1 / 12

Student exercise 1

Student exercise 1. 2011/10/04 20111067 Hakuba Kitagawa. 1.1 the exact mass. Formula: C 7 H 16 S. Formula: C 13 H 20 O. (j). (k). MW = 12.00000 x 7 + 1.00783 x 16 + 31.9721 x 1 = 132.097 38 = 132.097. MW = 12.00000 x 13 + 1.00783 x 20 + 15.9949 x 1

shing
Télécharger la présentation

Student exercise 1

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Student exercise 1 2011/10/04 20111067 Hakuba Kitagawa

  2. 1.1 the exact mass Formula: C7H16S Formula: C13H20O (j) (k) MW = 12.00000 x 7 + 1.00783 x 16 + 31.9721 x 1 = 132.09738 = 132.097 MW = 12.00000 x 13 + 1.00783 x 20 + 15.9949 x 1 = 192.1515 = 192.152

  3. 1.2 hydrogen deficiency Index = NC – NH/2 – NX/2 + NN/2 + 1 Formula: C7H16S Formula: C13H20O (j) (k) Index = 7 – 16/2 – 0/2 + 0/2 +1 = 0 Index = 13 – 20/2 – 0/2 + 0/2 +1 = 4 (3 double bonds + 1 ring)

  4. 1.3 molecular ion Most possible molecular ions are: : . + : . + or . + (j) (k)

  5. 1.4, 1.5 major fragmentation path way & mechanism Rule8. Hetero atom’s non-bonding electrons provide the cation charge with resonance stabilization (j-1) . - CH3CH2CH2 (j-2) . - CH3CH2

  6. 1.4, 1.5 major fragmentation path way & mechanism Rule3. the more substituted, the more likely is cleavage. (j-3) . - CH3CH2

  7. 1.4, 1.5 major fragmentation path way & mechanism Rule8. Hetero atom’s non-bonding electrons provide the cation charge with resonance stabilization (k-1) . - C6H4(CH2)5CH3

  8. 1.4, 1.5 major fragmentation path way & mechanism Rule8. Hetero atom’s non-bonding electrons provide the cation charge with resonance stabilization (k-2) . - CH2OH

  9. 1.4, 1.5 major fragmentation path way & mechanism Rule8. Hetero atom’s non-bonding electrons provide the cation charge with resonance stabilization (k-2) + + ・ - ・ (CH2)5CH3 + ・ ・ + - ・ C6H4 + +

  10. 1.4, 1.5 major fragmentation path way & mechanism Rule7. b-bond cleavage gives the resonance-stabilized benzyl ion or the tropylium ion (k-3) . - OH

  11. 1.4, 1.5 major fragmentation path way & mechanism Rule7. b-bond cleavage gives the resonance-stabilized benzyl ion or the tropylium ion (k-3) + + + (H- migration) +

  12. 1.4, 1.5 major fragmentation path way & mechanism Rearrangement (k-4) - H2O

More Related