83834-12-2

Upstream product

• 6259-19-4 3,7-dibenzothiophenediamine, 5,5-dioxide 
• 1016-05-3 dibenzothiophene sulfone 

Downstream Products

• 6259-19-4 3,7-dibenzothiophenediamine, 5,5-dioxide 
• 83834-10-0 3,7-dibromodibromodibenzo[b,d]thiophene 
• 1234185-88-6 C₃₀H₂₄O₆S 
• 1234185-73-9 C₃₂H₃₂O₂S 
• 1383449-50-0 3,7-bis(4-(diphenylamino)phenyl)-dibenzothiophene-S,S-dioxide 
• 1619226-10-6 3,7-bis(9,9-dioctyl-9H-fluoren-2-yl)dibenzo[b,d]thiophene-5,5-dioxide 
• 1383601-94-2 3,7-bis(N-(4-bromophenyl)-N-(4-n-butylphenyl)amine)dibenzothiophene-S,S-dioxide 
• 1383601-96-4 3,7-bis(N-phenyl-N-(4-n-butylphenyl)amine)dibenzothiophene-S,S-dioxide 
• 1383601-97-5 3,7-bis(4-(N-phenyl-N-(4-n-butylphenyl)amine)phenyl)dibenzothiophene-S,S-dioxide 
• 159335-98-5 3,7-bis(phenylethynyl)dibenzo[b,d]thiophene 5,5-dioxide 

Relevant academic research and scientific papers

Spiroconjugated Tetraaminospirenes as Donors in Color-Tunable Charge-Transfer Emitters with Donor-Acceptor Structure

Charge-transfer emitters are attractive due to their color tunability and potentially high photoluminescence quantum yields (PLQYs). We herein present tetraaminospirenes as donor moieties, which, in combination with a variety of acceptors, furnished 12 charge-transfer emitters with a range of emission colors and PLQYs of up to 99 %. The spatial separation of their frontier molecular orbitals was obtained through careful structural design, and two DA structures were confirmed by X-ray crystallography. A range of photophysical measurements supported by DFT calculations shed light on the optoelectronic properties of this new family of spiro-NN-donor-acceptor dyes.

Emulsion polymerization derived organic photocatalysts for improved light-driven hydrogen evolution

Here, we present the use of mini-emulsion polymerization to generate small particle analogues of three insoluble conjugated polymer photocatalysts. These materials show hydrogen evolution rates with a sacrificial donor under broadband illumination that are between two and three times higher than the corresponding bulk polymers. The most active emulsion particles displayed a hydrogen evolution rate of 60.6 mmol h-1 g-1 under visible light (λ > 420 nm), which is the highest reported rate for an organic polymer. More importantly, the emulsion particles display far better catalytic lifetimes than previous polymer nanoparticles and they are also effective at high concentrations, allowing external quantum efficiencies as high as 20.4% at 420 nm. A limited degree of aggregation of the polymer particles maximizes the photocatalytic activity, possibly because of light scattering and enhanced light absorption.