53455-06-4

Basic information

• Product Name: 2-Bromothianthrene
• Synonyms: 2-Bromothianthrene
• CAS NO: 53455-06-4
• Molecular Formula: C₁₂H₇BrS₂
• Molecular Weight: 295.21798
• EINECS: -0
• Product Categories: Intermediates
• Mol File: 53455-06-4.mol
• Article Data: 19

Chemical Properties

• Melting Point: 87-89 °C(Solv: hexane (110-54-3))
• Boiling Point: 390.0±41.0 °C(Predicted)
• Appearance: /
• Density: 1.629±0.06 g/cm3(Predicted)
• CAS DataBase Reference: 2-Bromothianthrene(CAS DataBase Reference)
• NIST Chemistry Reference: 2-Bromothianthrene(53455-06-4)
• EPA Substance Registry System: 2-Bromothianthrene(53455-06-4)

Safety Data

• Hazardous Substances Data: 53455-06-4(Hazardous Substances Data)

Upstream product

• 92-85-3 Thianthrene 
• 139-66-2 diphenyl sulfide 
• 1313390-83-8 dimethylbis(thianthren-1-yl)tin 
• 7726-95-6 bromine 
• 64-19-7 acetic acid 
• 2362-50-7 thianthrene-5-oxide 
• 10035-10-6 hydrogen bromide 

Downstream Products

• 36140-35-9 diphenylboron fluoride 
• 5123-17-1 bromodiphenylborane 

Relevant articles and documents

Purely Organic Crystals Exhibit Bright Thermally Activated Delayed Fluorescence

Thermally activated delayed fluorescent (TADF) materials generally suffer from severe concentration quenching. Efficient non-doped TADF emitters are generally highly twisted aromatic amine-based compounds with isolated chemical moieties. Herein we demonst

A comparative study of carbazole-based thermally activated delayed fluorescence emitters with different steric hindrance

Thermally activated delayed fluorescence (TADF) emitters based on carbazole groups have been reported to realize different efficiencies in devices. Herein, we report two carbazole-based TADF emitters, namely 2-(9H-carbazol-9-yl)thianthrene 5,5,10,10-tetraoxide (CZ-TTR), which has one free-rotation carbazole, and 2,3-di(9H-carbazol-9-yl)thianthrene 5,5,10,10-tetraoxide (DCZ-TTR), which has two mutually restricted carbazole groups, and investigated the influence of steric hindrance on their properties. Both compounds employed the same donor and acceptor segments and connecting mode. However, due to steric hindrance between the two carbazole segments, DCZ-TTR exhibited a smaller singlet-triplet splitting of 0.03 eV compared with that of CZ-TTR (0.10 eV). The device containing DCZ-TTR showed significantly higher efficiencies (20.1% for external quantum efficiency (EQE), 58.5 lm W-1 for power efficiency (PE), and 59.6 cd A-1 for current efficiency (CE)) than those of the CZ-TTR-based device (EQE = 14.4%; PE = 32.9 lm W-1; CE = 32.5 cd A-1). These results clearly proved the necessity of introducing suitable steric hindrance when designing highly efficient TADF emitters based on carbazole groups.

Compound, organic light emitting display panel, and display device

The invention belongs to the technical field of OLED and provides a compound with a D-[sigma]-A chemical structure. The compound has a structure as shown in a chemical formula 1; herein, D is an electron donating group, and m is selected from 1, 2 and 3; wherein A is an electron acceptor group, and n is selected from 1, 2 and 3; d is mainly selected from substituted or unsubstituted C12-C40 carbazole groups, substituted or unsubstituted C13-C40 acridine groups and substituted or unsubstituted C12-C40 diphenylamine groups; wherein A is selected from any one of an aryl boron substituent group, abenzophenone substituent group, an aromatic heterocyclic ketone substituent group and a sulfone substituent group. An electron-donating group and an electron-accepting group are connected to a tetraphenyl silicon mother nucleus to form non-conjugated connection, so that the compound has a D-[sigma]-A molecular structure. Particularly, the introduction of the electron acceptor group A enables thewhole compound molecule to have bipolar property, which is beneficial to the transmission of electron and hole carriers.

Non-aromatic amine small molecule photoelectric material and preparation and application thereof

The invention belongs to the field of photoelectric materials, and discloses a non-aromatic amine small molecule photoelectric material and preparation and application thereof. The non-aromatic aminesmall molecule photovoltaic material has a structural formula as shown in the formula (I). In the formula, R1 is selected from H or -CH3; and R1, R2, R3, and R4 are independently selected from S or O.The non-aromatic amine small molecule photoelectric material of the invention has good hole transport ability, can be applied to a hole transport layer of an organic photoelectric device, and can also be combined with a common electron transport type material to generate an exciplex for luminescence, exhibits high fluorescence quantum yield and exhibits the property of thermally activated delayedfluorescence.