На 'N' Hb. Hc. NO2 Hd Не Br bserved: H' 3 ength: 400MHZ

Principles of Instrumental Analysis
7th Edition
ISBN:9781305577213
Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Chapter19: Nuclear Magnetic Resonance Spectroscopy
Section: Chapter Questions
Problem 19.3QAP
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Help needed with analyzing the H-NMR spectra and answering the table below. Thank you in advance!

The molecule is 4-Bromo-2-nitroaniline

Hb.
На
N.
Hc.
NO2
Hd
Не
Br
NMR nuclei observed: H'
Solvent: CDCI,
NMR field strength: 400MHZ
Transcribed Image Text:Hb. На N. Hc. NO2 Hd Не Br NMR nuclei observed: H' Solvent: CDCI, NMR field strength: 400MHZ
Signal 00(ppm)
Multiplicity
(s,d,t,q,m)
J (Hz) Assignments
А
0.00
S
N/A
В
6.099
S
N/A
6.541
C
d
6.560
D
7.260
S
N/A
7.449
7.453
E
dd
7.468
7.472
8.298
F
d
8.302
Transcribed Image Text:Signal 00(ppm) Multiplicity (s,d,t,q,m) J (Hz) Assignments А 0.00 S N/A В 6.099 S N/A 6.541 C d 6.560 D 7.260 S N/A 7.449 7.453 E dd 7.468 7.472 8.298 F d 8.302
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