Date of Award
1956
Document Type
Thesis
Degree Name
Master of Science
Department
Chemistry
Abstract
Chelation was reviewed with emphasis on the work done by contemporary workers.
The following polyhydroxyamine compounds were synthesized, purified and· analyzed:
1,2-bis[tris(hydroxymethyl)methylamino]ethane dihydrochloride
1,3-b1s[tris(hydroxymethyl)methylamino]propane dihydrochloride
1,3-b1s[tris(hydroxymethyl)methylamino]-2-propanone dihydrochloride
1,2,3-tris[tris(hydroxymethyl)methylamino)propane tri hydrochloride
The latter two compounds have not been reported in the literature.
Chelates were prepared by reacting the above compounds, and 1-3bis[tris(hydroxymethyl)methylamino]-2-propanol dihydrochloride ("disec") and the "disec" free base, with the ions of the first transition metals. Stability constants were obtained where appreciable coordination occurred before precipitation of the metallic ion took place . A list of the metal ions studied with one or more chelating agents follows: Cu+2, Ni+2, Co+2, Fe+3, Mn+2, Zn+2 and the rare earth ions
A stable, solid chelate compound formed by the "disec" free base and cupric ion was produced, recovered, purified, and studied briefly.
The work reported herein was done to further the knowledge of the basic chemtstry or the transition metal ion chelates with polhydroxyamine compounds. Accordingly, structures have been proposed for these compounds.
It is postulated that the bivalent transition metal ions are bonded through the secondary amino nitrogens or the polyhydroxyaminea. However, ferric ion is believed to be bonded to the oxygen of the secondary alcohol group in "disec" in addition to the amino nitrogen groups.
Recommended Citation
Moore, William Percy, "Chelation of the transition metal ions with a series of polyhodrozyamine compounds" (1956). Master's Theses. 916.
https://scholarship.richmond.edu/masters-theses/916