2,2',7,7'-Tetrabromo-9,9'-spirobifluorene Chemical Properties

Melting point:

395-400°C

Boiling point:

633.7±55.0 °C(Predicted)

Density 

2.12±0.1 g/cm3(Predicted)

storage temp. 

Sealed in dry,Room Temperature

solubility 

Chloroform

form 

Solid

color 

White to Off-White

CAS DataBase Reference

128055-74-3(CAS DataBase Reference)

Safety Information

Hazard Codes 

Xn

Risk Statements 

22-36

Safety Statements 

26

WGK Germany 

3

HS Code 

29039990

2,2',7,7'-Tetrabromo-9,9'-spirobifluorene Usage And Synthesis

Description

2,2′,7,7′-Tetrabromo-9,9′-spirobifluorene is a spirobifluorene (SBF) derivative and is used as a blue-emitting material in electroluminescent devices. The spirobifluorene linkage in the molecule helps in decreasing the crystallization tendency and also increases the colour stability by preventing the formation of aggregates or excimers. They possess high photoluminescence efficiency and good chemical stability.

Chemical Properties

White to light yellow powder

Uses

2,2',7,7'-Tetrabromo-9,9'-spirobifluorene is used in the preparation of OLEDs using amorphous compounds with spiro-bifluorene core.

Uses

2,2'',7,7''-Tetrabromo-9,9''-spirobifluorene is used in the preparation of OLEDs using amorphous compounds with spiro-bifluorene core.

Application

Blue light emitting material in Organic Light Emitting Diodes (OLEDs).

General Description

2,2′,7,7′-Tetrabromo-9,9′-spirobifluorene is a spirobifluorene (SBF) derivative and is used as a blue-emitting material in electroluminescent devices. The spirobifluorene linkage in the molecule helps in decreasing the crystallization tendency and also increases the colour stability by preventing the formation of aggregates or excimers. They possess high photoluminescence efficiency and good chemical stability.

2,2',7,7'-Tetrabromo-9,9'-spirobifluorene(128055-74-3)Related Product Information

• Ethyl bromodifluoroacetate
• Decabromodiphenyl Ethane
• Tetrabromobisphenol A
• Tetrabromophthalic anhydride
• CHLORODIBROMOMETHANE
• 4,4'-Sulphonylbis(2,6-dibromophenol)
• Dibromomethane
• 2,7-Dibromo-9,9'-spiro-bifluorene
• 2,7-Dibromo-9,9-dimethylfluorene
• 2-Bromo-9,9'-spirobi[9H-fluorene]
• 2-Bromo-9,9-diphenylfluorene
• 2-Bromo-9,9-dimethylfluorene
• 2,7-Dibromofluorene
• 2,2'-DIBROMO-9,9'-SPIROBIFLUORENE
• 9,9'-Spirobi[9H-fluorene]
• 2,7-Dibromo-9,9-diphenylfluororene
• 2-Bromofluorene
• 2,2',7,7'-Tetrabromo-9,9'-spirobifluorene