Synthesis and Magnetic Properties of Polyimidosulfur- and Bis(benzoxazolyl)methanide-ligated Complexes

by Daniel Lüert
Doctoral thesis
Date of Examination:2022-09-01
Date of issue:2022-09-30
Advisor:Prof. Dr. Dietmar Stalke
Referee:Prof. Dr. Dietmar Stalke
Referee:Prof. Dr. Franc Meyer
Referee:Prof. Dr. Thomas Waitz
Persistent Address: http://dx.doi.org/10.53846/goediss-9466

 

 

Files in this item

Name:PhD_thesis_daniellueert.pdf
Size:18.2Mb
Format:PDF

The following license files are associated with this item:

Abstract

English

The properties of magnetic molecules are promising centerpieces in various fields of research directed toward novel technologies, ranging from quantum computing, high-density data storage systems, and medical imaging applications, to other electron spin techniques. This work aims to generate two new approaches toward novel magnetic materials. The first focus will shine a light on the air-stable and easily tunable bis(benzoxazole-2-yl)methanide (Box) ligand family that was never employed in d- and f-metal chemistry before. Here, the goal is to establish air-stable benchmark systems of single-molecule magnets (SMMs), which allow profound studies of magneto structural correlations and qualify for high-resolution charge density experiments. Second, this thesis evaluates various alkali-metal-based triimidosulfites as versatile precursors for SMMs, demonstrating a linear coordination mode that is beneficial for fine-tuning the local anisotropy in such systems. A coordination mode with two ligands sandwiching one lanthanide ion is envisioned. Starting with the well-known lithium precursor [Li4{NtBu)3S2], the higher homologues with sodium and potassium are feasible and should provide fruitful chemistry.
Keywords: single-molecule magnet; triimidosulfites; lanthanides; dysprosium SMM; Bis(benzoxazolyl)methanes; transition metals; magnetism; cobalt SMM; sulfur-nitrogen
 
Statistik