2,2',7,7'-Tetrabromo-9,9'-spirobifluorene
Synonym(s):2,2′,7,7′-Tetrabromo-9,9′-spirobi[9H-fluorene]
- CAS NO.：128055-74-3
- Empirical Formula: C25H12Br4
- Molecular Weight: 631.98
- MDL number: MFCD08704220
- EINECS: 672-610-0
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-01-13 11:23:14
What is 2,2',7,7'-Tetrabromo-9,9'-spirobifluorene?
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
The Uses of 2,2',7,7'-Tetrabromo-9,9'-spirobifluorene
2,2',7,7'-Tetrabromo-9,9'-spirobifluorene is used in the preparation of OLEDs using amorphous compounds with spiro-bifluorene core.
The Uses of 2,2',7,7'-Tetrabromo-9,9'-spirobifluorene
2,2'',7,7''-Tetrabromo-9,9''-spirobifluorene is used in the preparation of OLEDs using amorphous compounds with spiro-bifluorene core.
What are the applications of 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.
Properties of 2,2',7,7'-Tetrabromo-9,9'-spirobifluorene
| 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 for 2,2',7,7'-Tetrabromo-9,9'-spirobifluorene
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H302:Acute toxicity,oral H319:Serious eye damage/eye irritation |
| Precautionary Statement Codes |
P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P270:Do not eat, drink or smoke when using this product. P280:Wear protective gloves/protective clothing/eye protection/face protection. P301+P312:IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P337+P313:IF eye irritation persists: Get medical advice/attention. |
Computed Descriptors for 2,2',7,7'-Tetrabromo-9,9'-spirobifluorene
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