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

using model chemistry: PBEPBE/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBEPBE/6-311G**
 hartrees
Energy at 0K-268.162846
Energy at 298.15K-268.169843
HF Energy-268.162846
Nuclear repulsion energy177.319160
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 PBEPBE/6-311G**
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' 3638 3605 34.87      
2 A' 3061 3033 20.58      
3 A' 2988 2960 20.55      
4 A' 2977 2950 11.70      
5 A' 1774 1758 241.70      
6 A' 1454 1440 11.69      
7 A' 1408 1395 16.25      
8 A' 1369 1357 4.23      
9 A' 1359 1346 50.49      
10 A' 1267 1255 0.02      
11 A' 1128 1117 207.48      
12 A' 1054 1045 78.06      
13 A' 989 980 3.32      
14 A' 797 790 12.90      
15 A' 596 591 16.16      
16 A' 455 450 20.31      
17 A' 243 241 2.68      
18 A" 3064 3036 21.63      
19 A" 3006 2979 3.92      
20 A" 1446 1432 8.61      
21 A" 1236 1225 0.03      
22 A" 1069 1059 0.08      
23 A" 788 781 18.84      
24 A" 657 651 80.05      
25 A" 505 500 20.97      
26 A" 196 194 0.01      
27 A" 30 30 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 19275.8 cm-1
Scaled (by 0.9909) Zero Point Vibrational Energy (zpe) 19100.4 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 PBEPBE/6-311G**
ABC
0.33412 0.12625 0.09485

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.573 0.000
C2 -0.597 -0.818 0.000
C3 0.458 -1.921 0.000
O4 -0.976 1.529 0.000
O5 1.184 0.846 0.000
H6 -1.264 -0.891 0.876
H7 -1.264 -0.891 -0.876
H8 -0.018 -2.912 0.000
H9 1.106 -1.847 -0.885
H10 1.106 -1.847 0.885
H11 -0.497 2.382 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 H6 H7 H8 H9 H10 H11
C11.51422.53571.36611.21502.12322.12323.48552.80382.80381.8762
C21.51421.52602.37802.43741.10341.10342.17262.17732.17733.2023
C32.53571.52603.73622.86012.18942.18941.09971.09921.09924.4078
O41.36612.37803.73622.26532.58992.58994.54374.06364.06360.9782
O51.21502.43742.86012.26533.12643.12643.94532.83502.83502.2775
H62.12321.10342.18942.58993.12641.75262.53113.10332.55513.4741
H72.12321.10342.18942.58993.12641.75262.53112.55513.10333.4741
H83.48552.17261.09974.54373.94532.53112.53111.78361.78365.3162
H92.80382.17731.09924.06362.83503.10332.55511.78361.77004.6083
H102.80382.17731.09924.06362.83502.55513.10331.78361.77004.6083
H111.87623.20234.40780.97822.27753.47413.47415.31624.60834.6083

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 113.034 C1 C2 H6 107.370
C1 C2 H7 107.370 C1 O4 H11 105.116
C2 C1 O4 111.197 C2 C1 O5 126.180
C2 C3 H8 110.617 C2 C3 H9 111.021
C2 C3 H10 111.021 C3 C2 H6 111.735
C3 C2 H7 111.735 O4 C1 O5 122.622
H6 C2 H7 105.150 H8 C3 H9 108.410
H8 C3 H10 108.410 H9 C3 H10 107.239
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.305      
2 C -0.317      
3 C -0.330      
4 O -0.297      
5 O -0.303      
6 H 0.157      
7 H 0.157      
8 H 0.121      
9 H 0.134      
10 H 0.134      
11 H 0.239      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.422 -0.222 0.000 1.440
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.695 -0.480 0.000
y -0.480 -25.537 0.000
z 0.000 0.000 -29.575
Traceless
 xyz
x -7.139 -0.480 0.000
y -0.480 6.598 0.000
z 0.000 0.000 0.541
Polar
3z2-r21.082
x2-y2-9.158
xy-0.480
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.435 -0.193 0.000
y -0.193 7.296 0.000
z 0.000 0.000 4.631


<r2> (average value of r2) Å2
<r2> 125.035
(<r2>)1/2 11.182