Document Type

Thesis

Degree Name

Master of Science (MSc)

Department

Chemistry

Faculty/School

Faculty of Science

First Advisor

Louise N. Dawe

Advisor Role

Supervisor

Abstract

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.

Convocation Year

2024

Convocation Season

Spring

Available for download on Friday, January 10, 2025

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