9,10-Bis(phenylethynyl)anthracene
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| 9,10-Bis(phenylethynyl)anthracene | |
|---|---|
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| Identifiers | |
| CAS number | [] |
| SMILES | c23c(C#Cc5ccccc5)c1ccccc1c (C#Cc4ccccc4) c2cccc3 |
| Properties | |
| Molecular formula | C30H18 |
| Molar mass | 378.473 |
| Appearance | orange solid |
| Melting point |
252-258 °C |
| Hazards | |
| R-phrases | R36/37/38 |
| S-phrases | S26 S36 S37/39 S45 S28A |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox disclaimer and references |
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9,10-Bis(phenylethynyl)anthracene (BPEA) is an aromatic hydrocarbon with the chemical formula is C30H18. It displays strong fluorescence and is used as a chemiluminescent fluorophore with high quantum efficiency. It has the form of orange needle crystals with melting point of 252-258 °C.
It is used in lightsticks as a fluorophor producing glostly green light. It is also used as a dopant for organic semiconductors in OLEDs.
The emission wavelength can be lowered by substituting the anthracene core by halogens or alkyls. 2-ethyl and 1,2-dimethyl substituted BPEAs are also in use.
- 1-chloro-9,10-bis(phenylethynyl)anthracene emits yellow-green light, used in 30-minute high-intensity Cyalume sticks
- 2-chloro-9,10-bis(phenylethynyl)anthracene emits green light, used in 12-hour low-intensity Cyalume sticks
