Abstract
Abstract The temperature-jump technique has been used to determine the rate constants for the formation and dissociation of the mixed complex compounds Cu(Il)2,2′-bipyridylα-aminoacids and Cu(II) 1 ,10-phenanthrolineα-aminoacids at 25°C and I = 0.10 mol dm−3 NaClO4. The α-aminoacids used as the second ligand are proline,α-aminoisobutyric acid, valine and threonine. The formation constants of these ternary systems were determined by the pH method under the same expeTimental conditions. It has been found that the Bronsted type linear free energy relationships (LFER) do exist between the reaction rate constants and the equilibrium constants of these ternary complex compounds. With bipy 1 and phen in the inner coordination sphere of the copper ion, the rate-determining step involves both bond making and bond breaking processes and the mechanism likely falls into the SN2 category. The enhancement of stability of these ternary complex compounds relative to the parent binary systems was interpreted in terms of kinetic processes of complexation.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
