title: Benzene-fused BODIPYs: synthesis and the impact of fusion mode.
abstract: BODIPY derivatives with one or two benzene units fused at different positions are prepared using novel synthetic methods. The resulting dye 1 shows deep red fluorescence with a large Stokes shift. Dyes 2 and 3 are reported for the first time and 3 exhibits near infrared absorption. The impact of benzannulation at different positions of BODIPY is discussed, and the geometry and electronic structure are studied by DFT calculations.
authors.affiliation: Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore.
authors.forename: Yong
authors.initials: Y
authors.lastname: Ni
authors.forename: Wangdong
authors.initials: W
authors.lastname: Zeng
authors.forename: Kuo-Wei
authors.initials: KW
authors.lastname: Huang
authors.forename: Jishan
authors.initials: J
authors.lastname: Wu
mesh_terms: D001554:Benzene / Q000737:chemistry*; D001896:Boron Compounds / Q000737:chemistry*; D005456:Fluorescent Dyes / Q000138:chemical synthesis / Q000737:chemistry; D011789:Quantum Theory; D013053:Spectrophotometry
chemical_list: C095489:4,4-difluoro-4-bora-3a,4a-diaza-s-indacene; D001896:Boron Compounds; D005456:Fluorescent Dyes; D001554:Benzene