Detection of halogen radicals by millimetre – wave spectroscopy

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CH CH22Br Br radical radical Come Come from CH3Br CH Br natural and anthropogenic source • In the Atmosphere: CH 3Br Br + OH → CH 2Br Br + H O 2 • In Laboratory: CH 3Br Br + Cl → CH 2Br Br + HCl
What What about about CH CH22I I ??? ??? Difficultiies Difficult es with with producing and and detecting No experimental data of rotational rotational constants constant How ow to produce ? CH3Br CH Br + Cl → CH2Br CH Br ...exotherm ... exothermic ic reaction CH3I CH I + Cl → CH2I CH I ...exo ... exo, , endo... endo... Not clear according to papers Fine and hyperfine splitting: splitting: II I (5/2)>IBr (5/2)>IBr(3/2) (3/2) Lines ines of CH 2I I are expected weaker than lines of CH2Br CH Br: = 0,8 < µ (CH2Br ) = 1 : µ( ( CH2I ) = < µ(CH2Br )
Page 1 and 2: Detection of of halogen radicals by
Page 3 and 4: From October 2006 in Lille 1 Univer
Page 5 and 6: 2. 2. Part Part of of my my work wo
Page 7: 2) 2) Spectroscopic interest • CH
Page 11 and 12: How How to to detect detect CH22I?
Page 13 and 14: CH2I CH I in glow el. discharge ?
Page 15 and 16: • Secondary reaction: F + CH 2I I
Page 17 and 18: Wish Wish We have seen few paramag
Page 19 and 20: FCO 2 Probably produced during the
Page 21 and 22: Thanks Thanks to to my my superviso

Detection of halogen radicals by millimetre – wave spectroscopy

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