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

2,2',7,7'-Tetrabromo-9,9'-spirobifluorene ??? ???
?? ??:
128055-74-3
???:
2,2',7,7'-Tetrabromo-9,9'-spirobifluorene
???(??):
SBF-4Br;CAS:128055-74-3;2,2',7,7'-Tetrabromo;TetrabroMo-9,9'-spirobifl;2,2',7,7'-Tetrabromo-9,9'-spirobiflurene;2,2',7,7'-Tetrabromo-9,9'-spirobifluorene;2,2',7,7'- four-9,9'- screwtwobroMinefluorene;2,2'',7,7''-TETRABROMO-9,9''-SPIRO-BIFLUOROENE;9,9'-Spirobi[9H-fluorene],2,2',7,7'-tetrabromo-;2,2'',7,7''-TETRABROMO-9,9''-SPIROBI[9H-FLUORENE]
CBNumber:
CB7843327
???:
C25H12Br4
??? ??:
631.98
MOL ??:
128055-74-3.mol

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

???
395-400°C
?? ?
633.7±55.0 °C(Predicted)
??
2.12±0.1 g/cm3(Predicted)
?? ??
Sealed in dry,Room Temperature
???
?????? ???
??? ??
??
??? ??
??? ??
??
???? ?????
CAS ??????
128055-74-3(CAS DataBase Reference)
??
  • ?? ? ?? ??
  • ?? ? ???? ?? (GHS)
??? ?? Xn
?? ???? ?? 22-36
????? 26
WGK ?? 3
HS ?? 29039990
????(GHS): GHS hazard pictograms
?? ?: Warning
??·?? ??:
?? ??·?? ?? ?? ?? ?? ?? ? ?? ?? P- ??
H302 ??? ??? ?? ?? ?? - ?? ?? 4 ?? GHS hazard pictograms P264, P270, P301+P312, P330, P501
H319 ?? ?? ??? ??? ?? ? ?? ?? ??? ?? ?? 2A ?? GHS hazard pictograms P264, P280, P305+P351+P338,P337+P313P
??????:
P264 ?? ??? ?? ??? ????.
P264 ?? ??? ?? ??? ????.
P270 ? ??? ??? ??? ???, ???? ???? ???.
P280 ????/???/???/?????? ?????.
P301+P312 ??? ???? ??? ????(??)? ??? ????.
P305+P351+P338 ?? ??? ? ?? ?? ???? ????. ???? ?????? ?????. ?? ????.
P337+P313 ?? ?? ??? ???? ???? ??· ??? ????.
NFPA 704
0
2 0

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

??

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.

??? ??

White to light yellow powder

??

2,2',7,7'-Tetrabromo-9,9'-spirobifluorene is used in the preparation of OLEDs using amorphous compounds with spiro-bifluorene core.

?? ??

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

?? ??

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.

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

???

2,7-Dibromo-9,9'-spiro-bifluorene 9,9'-Spirobi[9H-fluorene]

?? ??

Spiro-MeOTAD

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

???( 254)?? ??
??? ?? ??? ?? ?? ? ??
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2,2',7,7'-Tetrabromo-9,9'-spirobifluorene ?? ??:

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