Photodissociation-phtoionization, mass spectrometry (PDPIWS) is used to probe the wutral dissociation chemistry of branched alkenes and dienes. Molecules are pbotodkociated with an ultraviolet laser and the resulting neutral fragments are subsequently photoionized with coherent vacuum ultraviolet ra
Photodissociation-photoionization mass spectrometry of n-octene isomers
β Scribed by Van Bramer, S. E.; Johnston, Murray V.
- Book ID
- 126101181
- Publisher
- American Chemical Society
- Year
- 1990
- Tongue
- English
- Weight
- 619 KB
- Volume
- 62
- Category
- Article
- ISSN
- 0003-2700
No coin nor oath required. For personal study only.
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Energetic (6.4 eV) multiphoton ionization (MPI) or photodissociation, effected interchangeably in a Fourier-transform mass spectrometer, can differentiate isomers that yield similar electron ionization spectra. Selectivity is shown for isomers of C,Ha, CrHpN, C,H,F, CsHlo, but not of GHsCls and CIaH
The 193-nm unimolecular photochemistry of n-alkenes from C5 to C14 is studied by photodissociation-photoionization mass spectrometry (PDPI/MS). In PDPI/MS, a UV laser induces neutral unimolecular photodissociation. The resulting neutral fragments and any remaining parent molecules are then softly io