This document summarizes research on synthesizing and applying naphthalene diimide (NDI) derivatives. It describes methods for synthesizing di-cyano NDI (dcNDI) and di-TMS NDI (dtNDI) and investigating their properties when mixed with electron-rich aromatics. The mixtures showed charge-transfer absorbance extending into the near-infrared range. Crystals formed from the mixtures were also analyzed. The research aims to develop materials for applications like solar energy by tuning the electronic properties through substitution on the NDI core.