An experimental study of the formation of mixed van der Waals oxygen-isoprene complexes, generated in an expanding supersonic helium-oxygen-isoprene jet at various stagnation pressures and at diverse oxygen and isoprene concentrations, has been performed. The particularities of applying mass spectrometry to studying clustered isoprene streams in a pulsed mode have been discussed. The composition of small clusters generated in a free supersonic jet has been checked for dependencies upon the initial mixture composition and stagnation pressure. The mechanism of nucleation has been identified for different partial concentrations of impurities in the helium stream. The specific features of the dissociative ionization of van der Waals complexes, consisting of pure isoprene and mixed complexes, have been discussed. The conditions needed for the formation of binary oxygen-isoprene van der Waals complexes have been identified.
|Translated title of the contribution||Formation of mixed supramolecular complexes oxygen-isoprene in pulsed supersonic jet|
|Number of pages||15|
|Journal||Вестник Новосибирского государственного университета. Серия: Физика|
|Publication status||Published - 2011|
State classification of scientific and technological information
- 29 PHYSICS