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Gaseous [C 7 H 8 ] +˙ ions: [Methylene cyclohexadiene] +˙ , a stable species in the gas phase
Author(s) -
Burgers Peter C.,
Terlouw Johan K.,
Levsen Karsten
Publication year - 1982
Publication title -
organic mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.475
H-Index - 121
eISSN - 1096-9888
pISSN - 0030-493X
DOI - 10.1002/oms.1210170610
Subject(s) - methylene , metastability , ion , ionization , decomposition , chemistry , phase (matter) , gas phase , spectral line , standard enthalpy of formation , analytical chemistry (journal) , medicinal chemistry , organic chemistry , physics , astronomy
Using collisional activation and collisional ionization spectra in conjunction with isotopic labelling and energetic data it is demonstrated that the metastable decomposition of ionized n ‐butylbenzene and 2‐phenylethanol leads to [C 7 H 8 ] +˙ ions which have the methylene cyclohexadiene structure. From appearance energies of metastable peaks a value of 960±10 kJ mol −1 was obtained for its heat of formation.

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