Date of Award
12-1984
Degree Name
Master of Arts
Department
Chemistry
First Advisor
Dr. Ralph K. Steinhaus
Second Advisor
Dr. Michael McCarville
Third Advisor
Dr. James A. Howell
Access Setting
Masters Thesis-Open Access
Abstract
The reaction between copper(II) and N -(2-hydroxyethyl)iminodiacetatonickelate( II) (NiHEIDA) was studied between pH 4.0 and 5.6 over a 70 fold variation in copper concentration at an ionic strength of 1.25 and a temperature of 25° C. The reaction order in both NiHEIDA and Cu(U) is first. The reaction rate is pH sensitive and a hydrogen dependent pathway as w ell as copper dependent and copper and hydrogen independent pathways were found.
Evidence is given for a stepwise mechanism for the unwrapping of HEIDA from its nickel complex, follow ed by copper attack to give a dinuclear intermediate, which then breaks up to products. The first-order copper rate constant can be predicted from the stability of the dinuclear intermediate. No pronounced effect could be assigned to the hydroxyethyl segment of HEIDA reacting with either the incoming copper ion or the leaving nickel ion.
Recommended Citation
Weed, Craig R., "The Kinetics of the Metal Exchange Reaction between N-(2-Hydroxyethyl) Iminodiacetatonickelate (Il) and Copper(II)" (1984). Masters Theses. 1538.
https://scholarworks.wmich.edu/masters_theses/1538