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Investigations into magnetic relaxation for vanadium complexes

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dc.contributor.authorJackson, Cassidy Elizabeth, author
dc.contributor.authorZadrozny, Joseph M., advisor
dc.contributor.authorShores, Matthew P., committee member
dc.contributor.authorChen, Eugene, committee member
dc.contributor.authorRoss, Katherine, committee member
dc.date.accessioned2022-05-30T10:22:32Z
dc.date.available2024-05-24T10:22:32Z
dc.date.issued2022
dc.description.abstractMagnetic molecules represent an emerging class of complexes that can be used to understand quantum phenomena impactful for quantum computing, non-invasive magnetic resonance imaging, and information storage. These organometallic complexes have the electronic spin is centered on the metal ion. Magnetic molecules based on electronic spins are extremely sensitive to changes in their local environment, such as nuclear spins. Electronic spins on a metal ion were employed to understand how nuclear spins in the local environment modulate electron spin dynamics. In this work, vanadium(IV) was chosen to study with varying catechol ligands. Electron paramagnetic resonance (EPR) was used to study two properties of these metal complexes, spin-lattice relaxation (T1) and phase memory relaxation (Tm or T2). Investigation of these parameters and fitting of these parameters provided information of how the local environment played a role in shortening these lifetimes. The complexes developed in this work indicates that the local environment is an extremely important piece of relaxation due to drastic changes in relaxation times. Chapter 1 introduces provides motivation for the work conducted in this dissertation and gives a thesis structure overview. Chapter 2 gives a broad summary of the field of molecular magnetism and provides metaphors for the synthetic chemist to learn about electron spin relaxation. Chapters 3 gives the first report of nuclear spin patterning on a ligand shell impacting spin relaxation times Chapter 4 details high-field, high-frequency orientation dependence on spin relaxation times for the V(IV) ion. Chapter 5 explores proton nuclear spin dynamics as they relate to nuclear spin patterns on a ligand and ligand complexed to a diamagnetic metal ion. Chapter 6 explores counterion dynamics and how they impact spin relaxation times. Chapter 7 gives a summary and future directions.
dc.format.mediumborn digital
dc.format.mediumdoctoral dissertations
dc.identifierJackson_colostate_0053A_17062.pdf
dc.identifier.urihttps://hdl.handle.net/10217/235286
dc.languageEnglish
dc.language.isoeng
dc.publisherColorado State University. Libraries
dc.relation.ispartof2020-
dc.rightsCopyright 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.
dc.rights.accessEmbargo Expires: 05/24/2024
dc.subjectelectronic spin
dc.subjectspectroscopy
dc.subjectvanadium
dc.subjectmolecular magnetism
dc.subjectelectron paramagnetic resonance
dc.subjectspin relaxation
dc.titleInvestigations into magnetic relaxation for vanadium complexes
dc.typeText
dcterms.embargo.expires2024-05-24
dcterms.embargo.terms2024-05-24
dcterms.rights.dplaThis Item is protected by copyright and/or related rights (https://rightsstatements.org/vocab/InC/1.0/). 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).
thesis.degree.disciplineChemistry
thesis.degree.grantorColorado State University
thesis.degree.levelDoctoral
thesis.degree.nameDoctor of Philosophy (Ph.D.)

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