CAS Number 1416881-55-4
4CzTPN-Ph (CAS number 1416881-55-4), a well-known orange emitting material that is widely used in highly efficient TADF-OLED devices.
Comparing to 4CzTPN, the eight phenyl groups at 3,6-positions of carbazole moieties can further increase the electron-donating ability for 4CzTPN-Ph while at the same time greater steric hindrance is introduced. The increased steric hindrance can effectively prevent molecular interactions, i.e. the formation of the excimer.
With the donor-acceptor structure enabling the molecule with good two emission characteristics, 4CzTPN-Ph can also be used for both one and two-photon cellular fluorescence imaging as nanoparticles dispersed in water with good dispersibility, superior resistance against photodegradation and photobleaching and low cytotoxicity.
| CAS number | 1416881-55-4 |
|---|---|
| Full name | 2,3,5,6-tetrakis(3,6-diphenylcarbazol-9-yl)-1,4-dicyanobenzene |
| Synonyms | 2,3,5,6-tetrakis(3,6-diphenyl-9H-carbazol-9-yl)terephthalonitrile |
| Chemical formula | C104H64N6 |
| Molecular weight | 1397.66 g/mol |
| Absorption | λmax 377 nm, 547 nm in toluene |
| Fluorescence | λem 577 nm in toluene |
| HOMO/LUMO | HOMO = 5.90 eV, LUMO = 4.0 eV, T1 = 2.21 eV [1] |
| Classification / Family | Carbazole, TADF materials, Orange dopant materials, Sublimed materials |
* Measurable with an optical spectrometer
| Purity | Unsublimed >98%; Sublimed >99.0% (1H NMR) |
|---|---|
| Melting point | n.a. |
| Appearance | Orange powder/crystals |
* Sublimation is a technique used to obtain ultra pure-grade chemicals, see sublimed materials.
Chemical structure of 4CzTPN-Ph, CAS 1416881-55-4
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