in aqueous acetonitrile mixtures. Talanta, 43 (12). pp. 2045-2051.
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The stability (formation) constants of the binary Cu(I)-CN− complexes have been measured in five aqueous mixtures containing from 10% to 70% v/v acetonitrile (MeCN) by glass electrode potentiometry at 25 °C and an ionic strength of l M (NaClO4). The constants show monotonic increases with MeCN concentration, the changes being greatest for the higher order complexes, consistent with the unfavourable solvation of CN − in these mixtures. The sparing solubility of CuCN(s) prevented determination of the stability constant for CuCN 0 (soln.) at low MeCN concentrations.
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|Murdoch Affiliation:||School of Chemical and Mathematical Science|
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