Asymmetric imidazole/pyrene/pyrazine based D-π-A compounds showing visualized acidichromism and near-infrared electrochromism

Two asymmetric pyrene based D-π-A compounds (named as PyMB-1 and PyMB-2) have been synthesized and characterized, and they are found to show reversible protonation-triggered visualized acidichromism and near-infrared electrochromism.98