title: Tailoring the Solid-State Fluorescence Emission of BODIPY Dyes by meso Substitution.
abstract: 4,4-Difluoro-4-bora-3a,4a-diaza-s-indacene (BODIPY) derivatives bearing varied substituents at the meso position (i.e., CF3 , CH3 , COOR, CHO, CN, Cl, iPr) were synthesized to elucidate the structure-property relationships that give rise to emissive J-aggregates. Several new BODIPY derivatives can be added to the previously reported 1,3,5,7-tetramethyl-8-trifluoromethyl derivative to the list of those forming J-aggregates, in addition to other dyes that are emissive in the solid state without forming J-aggregates.
authors.affiliation: Department of Chemistry, Institute of Nanosensor and Biotechnology, Dankook University, 152 Jukjeon-ro, Suji-gu, Yongin-si, Gyeonggi-do, 448-701 (Korea).
authors.forename: Sungwoo
authors.initials: S
authors.lastname: Kim
authors.affiliation: Department of Chemistry and Nano Science (BK 21 Plus), Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul 120-750 (Korea). bouffard@ewha.ac.kr.
authors.forename: Jean
authors.initials: J
authors.lastname: Bouffard
authors.affiliation: Department of Chemistry, Institute of Nanosensor and Biotechnology, Dankook University, 152 Jukjeon-ro, Suji-gu, Yongin-si, Gyeonggi-do, 448-701 (Korea). youngmi@dankook.ac.kr.
authors.forename: Youngmi
authors.initials: Y
authors.lastname: Kim
keywords: BODIPY; J-aggregation; aggregation-induced enhanced emission; solid-state emission; vapor sensing