New fluorophores based on trifluorenylamine with very large intrinsic three-photon absorption cross sections.
[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.
Suo
Zhiyong
Z
Physics Department, Montana State University, Bozeman, 59717, USA. suo@physics.montana.edu
Drobizhev
Mikhail
M
Spangler
Charles W
CW
Christensson
Niklas
N
Rebane
Alexander
A
D005449:Fluorenes / Q000138:chemical synthesis* / Q000737:chemistry*; D005456:Fluorescent Dyes / Q000138:chemical synthesis* / Q000737:chemistry*; D015394:Molecular Structure; D017785:Photons; D013053:Spectrophotometry
D005449:Fluorenes; D005456:Fluorescent Dyes; C512802:tri(9,9-diethyl-9H-fluorenyl)amine; C512801:trifluorenylamine