Fragments neutres
Accueil Remonter Isotopes Fragments + Fragments neutres

 

Liste des principaux fragments neutres perdus obtenus par bombardement électronique à 70eV

15 CH3
16 O, NH2
17 HO
18 H2O
19 F
20 HF
26 CHCH, CHN
27 CH2=CH , HCN
28 CH2=CH2, CO
29 CH3CH2 , CHO
30 NH2CH2 , CH2O, NO, C2H6
31 OCH3, CH2OH, CH2NH2
32 CH3OH, S
33 HS , ( CH3 and H2O)
34 H2S
35 Cl
36 HCl, 2 H2O
37 H2Cl
38 C3H2, C2N, F2
39 C3H3, HC2N
40 CH3CCH
41 CH2=CHCH2
42 CH2=CHCH3, CH2=C=O
43 C3H7, CH3C =O
44 CH2=CHOH, CO2, N2O, CONH2
45 CH3CHOH, CH3CH2O , CO2H, CH3CH2NH2
46 (H2O and CH2=CH2), CH3CH2OH
47 CH3S
48 CH3SH
49 CH2Cl
52 C4H4
53 C4H5
54 CH2=CH-CH-CH2
55 CH2=CHCHCH3
56 CH2=CHCH2CH3
57 C4H9 , C2H5CO
60 C3H7OH
63 CH2CH2Cl
71 C5H11
73 CH3CH2OC(=O)
74 C4H9OH
75 C6H3
76 C6H4
77 C6H5
78 C6H6

Références
HAMMING M. and FOSTER N.. Interpretation of Mass Spectra of Organic Compounds. New York, NY. Academic Press.
McLAFFERTY F. W. Interpretation of Mass Spectra. 3rd Edition, University Scientific Books,  Mill Valley, CA, USA,1980.
SILVERSTEIN, BASLER, MORILL - Identification spectrométrique de composés organiques. Ed. DeBoeck Université, traduction de la 5éme ed., Paris Bruxelles 1998.

Création : 30 Août 1998, dernière mise à jour : 2001.

ATTENTION, ce cours n'évolue plus depuis  2001,                                                                         pages "perso" de Vincent.Dalmeyda(chez)free.fr