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

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Organic Light-Emitting Diode (OLED) Materials

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

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Catalog Number

ACM128055743-2

Product Name

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

Structure

CAS

128055-74-3

Category

Organic Light-Emitting Diode (OLED) Materials

Synonyms

2,2',7,7'-Tetrabromo-9,9'-spiro-bifluorene

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.

IUPAC Name

2,2',7,7'-Tetrabromo-9,9'-spirobi[fluorene]

Molecular Weight

632

Molecular Formula

C25H12Br4

Canonical SMILES

C1=CC2=C(C=C1Br)C3(C4=C2C=CC(=C4)Br)C5=C(C=CC(=C5)Br)C6=C3C=C(C=C6)Br

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

InChI Key

MASXXNUEJVMYML-UHFFFAOYSA-N

Boiling Point

633.7 ºC/760mmHg (lit.)

Melting Point

395-400 °C

Flash Point

322.5 ºC

Purity

95%+

Density

2.12 g/cm³

Solubility

Insoluble in water

Appearance

White to off-white solid

Application

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

Storage

Sealed in dry,Room Temperature

Complexity

527

Covalently-Bonded Unit Count

Exact Mass

631.76315

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.

Formal Charge

Heavy Atom Count

MDL Number

MFCD08704220

Monoisotopic Mass

627.76725

NSC Number

645359

Packaging

Packaging
1, 5 g in glass bottle

Refractive Index

n20/D 1.843 (lit.)