Environmental Engineering Reference
In-Depth Information
Table 3.9 Corrected thermochemical data of some groups
No.
Group and bond
Structure
Correct value
△
f
(kJ/mol)
1
Sulfur-containing groups in
aromatic hydrocarbon
Ar
-
SO
3
H
−
98
2
Fused nucleus of aromatics
84
−
3
Nitro atom group in aliphatic and
aromatic compounds
R
NO
2
54.4
-
−
Carboxyl atom group in aromatic
acids
Ar
-
COOH
−
54.4
4
Nitro atom group in gem-dinitro
chemicals
R
-
CH(NO
2
)
2
−
41.8
5
Aromatic radical bonding
Ar:Ar
27.2
−
Aromatic radical and olefin radical
Ar:C=C
27.2
−
Aromatic radical and alkyne
radical
Ar:C
≡
C
−
27.2
Nitro atom group in
trinitromethane
R
-
C(NO
2
)
3
−
27.2
Aromatic radical and nitrile group
Ar:CN
27.2
−
Urea atom groups
C=ON=
27.2
−
6
Aromatic and aliphatic radicals
Ar:ALK
−
14.6
Aromatic radical and nitrogen
(ammonia-type)
Ar
N=
14.6
-
−
Quaternary carbon atom
(R)
4
C
14.6
-
−
Amides
R
-
CONH
2
−
14.6
7
Carboxyl atom groups in acid
ALK
COOH
0
-
Nitrates
R
ONO
2
0
-
Nitro atom group in
tetranitromethane
C(NO
2
)
4
0
8
Tert-alcohol
(R)
3
C
-
OH
+14.6
Phenols
Ar
OH
+14.6
-
Nitro amines
R
NHNO
2
+14.6
-
9
Secondary alcohol
R
2
CH
-
OH
+27.2
Ethylene bond in the ring
+27.2
H
2
CCH
2
CH
CH
H
2
C
H
2
C
Aliphatic and aromatic ketones
R
2
C=O
+27.2
Amide with substituted group
+27.2
O
HC
NHN(R )
2
Aromatic radical and chlorine
Ar:Cl
+27.2
Oxyacids
+27.2
R
1
COOH
C
