TpOx-1-Nap

TpOx-1-Nap is a UV excitable fluorescent material with a polycyclic aromatic donor-acceptor structure where the triphenoxazole core acts as a donor and the aromatic group on the two position of the oxazole (1-naphthalene) act as the acceptor group. The push-pull, donor-acceptor, structure facilitates intramolecular charge transfer in the excited state that results in a 235 nm emission Stokes Shift. TpOx-1-Nap is also a photo-conducting Discotic Liquid Crystalline (DLC) material with mesophase transition onset temperature of 96°C. TpOx-1-Nap is designed for 355 nm and 405 nm excitation with emission at 510 nm with quantum yield of 0.48, high thermal, chemical and photostability. TpOx-1-Nap has potential uses in fluorescent dye staining, organic electronic and photonics, and imaging applications.

TpOx-1-Nap can be purchased from Sigma Aldrich website.

Please contact us for more information.

 

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The TpOx-1-Nap properties (In EtOAc Solvent):

  • Abs λmax  = 275 nm
  • ϵ at Abs λmax = 117,000 M-1 cm-1
  • ϵ at Abs λ355 = 16,400 M-1 cm-1
  • ϵ at Abs λ405 = 6,900 M-1 cm-1
  • Emis λmax = 510 nm
  • pSS = 235 nm
  • Quantum Yield (Φ) = 0.48
  • Fluorescence Lifetime = 6 ± 1 ns
  • Band Gap (Optical, Solution state) = 2.94 eV
  • HOMOCV = -5.45 eV
  • LUMO = -2.51 eV
  • Thermal degradation onset = ~380°C

 

Discotic Liquid Crystal Phase transition temperature:

  • Heating Crys – Colh 86°C, Colh – Iso 168°C
  • Cooling Iso – Colh – 161°C, Colh – Crys – 43°C

 

Solubility:

  • THF > 1 mg /mL
  • DCM > 1 mg /mL
  • MeCN < 0.37 mg / mL