40577-78-4

Usage

Uses

Used in Nanotechnology:
Naphthacene, 5,11-dibromois used as an intermediate in the synthesis of Tribenzo[de,h,kl]naphtho[1,2,3,4-rst]pentaphene (T767600) for its application in nanotechnology. Specifically, it plays a crucial role in the optical sensing of current dynamics in LED devices, enhancing the performance and efficiency of these advanced technologies.

Upstream product

• 92-24-0 Tetracen 
• 1090-13-7 5,12-naphthacenequinone 
• 91-13-4 α,α'-dibromo-o-xylene 
• 71038-78-3 5,11-dichlorotetracene 

Downstream Products

• 193-44-2 tetrathiatetracene 
• 38135-18-1 phenyl-9 indeno(1,2,3 f-g)naphtacene 
• 1400470-75-8 2,8-bis((4-(decyloxy)phenyl)ethynyl)dicyclopenta[de,mn]-tetracene 
• 38135-10-3 diphenyl-5,11 naphtacene 
• 1282600-29-6 5-bromo-11-phenyltetracene 
• 1324012-73-8 5,11-bis(biphenyl-4-yl)tetracene 
• 1324012-72-7 5,11-bis(4-methoxyphenyl)tetracene 
• 1324012-75-0 5,11-bis(4-cyanophenyl)tetracene 
• 1090-13-7 5,12-naphthacenequinone 
• 917228-27-4 5,11-bis-(N-(2,6-diisopropylphenyl)-3,4-dicarboximide-perylen-9-yl)tetracene 
• 92-24-0 Tetracen 

Relevant academic research and scientific papers

Electron Acceptors Based on Cyclopentannulated Tetracenes

New cyclopenta-fused polycyclic aromatic hydrocarbons (CP-PAHs) based on tetracene have been prepared by a palladium-catalyzed cyclopentannulation reaction. The new compounds have low-energy lowest unoccupied molecular orbitals (LUMOs) and relatively small band gaps. The photooxidative stability was intermediate to previously prepared CP-PAHs based on anthracene and pentacene as found in traditional acene stabilities. Scholl cyclodehydrogenation of pendant aryl groups led to materials that quickly formed endoperoxide products.

Intramolecular singlet fission in a face-to-face stacked tetracene trimer

A covalently linked tetracene trimer with a "face-to-face" stacked structure was prepared and its molecular structure is characterized by 1H NMR, MALDI-TOF mass spectroscopy, and elemental analysis. The minimized molecular structure reveals that three tetracene subunits within this trimer adopt a partially "face-to-face" stacked configuration. Its absorption spectrum differs significantly from that of the monomeric and dimeric counterparts in solution due to the strong ground state interactions between the neighboring tetracene subunits. Its fluorescence is almost quenched completely. An ultrafast fluorescence decay component is observed in its fluorescence dynamics, indicating the presence of an ultrafast nonradiative decay channel in the trimer. The nonradiative channel is proved to be intramolecular singlet fission (iSF) by femto-second transient absorption studies. Different from the strongly coupled triplet state observed in the corresponding dimer, weakly coupled triplet states can be formed in this trimer. The triplet quantum yield of trimer 4 can reach up to 126% in solution.

Electron acceptors based on functionalizable cyclopenta[hi]aceanthrylenes and dicyclopenta[de,mn]tetracenes

We report the synthesis and selective functionalization of two externally fused cyclopenta-fused polycyclic aromatic hydrocarbons (CP-PAHs) and demonstrate their electron accepting behavior. 2,7-Bis(trimethylsilyl) cyclopenta[hi]aceanthrylene (1) and 2,8-

Cross-coupling of 5,11-dibromotetracene catalyzed by a triethylammonium ion tagged diphenylphosphine palladium complex in ionic liquids

Suzuki-Miyaura cross-coupling reactions of 5,11-dibromotetracene with arylboronic acids, using a triethylammonium-tagged palladium(II) diphenylphosphine complex as catalyst in a pyrrolidinium-based ionic liquid (IL), allowed the preparation of new 5,11-di

DIBENZORYLENETETRACARBOXIMIDES AS INFRARED ABSORBERS

Dibenzorylenetetracarboximides of the general formula I in which the variables are each defined as follows: R′ are identical or different radicals: hydrogen; optionally substituted aryloxy, arylthio, hetaryloxy or hetarylthio;R are identical or different radicals: hydrogen; optionally substituted C1-C30-alkyl, C3-C8-cycloalkyl, aryl or hetaryl;m, n are each independently 0 or 1.

Yellow-green fluorescence of 5,11- and 5,12-bis(diisopropylsilyl) naphthacenes

5,11- and 5,12-Bis(diisopropylsilyl)naphthacenes (2a and 2b) were synthesized, and their electronic properties were studied. In UV-visible spectra, the lowest energy absorption bands of 2a and 2b are more intense than that of naphthacene. Compounds 2a and 2b show intense yellow-green fluorescence, and the fluorescence quantum yields are almost two times higher than that of naphthacene. Copyright

Dibenzopentarylenebis(dicarboximide)s: Novel near-infrared absorbing dyes

The facile synthesis of the new class of core-extended rylene chromophores, dibenzopentarylenebis(dicarboximide)s, having an intense absorption at 1020-1040 nm, is presented. The Royal Society of Chemistry 2006.