POPOP

POPOP or 1,4-bis(5-phenyloxazol-2-yl) benzene is a scintillator. It is used as a wavelength shifter (also called a "secondary scintillator"), which means that it converts shorter wavelength light to longer wavelength light. Its output spectrum peaks at 410 nm, which is violet.[1] POPOP is used in both solid and liquid organic scintillators.

POPOP
Names
Preferred IUPAC name
2,2′-(1,4-Phenylene)bis(5-phenyl-1,3-oxazole)
Other names
POPOP
Identifiers
3D model (JSmol)
ChEBI
ChemSpider
ECHA InfoCard 100.015.731
EC Number
  • 217-304-6
UNII
  • InChI=1S/C24H16N2O2/c1-3-7-17(8-4-1)21-15-25-23(27-21)19-11-13-20(14-12-19)24-26-16-22(28-24)18-9-5-2-6-10-18/h1-16H N
    Key: MASVCBBIUQRUKL-UHFFFAOYSA-N N
  • InChI=1/C24H16N2O2/c1-3-7-17(8-4-1)21-15-25-23(27-21)19-11-13-20(14-12-19)24-26-16-22(28-24)18-9-5-2-6-10-18/h1-16H
    Key: MASVCBBIUQRUKL-UHFFFAOYAO
  • C1=CC=C(C=C1)C2=CN=C(O2)C3=CC=C(C=C3)C4=NC=C(O4)C5=CC=CC=C5
Properties
C24H16N2O2
Molar mass 364.40 g/mol
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

References
  1. Mechanism of Liquid Scintillation Counting, National Diagnostics, retrieved 24 Sept 2007
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