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Complex Formation Constants for the Aqueous Copper(I)−Acetonitrile System by a Simple General Method

2001; American Chemical Society; Volume: 40; Issue: 16 Linguagem: Inglês

10.1021/ic001447b

1520-510X

Patrick Kamau, R. B. Jordan,

Chemical and Physical Properties in Aqueous Solutions

A simple spectrophotometric method for the evaluation of formation constants for aqueous copper(I) has been developed, based on the kinetics of reduction of Co(III)(NH(3))(5)X complexes. The method has been applied to the aqueous copper(I)-acetonitrile system to determine the successive formation constants beta(1), beta(2), and beta(3) as 4.3 x 10(2) M(-)(1), 1.0 x 10(4) M(-)(2), and 2.0 x 10(4) M(-)(3), respectively, in 0.14 M NaClO(4)/HClO(4) at 21 +/- 1 degrees C.