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Merck
CN

763888

2,2′,7,7′-Tetrabromo-9,9′-spirobifluorene

95% (HPLC)

Synonym(s):

2,2′,7,7′-Tetrabromo-9,9′-spirobi[9H-fluorene]

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About This Item

Empirical Formula (Hill Notation):
C25H12Br4
CAS Number:
128055-74-3
Molecular Weight:
631.98
NACRES:
NA.23
PubChem Substance ID:
329767083
UNSPSC Code:
12352103
MDL number:
MFCD08704220

Key Documents

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Product Name

2,2′,7,7′-Tetrabromo-9,9′-spirobifluorene, 95% (HPLC)

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

SMILES string

Brc1ccc2-c3ccc(Br)cc3C4(c2c1)c5cc(Br)ccc5-c6ccc(Br)cc46

InChI key

MASXXNUEJVMYML-UHFFFAOYSA-N

assay

95% (HPLC)

form

solid

mp

395-400 °C

Application

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

Features and Benefits

High glass-transition temperature, excellent thermal stability, soluble in common organic solvents, multi-layer devices can be fabricated by thermal cross-linking of cast films. Easy colour tunability through the introduction of low band gap co-monomers.

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.

pictograms

Exclamation mark
GHS07

signalword

Warning

hcodes

H302,H319

Hazard Classifications

Acute Tox. 4 Oral - Eye Irrit. 2

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

Regulatory Information

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Certificates of Analysis (COA)

Lot/Batch Number
MKBT0631V
MKBP0521V
MKBL4660

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Organic Light Emitting Diode (OLED) materials from spirobifluorene derivatives
R. N. Jana, S. Chakraborty, R. Banerjee
Physics Express, 4(2) (2014)
Amorphous poly-2, 7-fluorene networks
Marsitzky, D., Murray, J., Scott, J. C., & Carter, K. R.
Chemistry of Materials, 13(11), 4285-4289 (2001)
Shugo Sakaguchi et al.
The journal of physical chemistry. B, 122(36), 8614-8623 (2018-08-23)
Nanostructures composed of conjugated polymers or π-conjugated molecules provide sensing platforms with large specific surface areas. One of the feasible approaches to accessing such nanostructured miniaturized sensors with ultrahigh sensitivity is to develop a network of organic nanowires with optical/electronic

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