Stable C 2 H 5 X +˙  (X=Cl, Br) radical cations of structure [CH 3 CHXH +˙ ]: Their energetics and dissociation characteristics | Zendy

Holmes John L. | Zendy; Burgers Peter C. | Zendy; Terlouw Johan K. | Zendy; Schwarz Helmut | Zendy; Ciommer Bernhard | Zendy; Halim Herman | Zendy

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Stable C 2 H 5 X +˙ (X=Cl, Br) radical cations of structure [CH 3 CHXH +˙ ]: Their energetics and dissociation characteristics

Author(s) -

Holmes John L.,

Burgers Peter C.,

Terlouw Johan K.,

Schwarz Helmut,

Ciommer Bernhard,

Halim Herman

Publication year - 1983

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.1210180506

Subject(s) - chemistry , standard enthalpy change of formation , dissociation (chemistry) , energetics , radical ion , fragmentation (computing) , carbene , standard enthalpy of formation , enthalpy , ion , gas phase , ionization , ionization energy , bond dissociation energy , methyl radical , medicinal chemistry , radical , organic chemistry , thermodynamics , catalysis , physics , computer science , operating system

A new radical cation having the methyl carbene type structure [CH 3 CHClH] +˙ has been characterized in the gas phase. It is readily generated by the dissociative ionization [CH 3 CHCICO 2 H] +˙ → CO 2 +[CH 3 CHCIH] +˙ . Its enthalpy of formation has been estimated to be 951 kJ mol −1 , close to that of [CH 3 CH 2 CI] +˙ . The principal fragmentation characteristics (loss of HCl and Cl ˙ ) of the ion are discussed. A brief description of the bromo analogue [CH 3 CHBrH] +˙ is also given.

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