56.0 55.5 55.0 54.5 54.0 53.5 53.0 52.5
ppm
0.14
0.50
0.26
0.14 0.14
0.07
0.13
0.22
0.12
0.08
0.13 0.13
0.22
0.12
0 Hz20406080100120140160180
Problem R-98G (CH2Cl2, CHDCl2, CD2Cl2)
100 MHz 13
C NMR spectrum
Source: Sergeyev Magn. Reson. Chem. 1994, 32, 381 (digitized hard copy) g
5.40 5.38 5.36 5.34 5.32 5.30 5.28 5.26 5.24
ppm
1.00
0.42
CH2Cl2, CHDCl2,
300 MHz 1
H NMR spectrum in CD2Cl2
Hz
02468
(D) H H (D)
ClCl
PLT ex-3-1998-gq.plt
5600 5580 5560 5540 5520 5500 5480 5460 5440 5420 5400 5380 5360 5340 5320 5300 5280 5260 5240
Hz
5252.6
5296.0
5323.3
5338.4
5350.4
5365.0
5391.9
5418.1
5430.0
5445.5
5472.6
5500.0
5527.6
5607.1Problem R-98G. The spectrum below is the 100 MHz 13
C NMR spectrum of a mixture of CH2Cl2,
CDHCl2 and CD2Cl2. The spectrum is NOT proton decoupled.
(a) On the spectrum, clearly mark the signals corresponding to each of the isotopomers.
(b) Report the coupling constants and chemical shifts of each of the isotopomers. The Hz scale is referenced to
TMS.
CH2Cl2
CHDCl2
CD2Cl2
15
0 Hz20406080100120140160180
PLT ex-3-1998-gq.plt
5600 5580 5560 5540 5520 5500 5480 5460 5440 5420 5400 5380 5360 5340 5320 5300 5280 5260 5240
Hz
5252.6
5296.0
5323.3
5338.4
5350.4
5365.0
5391.9
5418.1
5430.0
5445.5
5472.6
5500.0
5527.6
5607.1
Problem R-98G. The spectrum below is the 100 MHz 13
C NMR spectrum of a mixture of CH2Cl2,
CDHCl2 and CD2Cl2. The spectrum is NOT proton decoupled.
(a) On the spectrum, clearly mark the signals corresponding to each of the isotopomers.
(b) Report the coupling constants and chemical shifts of each of the isotopomers. The Hz scale is referenced to
TMS.
CH2Cl2
CHDCl2
CD2Cl2
15
CD2Cl2
CHDCl2
CH2Cl2
1
JCH
1
JCD
177.3 Hz
27.2 Hz
54.30ppm
53.92ppm
54.11ppm
 54.30, triplet, 1
JCH = 177.3 Hz
 54.11, doublet of 1:1:1 triplets, 1
JCH = 177.3 Hz, 1
JCD = 27.2 Hz
 53.92, 1:2:3:2:1 pentet, 1
JCD = 27.0 Hz
The isotope shift is 0.19 ppm per deuterium
PLT ex-3-1998-gq.plt