chemistry 2211 spring 2021 quiz #4 - university of south
TRANSCRIPT
![Page 1: Chemistry 2211 Spring 2021 Quiz #4 - University of South](https://reader031.vdocument.in/reader031/viewer/2022030201/621d7d740416af49347ad658/html5/thumbnails/1.jpg)
Chemistry 2211 Spring 2021
Quiz #4 2/5/2021
1) How many signals would you expect in the 1H NMR and 13C NMR spectrum of each of the following compounds? (Please answer respectively, 6 pts)
2) Determine the structure of a compound with the molecular formula C5H10O. The 13C NMR spectra and DEPT-135 spectra are showing below. The DEPT-90 spectrum has no signals. (2 pts)
F
CH3 CH3H3C OHOMe
![Page 2: Chemistry 2211 Spring 2021 Quiz #4 - University of South](https://reader031.vdocument.in/reader031/viewer/2022030201/621d7d740416af49347ad658/html5/thumbnails/2.jpg)
Chemistry 2211 Spring 2021
3) Please determine the structure of the compounds with the given information in each following questions. (Giving the correct formula and DOU will gain 1 pt for each question. Correct structure will gain full credits without formular or DOU) (4 x 3 pts) a) Molecular weight 104, only containinng C H O elements. (3 pts)
IR
H NMR
C NMR
![Page 3: Chemistry 2211 Spring 2021 Quiz #4 - University of South](https://reader031.vdocument.in/reader031/viewer/2022030201/621d7d740416af49347ad658/html5/thumbnails/3.jpg)
Chemistry 2211 Spring 2021
b) Molecular formula C8H14O3, IR show peak(s) at around 1700 cm-1, no broad peak at around 3400 cm-1 (3 pts)
H NMR
C NMR
c) Molecular weight 148, only C and H containing. (3 pts) H NMR
C NMR
![Page 4: Chemistry 2211 Spring 2021 Quiz #4 - University of South](https://reader031.vdocument.in/reader031/viewer/2022030201/621d7d740416af49347ad658/html5/thumbnails/4.jpg)
Chemistry 2211 Spring 2021
d) Molecular weight 110, only C and H containing. (3 pts) H NMR
C NMR