Butyl PBD

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

Butyl PBD
Names
IUPAC name
2-(4-tert-Butylphenyl)-5-(4-phenylphenyl)-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
ECHA InfoCard 100.035.563
EC Number
  • 239-135-7
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).
N verify (what is YN ?)
Infobox references

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. Athanassopoulos, C.; Auerbach, L. B.; Bauer, D.; Bolton, R. D.; Burman, R. L.; Cohen, I.; Caldwell, D. O.; Dieterle, B. D.; Donahue, J. B.; Eisner, A. M.; Fazely, A.; Federspiel, F. J.; M. Gray, G. T. Garvey; Gunasingha, R. M.; Highland, V.; Imlay, R.; Johnston, K.; Kim, H. J.; Louis, W. C.; Lu, A.; Margulies, J.; Mills, G. B.; McIlhany, K.; Metcalf, W.; Reeder, R. A.; Sandberg, V.; Schillaci, M.; Smith, D.; Stancu, I.; Strossman, W.; Tayloe, R.; Van Dalen, G. J.; Vernon, W.; Wang, Y-X.; White, D. H.; Whitehouse, D.; Works, D.; Xiao, Y.; Yellin, S. (1997), "The Liquid Scintillator Neutrino Detector and LAMPF Neutrino Source", Nucl. Instrum. Methods A, 388: 149–72, arXiv:nucl-ex/9605002v1, Bibcode:1997NIMPA.388..149A, doi:10.1016/S0168-9002(96)01155-2.
  2. B8378 2-(4-tert-Butylphenyl)-5-(4-biphenylyl)-1,3,4-oxadiazole ≥99%, Sigma-Aldrich, retrieved 2010-05-22.
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