Synthesis Of Perylene Diimides And Oligothiophenes As Photoactive Monomers In Covalent Organic Frameworks
Covalent organic frameworks (COFs) are an emerging class of materials that have received remarkable attention as gas storage materials as a result of their continuous porosity, high surface area, and thermal resistivity. A review of the literature in the field reveals synthetic methodologies toward improving their gas storage capabilities by maximizing their surface area and pore size; yet their function as light-harvesting materials is relatively minimal. In pursuit of creating organic semiconductors capable of effective electron transfer pathways, COFs may be a possible alternative to achieve this goal with respect to their high degree of structural order. From these perspectives, the design of n-type perylene diimide (PDI) and ptype oligothiophene building blocks was developed. The synthesis of these compounds by transition-metal cross-coupling or lithiation-borylation protocols was explored, and these compounds show promising signs as potential candidates to form a new class of COF materials with photoconductive functions.
dissertation or thesis