title: New fluorophores based on trifluorenylamine with very large intrinsic three-photon absorption cross sections.
abstract: [structure: see text] A new fluorophore, tri(9,9-diethyl-9H-fluorenyl)amine, was synthesized by the Buchwald-Hartwig reaction of 2-aminofluorene, and based on this molecule three more fluorophores were prepared that exhibit a very large intrinsic three-photon absorption in the near-IR region, which scales as a third power of the bridge length.
authors.affiliation: Physics Department, Montana State University, Bozeman, 59717, USA. suo@physics.montana.edu
authors.forename: Zhiyong
authors.initials: Z
authors.lastname: Suo
authors.forename: Mikhail
authors.initials: M
authors.lastname: Drobizhev
authors.forename: Charles W
authors.initials: CW
authors.lastname: Spangler
authors.forename: Niklas
authors.initials: N
authors.lastname: Christensson
authors.forename: Alexander
authors.initials: A
authors.lastname: Rebane
mesh_terms: D005449:Fluorenes / Q000138:chemical synthesis* / Q000737:chemistry*; D005456:Fluorescent Dyes / Q000138:chemical synthesis* / Q000737:chemistry*; D015394:Molecular Structure; D017785:Photons; D013053:Spectrophotometry
chemical_list: D005449:Fluorenes; D005456:Fluorescent Dyes; C512802:tri(9,9-diethyl-9H-fluorenyl)amine; C512801:trifluorenylamine