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Novel Synthetic Techniques for Fe(II) Triazole Spin Crossover Materials

Conway, Georgina (2021) Novel Synthetic Techniques for Fe(II) Triazole Spin Crossover Materials. Master of Science by Research (MScRes) thesis, University of Kent,. (doi:10.22024/UniKent/01.02.89034) (Access to this publication is currently restricted. You may be able to access a copy if URLs are provided) (KAR id:89034)

Language: English

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This thesis is a preliminary investigation into the synthesis of Fe(II) triazole spin crossover compounds (SCO) using novel techniques that are easily scalable for the production of large quantities. These techniques are the direct-contact synthesis of solid reagents mixed under ambient conditions and thin-film synthesis via in situ airbrushing. Three compounds [Fe(atrz)3]SO4 (1), [Fe(Htrz)2(trz)](BF4) (2), and [Fe(atrz)3](BF4)2 (3) were synthesized using these novel techniques and analyzed and characterized with regard to their respective traditional solution-state synthesis. Analysis shows that for 1, the direct-contact and thin-film methods successfully synthesize the same compound as the traditional synthetic method yielding very similar SCO properties. Compound 2 is known to exist in a variety of forms, and it is likely that the direct-contact method yields a multi-phase sample of hydrated forms that potentially dehydrate upon heating. The thin-film method likely synthesizes the same compound as the solution-state with very similar SCO properties. The direct-contact method of compound 3 synthesises the  polymorph. More analysis is required to determine with accuracy the form of the thin-film method and its corresponding SCO properties. The overall results demonstrate that novel direct- contact and thin-film methods are viable techniques for synthesizing SCO materials on a large- scale.

Item Type: Thesis (Master of Science by Research (MScRes))
Thesis advisor: Shepherd, Helena
DOI/Identification number: 10.22024/UniKent/01.02.89034
Uncontrolled keywords: spin crossover materials SCO triazoles synthetic techniques thin film
Divisions: Divisions > Division of Natural Sciences > School of Physical Sciences
SWORD Depositor: System Moodle
Depositing User: System Moodle
Date Deposited: 05 Jul 2021 15:10 UTC
Last Modified: 12 Jul 2021 11:31 UTC
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