Question
In: Chemistry
How would you use a DEPT spectrum and a {1H}13C spectrum to deduce how many quaternary...
How would you use a DEPT spectrum and a {1H}13C spectrum to deduce how many quaternary carbon atoms you have?
Solutions
Expert Solution
DEPT nothing but Distortionless Enhancement by Polarization Transfer
there isthree types of spectra we can record
DEPT-135
CH3 carbons signal will appear above called +ve
CH2 carbon signal will appear below called -Ve
CH carbon signal will appear above called +ve
Quarternary carbons you will not observe
DEPT-90
CH3 carbons you will not observe
CH2 carbon you will not observe
CH carbon signal will appear above called +ve
Quarternary carbons you will not observe
that means it will be
use ful for finding CH
DEPT-45
CH3 carbons signal will appear above called +ve
CH2 carbon signal will appear above called +ve
CH carbon signal will appear above called +ve
Quarternary carbons you will not observe
IN DEPT we can see the quertanery carbon
that means it will be
use ful for finding CH
queen_honey_blossom answered 2 months agoRelated Solutions
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1.
m/z
Relative intensity
46
0.5
45
19
44
20
30
100
28
32
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Use the data below from an electron impact mass spectrum of a
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m/z
Relative intensity
110
59
108
60
81
8
79
9
29
100
28
29
27
95
26
44
given CH4 as starting material, How to begin with the correct
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http://webbook.nist.gov/chemistry/
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Relative intensity
66
32
64
100
49
26
29
72
28
83
27
60
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