To ensure that the lowest-energy conformer of Npe:TCNQ is the closest in structure to a D-A subunit in the extended solid, crystals of Npe:TCNQ were synthesized and characterized. Single crystals of the Npe:TCNQ co-crystal were grown by slowly cooling a warm solution of TCNQ and Npe dissolved in MeCN at 330 K. This resulted in precipitation of large dark blue prismatic crystals. Analysis by SCXRD (Figure ) determined that the Npe:TCNQ crystallizes with a 2:3 ratio in the triclinic space group P-1 with cell parameters of a Photoluminescence measurements were attempted for the Npe:TCNQ system, though no detectable fluorescence was observed. We attribute the fluorescence quenching to self-absorption effects. Currently underway are studies of the UV pump, UV-Vis probe ultrafast transient absorption spectroscopy of Npe:TCNQ to reveal time-resolved luminescence data, which we will report in an upcoming paper.