Question

Draw the structure of the compound C₆H₄Br₂ that might exhibit the ¹³C-NMR spectrum below. Impurity peaks are omitted from the peak list. The triplet at 77 ppm is CDCl₃.

Draw the structure of the compound CGH_Br2 that might exhibit the 13 C-NMR spectrum below. Impurity peaks are omitted from the peak list. The triplet at 77 ppm is CDC12. Flash Installation and Troubleshooting Used with permission from Aldrich Chemical Co., Inc. Solvent CDC13 Shift 134.1 131.0 130.1 122.9 Chemical shift: ~5 Y ZOOM 225.0 225.0 187.2 187.2 149.5 149.5 111.7 73.9 Chemical shift, & (ppm) 111.7 13.9 36.2 36.2 -1.6 -1.6

Answer 1

Answen From the Be NMR spectrum the number of signal = 4 Now, the moleculen formula of the - compound is CG Hq Bn 2. Thor The following structure possible with the above more enter formula CT DO ta CA C3 No of Bransons No. of dr types of Carbon s = 3 No. of types T of carbu'= 4 C3 Bro Ca I No. of types of Carbos = 3 so the which correct match structure of the compound. the 13C NMR spectra is Bro 16,7 134.1 ppm. ez → Debat 122.91 C3 + 13011 147 131 ppm Bro 13- dibromobenzene Scanned with CamScanner