We employ a bottom-up approach to the understanding and rational design of organic materials from nanoscale/molecular building blocks. We are particularly interested in: i) design of tunable 2D covalent organic frameworks (COFs) using persistent radical molecules, (ii) semiconductor molecular materials for use in organic spintronic/electronic applications (e.g. flexible thin film electronics). The former research primarily employs predictive modelling (aimed at inspiring new experiments), whereas the latter studies involve  direct collaboration with experimental groups.