Graduation Year


Date of Thesis Acceptance

Spring 5-13-2015

Major Department or Program

Chemistry - Environmental Studies


Nathan Boland


Ligand exchange reactions greatly influence the bioavailability, fate, and transport of metal ions and pollutants in natural aqueous systems. Surfaces in these systems have been shown to influence these reactions, but the pathway by which this influence occurs is not well known. This research employs the macrocyclic ligand CYCLAM and its linear analog, which have very different interactions with surfaces, to probe the mechanism of influence. The ligand exchange reaction of Ni(II) from CYCLAM or its linear analog to CDTA was monitored using capillary zone electrophoresis and UV-vis detection. A kinetic model for the NiCYCLAM-CDTA exchange system is proposed and tested in the absence of a metal oxide surface. Further tests are needed to draw conclusions about the mechanism of surface influence on ligand exchange.

Page Count


Subject Headings

Soils -- Nickel content, Chelating Agents, Capillary Electrophoresis, Ligands (Biochemistry) -- Analysis, Surface chemistry -- Experiments, Metal ions -- Analysis, Pollutants, Chemical Reactions, Whitman College -- Dissertation collection 2015 -- Chemistry-Environmental Studies

Permanent URL

Document Type

Whitman Community Accessible Thesis

Terms of Use

If you have questions about permitted uses of this content, please contact the ARMINDA administrator



Rights Statement

Rights Statement

In Copyright. URI:
This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).