Question

Help analyze and interpt the H nmr peaks for sulfanilamide and identify impurities to tell how pure it is.

This report was created by ACD/NMR Processor Academic Edition. For more information go to www.acdlabs.com/nmrproc/ 11/8/2018 9.08:08 AM Acquisition Time (sec) 5 1212 Date Nov 7 2018 Date Stamp Nov 7 2018 entsICHEM 2325 NMR Data Fall 20181 Sulfanilimide Section 412325 Tue 004 1 5 20181107 fidlid 399 91 32768 Original Points Count 32768 48 00 6398 46 Points Count Pulse Sequence Receiver Gain Sweep Width (Hz) OMSO-d6 Spectrum Ofset (Hz) 2399 4724 Tomperature (degree Spectrum Type 2325_Tue_004 15 20181107 esp STANDARD M07 100 0.75 br. s.) 0.50 Mo4(br s) 0.25 0.67 LL02 0.36 2 03 2.03 2.00 7.5 7.0 6.5 6.0 5.5 Chemical Shift (ppm) 2325 Tue 004 1 5 20181107 esp M05(br. s.) MO6(d) MO4br s) Mo20r s) 0.75 MoBbr s) 0.50 Mo1(br. s) 0.14 0.67 2.020.36 2.032.03 2.00 0.49 14 13 12 10 Chemical Shift (ppm)

Answer 1

NH_2(a) rightarrow 2.05 ppm NH_2(d) rightarrow 5.76 ppm CH(c) rightarrow 6.56, 6.54 ppm CH(b) rightarrow 7.43, 7.41 ppm Peaks at 10.23, 7.70, 3.31, 6.85 & 7.19 ppm are impurities.