Chemistry:Butyl PBD

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Butyl PBD
Butyl PBD.svg
Names
Preferred IUPAC name
2-([1,1′-Biphenyl]-4-yl)-5-(4-tert-butylphenyl)-1,3,4-oxadiazole
Other names
2-(4-tert-Butylphenyl)-5-(4-biphenylyl)-1,3,4-oxadiazole
2-(4-Biphenylyl)-5-(4-tert-butylphenyl)-1,3,4-oxadiazole
Identifiers
3D model (JSmol)
ChemSpider
EC Number
  • 239-135-7
UNII
Properties
C24H22N2O
Molar mass 354.44 g mol−1
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

Butyl PBD or b-PBD (short for butyl-phenyl-bipheny-oxydiazole[1]) is a fluorescent organic compound used in the Liquid Scintillator Neutrino Detector (LSND) at Los Alamos National Laboratory, USA.[1]

The fluorescent emission of b-PBD is at λem = 364 nm for excitation at λex = 305 nm (in ethanol solution).[2] As a scintillant in the LSND, it was used at a concentration of 31 mg/L (87 μmol/L) dissolved in mineral oil.[1]

References

  1. 1.0 1.1 1.2 Athanassopoulos, C.; Auerbach, L. B.; Bauer, D.; Bolton, R. D.; Burman, R. L.; Cohen, I.; Caldwell, D. O.; Dieterle, B. D. et al. (1997), "The Liquid Scintillator Neutrino Detector and LAMPF Neutrino Source", Nucl. Instrum. Methods A 388: 149–72, doi:10.1016/S0168-9002(96)01155-2, Bibcode1997NIMPA.388..149A .
  2. B8378 2-(4-tert-Butylphenyl)-5-(4-biphenylyl)-1,3,4-oxadiazole ≥99%, Sigma-Aldrich, http://www.sigmaaldrich.com/catalog/ProductDetail.do?D7=0&N5=Product%20No.%7CBRAND_KEY&N4=B8378%7CSigma&N25=0&QS=ON&F=SPEC, retrieved 2010-05-22 .