复旦大学：《谱学导论》课程PPT教学课件（下）质谱（3/5）

C=0 109 111 C-O s 119cF3CF2, CH3 CH o 3 C-CH3 CH3, CH

120 OCH 3 121 OH, CH, SNH CgH(terpenes) c=0 123 F

s→o 125 127I cI=cH一C 131C3F, 135 (CH3)4Br 138 十I OH

139 CI 149 o+H o l54

Molecular Ion minus 5.3.3 Fragment Lost H CH3 HO. ◆18 H2o 19 F HF 26 CH=CH,C≡N 27 CHa=CH, HCEN 28 CH2-CH2, CO, (HCN+ H) 从分子离子脱去的常见碎片 ◆29 CH3CH2·,·CHO 30 NH2CH2°,CH2O,No 31 OCH3,CH2OH, CH3NH2 32 CH3OH, S 33 Hs·,(cH3andH2O) 34 H?S Cl- 36 HCl, 2H2O 37 H2 Cl (or HCl+ H) 38 C3H2, CaN, F2 C3H3, Hcl 40 CH3C-CH 41 CH2=CHCH2 CHa=CHCH3, CH2-C=O, CH,-CH2, NcO, NCNH? ◆43 C3H,CH3C·,CH2=CH-O·,【CH3·and CH2-CH2, HCNO 44 CH2-CHOH, CO2, N2O, CONH2, NHCH CH3 ◆45 CH3 CHOH, CH3 CH,O', CO2H, CH3CH2NH2 [H2O and CHa=CH2l, CH3 CH2OH,NOz 47 CH3S CH3SH, SO, O3 49 CH? Cl CHF? 52 C4H4, C2N2

5.3.3 从分子离子脱去的常见碎片 

Molecular Ion Minus Fragment Lost 53 Chi c互=CHcH=c 55 CHa=CHCHCHa CHa-CHCH3CH3, CH3 CH=CHCH3, 2CO 58 NCs, (NO+ Co), CH3COCH3 59 CH3 CNH3 C3HgOH 五IacH [Has and CHa=CH=] 63 CHaCHa Cl CsH4, S2, SO? 68 CH2-C-CH=CH2 eEa·,CsH 73 CH3 CHa OC 74 CaLgON 75 C6H3 CsHs, Csh 78 C6H6, CSaH2, CsH4N Br. CsHsN 80 HBr CCIF CF?=CF. 19 CF3-CH 122 6Hs COOH ◆127 128

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