Synthesis and Luminescence Spectral Properties of New 2,7-Dihydroxy-9H-fluoren-9-one Derivatives

A number of new 2,7-dihydroxyfluorenone derivatives containing side-chain oligoethylene glycol fragments with terminal hydroxy, p-tolylsulfonyl, azido, and amino groups were synthesized. When the side chain has a certain length, an interaction between the terminal group and the fluorenone fragment becomes possible, which considerably changes photoluminescence properties of the molecule.