Question

draw the structure and label each set of protons A- E. set up a table with the header: peak letter, chemixal shift number of hydrogens and intergration. in the table assign the letter to the chemical shift

Normated 4.65.. 3.85 2.23.. 1.92 3.42 Absolute 37221.23 63572.33 60872.79 49296.83 3.22 1.79.1.12 1.23.. 0.91 6.5 6.0 5.5 7.0 5.0 8.0 3.0 7.5 45 252.0 1.5 10 00 05 4.0 3.5 f1 (ppm)

Answer 1

The structur proposed for the unknown is n-butyl acetate. The 1H NMR analysis is explained as below table with appropriate justification for the peak broadening.

DATE: The str. of unknoren proposed as Too-on-on-on-043 o Ć B E A- ott Name n-butyl acetate MF - C6H12O2, MW-116 UN MAR Analysis table : Sr. No peak chemical Number Multiplaty Integration letter shif(ppm) a hyDoogens 110 4.5-3.9 2H triplet 2.00 12. O 2.2 - 2.0 3H singlet 2.00 3 C&B 1.9.9.1 6H - Pentate 4.0 4. A 4.1-0.7 3H triplet 3.0 The overal peaks have not well ressolved for their rel profon maltsplicity. The integration value to each poutons have not recorded Coreothy due to broad peoks (Not resolved). It may be that the spectrum is recorded at low strength a ang machine. Good Strength machine (300 MHz or more) may resolve the peak broadhing problem? het VIEWER