ChemicalBook > CAS DataBase List > 2,2',7,7'-Tetrabromo-9,9'-spirobifluorene

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

Product Name: 2,2',7,7'-Tetrabromo-9,9'-spirobifluorene
CAS No.: 128055-74-3
Chemical Name: 2,2',7,7'-Tetrabromo-9,9'-spirobifluorene
Synonyms: SBF-4Br;7,7'CAS:128055-74-3;2,2',7,7'-Tetrabromo;TetrabroMo-9,9'-spirobifl;2,2',7,7'-Tetrabromo-9,9'-spirobiflurene;2,2',7,7'-Tetrabromo-9,9'-spirobifluorene;2,2',7,7'-Tetrabromo-9,9'-spirobifluorene;2,2',7,7'- four-9,9'- screwtwobroMinefluorene;2,2'',7,7''-TETRABROMO-9,9''-SPIRO-BIFLUOROENE
CBNumber: CB7843327
Molecular Formula: C25H12Br4
Formula Weight: 631.98
MOL File: 128055-74-3.mol

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2,2',7,7'-Tetrabromo-9,9'-spirobifluorene Property

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
InChI: InChI=1S/C25H12Br4/c26-13-1-5-17-18-6-2-14(27)10-22(18)25(21(17)9-13)23-11-15(28)3-7-19(23)20-8-4-16(29)12-24(20)25/h1-12H
InChIKey: MASXXNUEJVMYML-UHFFFAOYSA-N
SMILES: C12(C3=C(C=CC(Br)=C3)C3=C1C=C(Br)C=C3)C1=C(C=CC(Br)=C1)C1=C2C=C(Br)C=C1
CAS DataBase Reference: 128055-74-3(CAS DataBase Reference)

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Safety

Hazard Codes: Xn
Risk Statements: 22-36
Safety Statements: 26
WGK Germany: 3
HS Code: 29039990

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H302Harmful if swallowed

H319Causes serious eye irritation

Precautionary statements

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P270Do not eat, drink or smoke when using this product.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P337+P313IF eye irritation persists: Get medical advice/attention.

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: 763888
Product name: 2,2′,7,7′-Tetrabromo-9,9′-spirobifluorene
Purity: 95% (HPLC)
Packaging: 1g
Price: $193
Updated: 2023/06/20

Sigma-Aldrich

Product number: 763888
Product name: 2,2′,7,7′-Tetrabromo-9,9′-spirobifluorene
Purity: 95% (HPLC)
Packaging: 5g
Price: $669
Updated: 2023/01/07

TCI Chemical

Product number: T2597
Product name: 2,2',7,7'-Tetrabromo-9,9'-spirobi[9H-fluorene]
Purity: >98.0%(T)
Packaging: 1g
Price: $61
Updated: 2025/07/31

TCI Chemical

Product number: T2597
Product name: 2,2',7,7'-Tetrabromo-9,9'-spirobi[9H-fluorene]
Purity: >98.0%(T)
Packaging: 5g
Price: $205
Updated: 2025/07/31

TRC

Product number: T291200
Product name: 2,2'',7,7''-Tetrabromo-9,9''-spirobifluorene
Packaging: 5g
Price: $150
Updated: 2021/12/16

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

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

Synthesis

159-66-0

128055-74-3

General procedure for the synthesis of 2,2',7,7'-tetrabromo-9,9'-spirobifluorene from 9,9'-spirobifluorene: 80 mg (0.5 mmol) of anhydrous FeCl3 was added to 30 ml of dichloromethane solution containing 3.16 g (10.0 mmol) of 9,9'-spirobifluorene. A solution of 2.1 ml (41 mmol) of bromine dissolved in 5 ml of dichloromethane was added slowly and dropwise over 10 min. The reaction mixture was refluxed for 6 hours. After completion of the reaction, it was cooled to room temperature and the product precipitated as a precipitate. The precipitate was collected by diafiltration and washed with a small amount of cold dichloromethane. Drying gave 6.0 g (95% yield) of the target product 2,2',7,7'-tetrabromo-9,9'-spirobifluorene as a white solid.

References

[1] Journal of the American Chemical Society, 1990, vol. 112, # 14, p. 5662 - 5663
[2] Journal of Organic Chemistry, 1996, vol. 61, # 20, p. 6906 - 6921
[3] Inorganic Chemistry, 2018, vol. 57, # 11, p. 6210 - 6213
[4] Journal of Materials Chemistry A, 2016, vol. 4, # 22, p. 8750 - 8754
[5] Chemistry - An Asian Journal, 2017, vol. 12, # 2, p. 181 - 189

2,2',7,7'-Tetrabromo-9,9'-spirobifluorene Preparation Products And Raw materials

Raw materials

Preparation Products

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View Lastest Price from 2,2',7,7'-Tetrabromo-9,9'-spirobifluorene manufacturers

Shanghai Daken Advanced Materials Co.,Ltd

Product: 2,2,7,7-Tetrabromo-9,9-Spirobifluorene 128055-74-3
Price: US $0.00/KG
Min. Order: 1KG
Purity: 98%
Supply Ability: 150KG /month
Release date: 2021-11-18

Henan Fengda Chemical Co., Ltd

Product: 2,2',7,7'-Tetrabromo-9,9'-spirobifluorene 128055-74-3
Price: US $200.00-1.00/KG
Min. Order: 1KG
Purity: 99%, 99.5% Sublimated
Supply Ability: g-kg-tons, free sample is available
Release date: 2023-12-30

Career Henan Chemical Co

Product: 2,2',7,7'-Tetrabromo-9,9'-spirobifluorene 128055-74-3
Price: US $1.00/KG
Min. Order: 1KG
Purity: 99%
Supply Ability: 1ton
Release date: 2018-08-06

128055-74-3, 2,2',7,7'-Tetrabromo-9,9'-spirobifluoreneRelated Search:

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

2,2'',7,7''-TETRABROMO-9,9''-SPIRO-BIFLUOROENE

2,2'',7,7''-TETRABROMO-9,9''-SPIROBI[9H-FLUORENE]

2,2',7,7'-Tetrabromo-9,9'-spirobiflurene

2,2',7,7'-Tetrabromo

9,9'-Spirobi[9H-fluorene], 2,2',7,7'-tetrabroMo- 2,2',7,7'-TetrabroMo-9,9'-spirobi[9H-fluorene]

2,2',7,7'-TetrabroMo-9,9'-Spirobifluorene,TetrabroMo-9,9'-Spirobifluorene

TetrabroMo-9,9'-spirobifl

2,2',7,7'- four-9,9'- screwtwobroMinefluorene

2,2',7,7'-Tetrabromo-9,9'-spirobifluorene >=98% (HPLC)

9,9'-Spirobi[9H-fluorene],2,2',7,7'-tetrabromo-

2,2',7,7'-Tetrabromo-9,9'-spirobifluorene ISO 9001：2015 REACH

SBF-4Br

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

CAS:128055-74-3

7,7&#39

2,2′,7,7′-Tetrabromo-9,9′-spirobifluorene, CAS 128055-74-3

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

128055-74-3

128055-73-3

C25H12Br4

Fluorene Series

Fluorene Derivatives

OLED