title: A laterally π-expanded fluorone dye as an efficient near infrared fluorophore.
abstract: The synthesis and photophysical properties of new dibenzo[b,i]fluorone dye frameworks (BX and FBX) are described. Both BX and FBX display near-infrared sharp absorption and emission upon the addition of base due to the achievement of efficient π-conjugation based on the small bond alternation strategy.
authors.affiliation: Graduate School of Materials Science, Nara Institute of Science and Technology (NAIST), Takayama-cho, Ikoma, Nara 630-0192, Japan. aratani@ms.naist.jp hyamada@ms.naist.jp.
authors.forename: Kyohei
authors.initials: K
authors.lastname: Sezukuri
authors.forename: Mitsuharu
authors.initials: M
authors.lastname: Suzuki
authors.forename: Hironobu
authors.initials: H
authors.lastname: Hayashi
authors.forename: Daiki
authors.initials: D
authors.lastname: Kuzuhara
authors.forename: Naoki
authors.initials: N
authors.lastname: Aratani
authors.forename: Hiroko
authors.initials: H
authors.lastname: Yamada
mesh_terms: D018360:Crystallography, X-Ray; D005456:Fluorescent Dyes / Q000737:chemistry*; D019265:Spectroscopy, Near-Infrared / Q000379:methods*
chemical_list: D005456:Fluorescent Dyes