Question

i need the peaks explained for both and the chemical structure!

References Mailings Review View Zotero Help contain viruses. Unless you need to edit, it's safer to stay in Protected View. Search Enable Editing 6. (6 points) Determine the chemical structure of the unknown. Integration values in parentheses) are provided on the proton spectrum. For the C-13 spectrum, the sign of the peak for a DEPT-135 spectrum (not shown) are provided. The FTIR spectrum is also provided Problem 6 H-1 Spectrum . All four (+) (+) Problem 6 C-13 Spectrum Oix

Here is the IR spectrum as well

Answer 1

IR spectra :
= two intense peaks at 3400 and 3500 cm-1 indicates presence of -NH2 group.

= peaks above and below 3000 cm-1 indicates sp2C-H and sp3C-H stretching respectively.

= moderate to intense peaks 1450-1620 cm-1 : aromatic ring -C=C- stretching.

= 1200-1300 cm-1 stron peak : C-O stretching.

1H-NMR :

= 3.8-4.0 ppm : complex overlap multiplet peak , 5H.

= 6.8-7.0 ppm : 4H , aromatic protons multiplet peaks.

13C-NMR :   7 non-equivalent protons :

= 56 ppm : 1 sp3C : +ve in 13C-DEPT , it might be -OCH3.'

= 6 'C' in sp2 region : 4 C ( +ve in 13C-DEPT => =C-H ) ;; 2C ( 0 in 13C-DEPT) thus =C- without 'H'.

Most probable structure : molecular formula = C7H9N.

o-Anisidine or 2-methoxyaniline.