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.
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
Assay	95% (HPLC)
MDL Number	MFCD08704220
NACRES	NA.23
Packaging	Packaging 1, 5 g in glass bottle
Quality Level	100
Refractive Index	n20/D 1.843 (lit.)