2026-09-27T02:50:09Zhttps://mro.massey.ac.nz/server/oai/requestoai:mro.massey.ac.nz:10179/9152025-11-12T14:02:41Zcom_10179_294col_10179_296
DSpace at Massey University
author
Knapp, Quintin Wayne
2009-07-14T01:46:09Z
NO_RESTRICTION2009-07-14T01:46:09Z
2009
http://hdl.handle.net/10179/915
Q112881213
https://www.wikidata.org/wiki/Q112881213
The application of neutral dicopper helicates to the encapsulation of a number of
anions was investigated. Two dicopper salen derived helicates were studied which
contained phenolic and either iminophenyl (1) or oxime (2) donor groups. UV-visible
spectroscopy was used to determine the binding stoichiometry and formation constants
of the anion complexes. Complex binding was supported by electrospray ionisation
mass spectrometry. Receptor 1 possessed a remarkable selectivity for sulfate in
isopropanol (IPA) for which a log K value of 5.07 ± 0.24 was obtained. Receptor 2
bound all anions studied more strongly than 1. Crystal structural data supports the
proposition that there is a steric barrier to contraction of 1 from the bulky iminophenyl
groups. Receptor 2 was not restricted by the small oxime moieties allowing for
optimum copper-anion interactions.
en
The Author
Anion complexes
Sulphate
Iminophenyl
Copper-anion interaction
The spectroscopic analysis of di-copper helicates as receptors for encapsulating anions : a thesis presented in partial fulfilment of the requirements for the degree of Master of Science in Chemistry at Massey University, Palmerston North, New Zealand
Thesis
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