CAS 128055-74-3 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.

Synonyms

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

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

Storage

Sealed in dry,Room Temperature

Assay

95% (HPLC)

Complexity

527

Covalently-Bonded Unit Count

Exact Mass

631.76315

Formal Charge

H-Bond Acceptor

H-Bond Donor

Heavy Atom Count

MDL Number

MFCD08704220

Monoisotopic Mass

627.76725

NSC Number

645359

Refractive Index

n20/D 1.843 (lit.)

Rotatable Bond Count

Topological Polar Surface Area

0 Å²

Unit Size

1g; 5g