Spectrometric
ldentification of
Organic Compounds
,Answers for Student Exercises 1 .1 to 1 .5 1
Atom Type # of Atoms Mass Total Mass
Hydrogen 22 1.00783 22.17226
a
Carbon 10 12.00000 120.00000
Nitrogen 0 14.0031 0.00000
3-ethyloctane Oxygen 0 15.9949 0.00000
C10H22 Sulfur 0 31.9721 0.00000
CnHmXxNyOz IHD Bromine 0 78.9183 0.00000
Index = (n) - (m/2) - (x/2) + (y/2) + 1 = 0 Exact Mass 142.17226
- (C2Hs•) +
[ r Rule 3
..
[ r - (CH 2 =CH2) +
+
Rule 9
b Atom Type # of Atoms Mass Total Mass
Hydrogen 18 1.00783 18.14094
Carbon 10 12.00000 120.00000
Nitrogen 0 14.0031 0.00000
3-butylcyclohex-1-ene Oxygen 0 15.9949 0.00000
C10H18 Sulfur 0 31.9721 0.00000
CnHmXxNyOz IHD Bromine 0 78.9183 0.00000
Index = (n) - (m/2) - (x/2) + (y/2) + 1 = 2 Exact Mass 138.14094
[
[
rr or
- (C4H9 )
•
Rule 5 and 6
.. 0
r .-.
r r
Rule 6
-
- (CH)=CH 7)
[
r.. r - (C3H7•) \_)/ .. • \ /
,Answers for Student Exercises 1 .1 to 1 .5 + 2
+
Rule 3
, Answers for Student Exercises 1 .1 to 1 .5 3
0 Atom Type # of Atoms Mass Total Mass
Hydrogen 18 18.14094
1.00783 156.00000
c Carbon 13 12.00000 0.00000
2-methyl-1-phenylhexan- l-one Nitrogen 0 14.0031 15.99490
C13H1sO Oxygen 1 15.9949 0.00000
CnHmXxNyOz IHD Sulfur 0 31.9721 0.00000
Index = (n) - (m/2) - (x/2) + (y/2) + 1 = 5 Bromine 78.9183
0 Exact Mass 190.13584
o+
Rule 8
+ +
Rule 9 \=I rH
. ---
\=I
H
/
- (CO) +
Rule 8+9 O I
Atom Type # of Atoms Mass Total Mass
d Hydrogen 22 1.00783 22.17226
Carbon 11 12.00000 132.00000
(E)-undec-3-ene
C11H22
Nitrogen 0 14.0031 0.00000
Oxygen 0 15.9949 0.00000
Sulfur 0 31.9721 0.00000
CnHmXxNyOz IHD Bromine 0 78.9183 0.00000
Index = (n) - (m/2) - (x/2) + (y/2) + 1 = 1 Exact Mass 154.17226
+
+
[ (;
.
•
3
..
r -Rule
(CH5 )
•
+
. ..
r
C5H13)
-(
0 +
Rule 5 +
- (C7H14) +
Rule 9