L. Fleury et al., SINGLE-MOLECULE SPECTRA OF AN IMPURITY FOUND IN N-HEXADECANE AND POLYETHYLENE, Molecular crystals and liquid crystals science and technology. Section A, Molecular crystals and liquid crystals, 283, 1996, pp. 81-87
Impurities found in polyethylene and n-hexadecane give rise to intense
and narrow single molecule lines at liquid helium temperatures. The f
luorescence spectra of several impurity molecules in both matrices are
nearly identical, suggesting that a single well-defined compound is i
nvolved. This paper summarizes all the photo-physical properties that
may help identify the chemical structure of these impurities.