Andrew C. Benniston and Dorota B. Rewinska
Org. Biomol. Chem., 2006,4, 3886-3888
DOI:
10.1039/B611092D,
Communication
A highly strained non-luminescent dibenzo-acridinium cationic compound is identified that undergoes in acetonitrile light-induced ring closure to create a highly fluorescent, planar, eight-ringed cationic anti-aromatic dye.