Master of Science (MSc)
Faculty of Science
Louise N. Dawe
Coordination-driven self-assemblies are multifunctional molecular systems that provide an efficient method for miniaturization towards functional devices with diverse applications. Herein, the synthesis of novel pyrazole-based ligands suitable for construction of coordination assemblies is reported. These were designed using a strategy that incorporates the presence of both cationic and anionic coordination sites, and a third site for further functionalization. This design strategy has been used because there is still a knowledge gap for controlling the directionality of weak molecular forces in the presence of stronger competing forces. The structural characterization of these ligands, their Hirshfeld surface analysis, and select coordination complexes with first row transition metal cations are discussed. Chapter 2 of this thesis describes the synthesis of a new ferrocene-substituted aminopyrazole molecule that would be suitable for use as a redox-active ligand for coordination to other metal cations with unpaired electrons. Chapter 3 of this thesis describes the synthesis of three new pyrazole-based ligands with small variations to peripheral ligand substituents. Detailed analysis of the crystal packing has been undertaken to account for the observed variations in fluorescent properties. Chapter 4 of this thesis describes efforts to synthesize boron-dipyrromethene (BODIPY) analogues for environmental sensing.
Joekar, Delara, "Coordination Chemistry Using Strategic Design of Ligands for Switchable Properties" (2024). Theses and Dissertations (Comprehensive). 2627.
Available for download on Friday, January 10, 2025