Synthesis, properties and applications of single-component anion-exchange materials

Several tetraalkylated ferrocenium salts and neutral modified ferrocenes, both new and previously synthesized, were studied in detail. Some of these salts have been used in the past as anion-exchange extractants for attenuated total reflectance-Fourier transform infrared (ATR-FTIR) spectroscopy. Different crystallographic, electrochemical and spectroscopic parameters were analyzed to study properties like cation size and its effect in selectivity, morphology of thin films made from these salts, both in the surface and in the bulk of the film, and film changes with time. It was found that when relative cation sizes are compared for different cations in these salts, the size increases in one dimension, which affects ion-exchange selectivity depending on what the non-aqueous phase containing the extractant is (either a water-immiscible solvent, a three-dimensional thin film or a monolayer self-assembled on an electrode surface). The effect of C-H...O hydrogen bonding in the cation-anion interactions was investigated. A model was proposed for the structure of thin films of a particular type of the ferrocenium salts, which was based on atom distances from the crystallographic data. Atomic force microscopy was used to study the morphology of surfaces of thin films, which had never been done before; the results were consistent with the hypothesis that there is a clear difference in the way that organic solutions of ferrocenium+NO 3- and ferrocenium+ClO 4- arrange molecularly as solvent evaporates, forming very different thin films.

Name thesis:degree_name

Doctor of Philosophy (Ph.D.)

Level thesis:degree_level

Doctoral

Discipline thesis:degree_discipline

Chemistry

Grantor dc:publisher

Colorado State University. Libraries

Year dc:date.issued

2009

Authors dc:creator

• Caamaño, Samira, author
• Strauss, Steven H., advisor

• ATR-FTIR
• dodecylsulfate
• ferrocenium
• heart valve
• SDS
• thin films
• analytical chemistry

Statement dc:rights

• Copyright and other restrictions may apply. User is responsible for compliance with all applicable laws. For information about copyright law, please see https://libguides.colostate.edu/copyright.

Language dc:language.iso

eng, English

Identifier URI

https://doi.org/10.25675/3.018506

OAI identifier oai:identifier

oai:mountainscholar.org:10217/237621