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4CzPN-tBu

CAS Number 1469705-93-8

Dopant Materials, Materials, TADF Materials


Product Code M2379A1-250mg
Price $463 ex. VAT

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A highly efficient photosensitiser and TADF green emitter

Carbazolyl benzonitriles (CBC) derivative known as highly efficient TADF materials.


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

4CzPN-tBu chemical structure, 1469705-93-8
Chemical Structure of 3,4,5,6-tetrakis(3,6-di-t-butylcarbazol-9-yl)- 1,2-dicyanobenzene (4CzPN-tBu), CAS 1469705-93-8

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-tBu4CzPN-tBu MSDS Sheet

Literature and Reviews

  1. 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.
  2. 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.
  3. 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.

To the best of our knowledge the information provided here is accurate. The values provided are typical at the time of manufacture and may vary over time and from batch to batch. Products may have minor cosmetic differences (e.g. to the branding) compared to the photos on our website. All products are for laboratory and research and development use only.

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