Benzene is the simplest aromatic hydrocarbon with a six-membered ring. It is one of the most basic structural units for the construction of π conjugated systems, which are widely used as fluorescent dyes and other luminescent materials for imaging applications and displays because of their enhanced spectroscopic signal. Presented herein is 2,5-bis(methylsulfonyl)-1,4-diaminobenzene as a novel architecture for green fluorophores, established based on an effective push-pull system supported by intramolecular hydrogen bonding. This compound demonstrates high fluorescence emission and photostability and is solid-state emissive, water-soluble, and solvent- and pH-independent with quantum yields of Φ=0.67 and Stokes shift of 140 nm (in water). This architecture is a significant departure from conventional extended π-conjugated systems based on a flat and rigid molecular design and provides a minimum requirement for green fluorophores comprising a single benzene ring.

Benzene is the simplest aromatic hydrocarbon with asix-membered ring. It is one of the most basic structural units for the construction of p conjugated systems,which are widely used as fluorescent dyes and other luminescent materials for imaging applications and displays because of their enhanced spectroscopic signal. Presented herein is 2,5-bis(methylsulfonyl)-1,4-diaminobenzene as an ovel architecture for green fluorophores,e stablished based on an effective push-pull system supported by intramolecular hydrogen bonding.T his compound demonstrates high fluorescence emission and photostability and is solid-state emissive,w ater-soluble,a nd solvent-and pH-independent with quantum yields of F = 0.67 and Stokes shift of 140 nm (in water). This architecture is as ignificant departure from conventional extended p-conjugated systems based on af lat and rigid molecular design and provides am inimum requirement for green fluorophores comprising as ingle benzene ring.