title: Fluorescent azobenzenes and aromatic aldimines featuring an N-B interaction.
abstract: Azobenzenes are constituents of the commonly and widely used azo dyes. Many dyes, except for the azo dyes, have been utilized for fluorescent materials. However, there are only a few fluorescent azobenzene derivatives and their fluorescence efficiencies are quite low. The current perspective provides an account of the fluorescent azobenzenes and aromatic aldimines featuring an N-B interaction. Incorporation of the intramolecular N-B interaction by using the bis(pentafluorophenyl)boryl group makes the azobenzenes and aromatic aldimines fluorescent with a range of colours. Some of them fluoresce with extraordinarily high fluorescence quantum yields. Their synthesis, structures, fluorescence properties, and applications are discussed.
authors.affiliation: Graduate School of Science and Engineering, University of Toyama, 3190 Gofuku, Toyama, Toyama 930-8555, Japan. yoshino@sci.u-toyama.ac.jp.
authors.forename: Junro
authors.initials: J
authors.lastname: Yoshino
authors.forename: Naokazu
authors.initials: N
authors.lastname: Kano
authors.forename: Takayuki
authors.initials: T
authors.lastname: Kawashima