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All results from a given calculation for CH3CH2COOH (Propanoic Acid)

using model chemistry: BLYP/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at BLYP/6-31G
 hartrees
Energy at 0K-268.228956
Energy at 298.15K-268.235906
HF Energy-268.228956
Nuclear repulsion energy174.557152
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at BLYP/6-31G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3432 3406 7.11      
2 A' 3059 3036 27.39      
3 A' 2987 2964 21.92      
4 A' 2973 2950 14.30      
5 A' 1675 1663 174.14      
6 A' 1508 1497 8.41      
7 A' 1469 1458 21.76      
8 A' 1428 1417 7.41      
9 A' 1366 1356 18.76      
10 A' 1275 1265 8.88      
11 A' 1107 1098 83.94      
12 A' 1036 1028 171.48      
13 A' 994 987 49.21      
14 A' 779 774 3.44      
15 A' 579 575 12.37      
16 A' 445 442 25.67      
17 A' 247 245 2.53      
18 A" 3064 3041 30.10      
19 A" 3001 2978 5.82      
20 A" 1503 1492 6.49      
21 A" 1268 1258 0.03      
22 A" 1107 1098 0.00      
23 A" 808 801 13.70      
24 A" 647 642 128.39      
25 A" 508 504 22.85      
26 A" 200 199 0.01      
27 A" 17 17 0.05      

Unscaled Zero Point Vibrational Energy (zpe) 19240.8 cm-1
Scaled (by 0.9924) Zero Point Vibrational Energy (zpe) 19094.5 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at BLYP/6-31G
ABC
0.32119 0.12300 0.09200

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.567 0.000
C2 -0.597 -0.831 0.000
C3 0.474 -1.942 0.000
O4 -1.009 1.544 0.000
O5 1.210 0.867 0.000
H6 -1.262 -0.913 0.880
H7 -1.262 -0.913 -0.880
H8 -0.005 -2.935 0.000
H9 1.122 -1.867 -0.888
H10 1.122 -1.867 0.888
H11 -0.580 2.443 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 H6 H7 H8 H9 H10 H11
C11.51982.55331.40521.24642.13442.13443.50192.82352.82351.9634
C21.51981.54272.41102.47891.10601.10602.18562.19432.19433.2737
C32.55331.54273.78892.90362.20102.20101.10221.10181.10184.5096
O41.40522.41103.78892.32042.62232.62234.59064.11954.11950.9956
O51.24642.47892.90362.32043.16993.16993.99102.87592.87592.3848
H62.13441.10602.20102.62233.16991.76012.53823.11712.56733.5353
H72.13441.10602.20102.62233.16991.76012.53822.56733.11713.5353
H83.50192.18561.10224.59063.99102.53822.53821.78821.78825.4083
H92.82352.19431.10184.11952.87593.11712.56731.78821.77594.7181
H102.82352.19431.10184.11952.87592.56733.11711.78821.77594.7181
H111.96343.27374.50960.99562.38483.53533.53535.40834.71814.7181

picture of Propanoic Acid state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 112.961 C1 C2 H6 107.703
C1 C2 H7 107.703 C1 O4 H11 108.527
C2 C1 O4 110.967 C2 C1 O5 127.029
C2 C3 H8 110.336 C2 C3 H9 111.048
C2 C3 H10 111.048 C3 C2 H6 111.330
C3 C2 H7 111.330 O4 C1 O5 122.004
H6 C2 H7 105.438 H8 C3 H9 108.453
H8 C3 H10 108.453 H9 C3 H10 107.393
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.424      
2 C -0.261      
3 C -0.355      
4 O -0.506      
5 O -0.378      
6 H 0.159      
7 H 0.159      
8 H 0.118      
9 H 0.140      
10 H 0.140      
11 H 0.359      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.362 -0.354 0.000 1.407
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.438 -0.624 0.000
y -0.624 -24.820 0.000
z 0.000 0.000 -29.463
Traceless
 xyz
x -8.296 -0.624 0.000
y -0.624 7.630 0.000
z 0.000 0.000 0.666
Polar
3z2-r21.332
x2-y2-10.617
xy-0.624
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.069 -0.140 0.000
y -0.140 6.732 0.000
z 0.000 0.000 4.002


<r2> (average value of r2) Å2
<r2> 128.197
(<r2>)1/2 11.322