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

using model chemistry: HF/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/6-31+G**
 hartrees
Energy at 0K-266.867971
Energy at 298.15K-266.875393
HF Energy-266.867971
Nuclear repulsion energy179.718613
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 HF/6-31+G**
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' 4125 3730 120.17      
2 A' 3264 2952 33.63      
3 A' 3205 2898 6.27      
4 A' 3196 2890 36.83      
5 A' 2005 1813 422.00      
6 A' 1623 1468 15.49      
7 A' 1590 1438 11.68      
8 A' 1565 1415 27.83      
9 A' 1539 1391 58.60      
10 A' 1420 1284 11.73      
11 A' 1301 1176 305.03      
12 A' 1181 1068 37.56      
13 A' 1079 976 1.32      
14 A' 885 800 9.23      
15 A' 668 604 32.25      
16 A' 502 454 21.66      
17 A' 268 242 3.27      
18 A" 3279 2965 35.57      
19 A" 3236 2926 4.54      
20 A" 1615 1460 6.06      
21 A" 1394 1260 0.10      
22 A" 1214 1098 2.20      
23 A" 883 798 21.73      
24 A" 693 626 117.84      
25 A" 557 504 36.22      
26 A" 230 208 0.01      
27 A" 62 56 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 21288.0 cm-1
Scaled (by 0.9042) Zero Point Vibrational Energy (zpe) 19248.6 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 HF/6-31+G**
ABC
0.34836 0.12784 0.09680

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.575 0.000
C2 -0.597 -0.808 0.000
C3 0.448 -1.916 0.000
O4 -0.938 1.520 0.000
O5 1.160 0.837 0.000
H6 -1.247 -0.875 0.867
H7 -1.247 -0.875 -0.867
H8 -0.041 -2.884 0.000
H9 1.084 -1.854 -0.875
H10 1.084 -1.854 0.875
H11 -0.518 2.370 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 H6 H7 H8 H9 H10 H11
C11.50622.53141.33171.18932.10072.10073.46002.80062.80061.8679
C21.50621.52312.35292.40661.08631.08632.14982.16472.16473.1788
C32.53141.52313.70552.84382.17022.17021.08491.08351.08354.3935
O41.33172.35293.70552.20692.56662.56664.49524.03024.03020.9483
O51.18932.40662.84382.20693.07933.07933.91062.83102.83102.2725
H62.10071.08632.17022.56663.07931.73402.49873.07072.52893.4378
H72.10071.08632.17022.56663.07931.73402.49872.52893.07073.4378
H83.46002.14981.08494.49523.91062.49872.49871.75871.75875.2761
H92.80062.16471.08354.03022.83103.07072.52891.75871.74994.6016
H102.80062.16471.08354.03022.83102.52893.07071.75871.74994.6016
H111.86793.17884.39350.94832.27253.43783.43785.27614.60164.6016

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 113.356 C1 C2 H6 107.138
C1 C2 H7 107.138 C1 O4 H11 108.854
C2 C1 O4 111.867 C2 C1 O5 126.054
C2 C3 H8 109.896 C2 C3 H9 111.167
C2 C3 H10 111.167 C3 C2 H6 111.446
C3 C2 H7 111.446 O4 C1 O5 122.078
H6 C2 H7 105.902 H8 C3 H9 108.402
H8 C3 H10 108.402 H9 C3 H10 107.708
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.545      
2 C -0.125      
3 C -0.450      
4 O -0.558      
5 O -0.557      
6 H 0.164      
7 H 0.164      
8 H 0.133      
9 H 0.147      
10 H 0.147      
11 H 0.389      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.774 -0.490 0.000 1.841
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.942 -0.712 0.000
y -0.712 -25.483 0.000
z 0.000 0.000 -29.653
Traceless
 xyz
x -8.374 -0.712 0.000
y -0.712 7.314 0.000
z 0.000 0.000 1.060
Polar
3z2-r22.120
x2-y2-10.459
xy-0.712
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.161 -0.033 0.000
y -0.033 6.191 0.000
z 0.000 0.000 4.580


<r2> (average value of r2) Å2
<r2> 123.253
(<r2>)1/2 11.102