4CzPN-tBu
CAS Number 1469705-93-8
Dopant Materials, Materials, OLED Materials, Semiconducting Molecules, TADF Materials
A highly efficient photosensitiser and TADF green emitter
Carbazolyl benzonitriles (CBC) derivative known as highly efficient TADF materials.
Specifications | Pricing and Options | MSDS | Literature and Reviews
3,4,5,6-tetrakis(3,6-di-t-butylcarbazol-9-yl)- 1,2-dicyanobenzene (4CzPN-tBu) has a phthalonitrile core with four carbazole moieties sitting next and opposite to the nitrile (CN) groups around the benzene ring. The highly steric tert-butyl groups at 3,6-positions of each carbazole not only provides greater solubility to the molecule but also prevent the quenching of the excitons by the formation of the excimers between molecules. The tert-butyl substituents at 3,6-position can efficiently prevent the formation of the dimers between the carbazoles.
4CzPN-tBu can be used as a heavy-atom-free triplet photosensitizer by harnessing its thermally active triplet energy to realise visible-to-ultraviolet photon up-conversion via triplet-triplet annihilation (TTA). For 4CzPN-R (R = H, Ph or tBu) derivatives, there is a decreasing luminescence intensity in the order of H > tBu > Ph.
General Information
| CAS Number | 1469705-93-8 |
| Full Name | 3,4,5,6-tetrakis(3,6-di-t-butylcarbazol-9-yl)- 1,2-dicyanobenzene |
| Synonyms | 4CzPN-Bu, 3,4,5,6-Tetrakis(3,6-di-tert-butyl-9H-carbazol-9-yl)phthalonitrile, 3,4,5,6-Tetrakis(3,6-di-tert-butyl-9H-carbazol-9-yl)-1,2-benzenedicarbonitrile |
| Chemical Formula | C88H96N6 |
| Molecular Weight | 1237.74 g/mol |
| HOMO/LUMO | HOMO = ~5.8 eV, LUMO = ~3.4 eV (estimated with 4CzPN as reference) |
| Classification / Family | Carbazole derivatives, Phthalonitriles, TADF materials, Green dopant materials, Sublimed materials |
Chemical Structure
Product Details
| Purity | Unsublimed >98.0% (1H NMR), Sublimed >99% (HPLC) |
| Melting Point | N/A |
| Appearance | Orange powder/crystals |
Pricing
| Grade | Order Code | Quantity | Price |
| Unsublimed (>98.0% purity) | M2379B1 | 250 mg | £260 |
| Unsublimed (>98.0% purity) | M2379B1 | 500 mg | £420 |
| Unsublimed (>98.0% purity) | M2379B1 | 1 g | £660 |
| Sublimed (>99.0% purity) | M2379A1 | 250 mg | £370 |
| Sublimed (>99.0% purity) | M2379A1 | 500 mg | £620 |
| Sublimed (>99.0% purity) | M2379A1 | 1 g | £1050 |
MSDS Documentation
4CzPN-tBu MSDS SheetLiterature and Reviews
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Organic thermally activated delayed fluorescence (TADF) compounds used in photocatalysis, M. Bryden et al., Chem. Soc. Rev., 50, 7587-7680 (2021); DOI: 10.1039/d1cs00198a.
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Donor-Acceptor Fluorophores as efficient energy transfer photocatalysts for [2+2] photodimeriz, Q. Wu et al., Org. Biomol. Chem., 18, 3707-3716 (2020); DOI: 10.1039/C9OB02735A.
- Thermally activated delayed fluorescence (TADF) dyes as efficient organic photosensitizers for photocatalytic water reduction, Z. Yu et al., Catal. Commun., 119, 11-15 (2019); DOI: 10.1016/j.catcom.2018.09.018.