393841-81-1

Basic information

• Product Name: 2'-broMo-2,7-di-tert-butyl-9,9'-spirobi[fluorene]
• Synonyms: 2'-broMo-2,7-di-tert-butyl-9,9'-spirobi[fluorene]
• CAS NO: 393841-81-1
• Molecular Formula: C₃₃H₃₁Br
• Molecular Weight: 507.50324
• Mol File: 393841-81-1.mol

Chemical Properties

• Melting Point: 227 °C
• Boiling Point: 549.9±29.0 °C(Predicted)
• Appearance: /
• Density: 1.30±0.1 g/cm3(Predicted)
• Storage Temp.: Keep in dark place,Sealed in dry,Room Temperature
• CAS DataBase Reference: 2'-broMo-2,7-di-tert-butyl-9,9'-spirobi[fluorene](CAS DataBase Reference)
• NIST Chemistry Reference: 2'-broMo-2,7-di-tert-butyl-9,9'-spirobi[fluorene](393841-81-1)
• EPA Substance Registry System: 2'-broMo-2,7-di-tert-butyl-9,9'-spirobi[fluorene](393841-81-1)

Safety Data

• Hazardous Substances Data: 393841-81-1(Hazardous Substances Data)

Usage

Uses

Used in Organic Synthesis:
2'-broMo-2,7-di-tert-butyl-9,9'-spirobi[fluorene] is used as a building block in organic synthesis for its distinctive spirobi[fluorene] structure, which can be utilized to create a variety of complex organic molecules.
Used in Materials Science:
In materials science, 2'-broMo-2,7-di-tert-butyl-9,9'-spirobi[fluorene] is employed as a component in the development of new materials, leveraging its structural features to enhance material properties.
Used in Organic Light-Emitting Diodes (OLEDs):
2'-broMo-2,7-di-tert-butyl-9,9'-spirobi[fluorene] is used as a component in OLEDs for its potential contribution to the device's optoelectronic properties, such as emission efficiency and stability.
Used in Optoelectronic Devices:
2'-broMo-2,7-di-tert-butyl-9,9'-spirobi[fluorene] is also utilized in other optoelectronic devices, where its unique structure and functional groups can improve device performance and reliability.
Used in Chemical Functionalization:
The bromine atom in 2'-broMo-2,7-di-tert-butyl-9,9'-spirobi[fluorene] allows for further chemical functionalization, which can be employed to tailor the molecule's properties for specific applications in various industries.

Upstream product

• 409359-65-5 2-bromo-9-(4,4'-di-tert-butyl-biphenyl-2-yl)-9H-fluoren-9-ol 
• 3096-56-8 2-bromofluoren-9-one 
• 70728-89-1 2-bromo-4,4'-di-tert-butylbiphenyl 
• 1316216-76-8 2,7-di-tert-butyl-9,9'-spirobi[9H-fluorene] 

Downstream Products

• 409359-67-7 1,4-dimethyl-2-(2'-ethylhexyloxy)-5-[(2''',7'''-di-tert-butyl)-9'',9'''-spirobifluoren-2''-yl]benzene 
• 862694-69-7 [(2',7'-di-tert-butyl)-9,9'-spirobifluoren-2-yl]phenylamine 
• 409359-68-8 1,4-bis(bromomethyl)-2-(2'-ethylhexyloxy)-5-[(2''',7'''-di-tert-butyl)-9'',9'''-spirobifluoren-2''-yl]benzene 
• 908350-98-1 C₄₄H₃₉N 
• 1365480-04-1 2',7'-di-tert-butyl-2-[9-(3,5-di-tert-butylphenyl)carbazol-3-ylethenyl]spirobifluorene 
• 1365479-78-2 2-(4-diphenylaminostyryl)-2',7'-di-tert-butyl-9,9'-spirobifluorene 
• 1365480-02-9 2-(2-(7-diphenylamino-9,9-diethyl-fluoren-2-yl)vinyl)-2',7'-di-tert-butyl-9,9'-spirobifluorene 
• 1365480-03-0 2-(2-(4-diphenylaminobiphenyl-4'-yl)vinyl)-2',7'-di-tert-butyl-9,9'-spirobifluorene 

Relevant articles and documents

Organic electroluminescent compound and organic electroluminescent device containing same

The invention discloses an organic electroluminescent compound, which is formed by connecting a structural formula (1) and a structural formula (2), wherein * is a connecting site, the structural formula (1) and the structural formula (2) are defined in the specification, Y is O or S, X1-X8 are independently C-R5 or N, Z1-Z4 are independently C-R6 or N, the structural formula (1) can be connected with any non-N connecting site in Z1-Z4 on the A ring of the structural formula (2), and Ar is a substituted or unsubstituted C6-C60 aromatic hydrocarbon group or a substituted or unsubstituted C5-C60 heteroaromatic hydrocarbon group. When the organic electroluminescent compound is applied to the organic electroluminescent device, under the same current density, the luminous efficiency is greatly improved, the color purity is high, the starting voltage of the device is reduced, the power consumption of the device is relatively reduced, and the service life of the device is correspondingly prolonged.

Novel iridium complexes as high-efficiency yellow and red phosphorescent light emitters for organic light-emitting diodes

A series of novel biscyclometallated iridium complexes based on spirobifluorene ligands and acetyl acetonate (acac) ancillary ligands have been synthesized and characterized. Their electrochemical properties were investigated by cyclic voltammetry (CV). HOMO, LUMO, and energy band gaps of all the complexes were calculated by the combination of UV-vis absorption spectra and CV results. TGA and DSC results indicated their excellent thermal stability and amorphous structure. All the iridium complexes were fabricated into organic light-emitting devices with the device configuration of ITO/PEDOT:PSS (50 nm)/PVK (50 wt %):PBD (40 wt %):Ir complex (10 wt %) (45 nm)/TPBI (40 nm)/LiF (0.5 nm)/Ca (20 nm)/Ag (150 nm). Yellow to red light emission has been achieved from the iridium complexes guest materials. Complex C1 (yellow light emission) achieved an efficiency of 36.4 cd/A (10.1%) at 198 cd/m2 and complex C4 (red light emission) reached external quantum efficiency of 4.6%. The slight decrease of external quantum efficiency at high current density revealed that the triplet-triplet (T1-T1) annihilation was effectively suppressed by the new developed complexes.

SOLUTION PROCESSED ORGANOMETALLIC COMPLEXES AND THEIR USE IN ELECTROLUMINESCENT DEVICES

The invention provides phosphorescent organometallic complexes. The complexes of the invention may be prepared as films further comprising a charge carrying host material may be used at an emissive layer in organic light emitting devices. In one embodiment, the complex is a hyper-branched organoiridium complex comprising a 2-phenylpuridine ligand wherein the phenyl ring or the pyridine ring contains 4 non-hydrogen substituents. In another embodiment, the complex is an organoiridium complex comprising a substituted 2-phenyl pyridine ligand, wherein at least one substituent contains a spiro group.

Sterically hindered and highly thermal stable spirobifluorenyl-substituted poly(p-phenylenevinylene) for light-emitting diodes

The sterically hindered and highly thermal stable spirobifluorenyl-substituted poly(p-phenylenevinylene) derivative was synthesized by Gilch polymerization. The defect-free polymer structure was characterized by various spectroscopies. The polymer was com