Nachweis von radikalischen Zersetzungsprodukten in CCl 4 ‐Entladungen mit der EPR‐Spektroskopie | Zendy

Breitbarth F.W | Zendy; Tiller H.J. | Zendy

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Nachweis von radikalischen Zersetzungsprodukten in CCl 4 ‐Entladungen mit der EPR‐Spektroskopie

Author(s) -

Breitbarth F.W,

Tiller H.J.

Publication year - 1981

Publication title -

beiträge aus der plasmaphysik

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.531

H-Index - 47

eISSN - 1521-3986

pISSN - 0005-8025

DOI - 10.1002/ctpp.19810210606

Subject(s) - radical , electron paramagnetic resonance , chemistry , dissociation (chemistry) , gas phase , spectroscopy , photochemistry , nuclear chemistry , analytical chemistry (journal) , nuclear magnetic resonance , organic chemistry , quantum mechanics , physics

Among the dissociation products of a r.f. discharge in CCl 4 ‐vapour the radicals CCl 3 and Cl 2 ‐ have been identified by EPR‐spectroscopy after condensation at 80 K. The gas‐phase reaction CCl 3 + O 2 → CCl 3 OO has been used to estimate the CCl 3 concentration to be approximately 5 · 10 13 radicals/cm 3 at p CCl 4= 55 Pa. The life‐time of CCl 3 ‐radicals is governed by the rate of desactivation of some exited species (eg. CCl 4 *) via. At a pressure p CCl 4= 55 Pa a half‐life of CCl 3 ‐radicals of τ1/2 = 80 ms has been found.

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