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

using model chemistry: PBEPBE/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 PBEPBE/6-31G**
 hartrees
Energy at 0K-268.091845
Energy at 298.15K-268.098820
HF Energy-268.091845
Nuclear repulsion energy177.025091
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/6-31G**
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' 3633 3583 29.27      
2 A' 3084 3042 18.05      
3 A' 3003 2962 18.82      
4 A' 2989 2948 11.30      
5 A' 1791 1766 220.81      
6 A' 1466 1446 10.50      
7 A' 1420 1401 13.52      
8 A' 1381 1362 7.37      
9 A' 1370 1351 49.37      
10 A' 1271 1254 0.75      
11 A' 1137 1121 205.49      
12 A' 1061 1046 61.77      
13 A' 990 977 3.93      
14 A' 799 788 12.70      
15 A' 592 583 16.91      
16 A' 453 446 21.08      
17 A' 243 239 2.87      
18 A" 3088 3045 17.69      
19 A" 3024 2983 4.37      
20 A" 1459 1439 6.30      
21 A" 1240 1223 0.04      
22 A" 1070 1055 0.10      
23 A" 788 778 20.51      
24 A" 666 657 83.92      
25 A" 503 496 18.56      
26 A" 199 196 0.01      
27 A" 27 26 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 19372.3 cm-1
Scaled (by 0.9863) Zero Point Vibrational Energy (zpe) 19106.9 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/6-31G**
ABC
0.33218 0.12619 0.09467

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.573 0.000
C2 -0.605 -0.818 0.000
C3 0.450 -1.922 0.000
O4 -0.969 1.537 0.000
O5 1.192 0.838 0.000
H6 -1.273 -0.890 0.877
H7 -1.273 -0.890 -0.877
H8 -0.026 -2.914 0.000
H9 1.098 -1.846 -0.886
H10 1.098 -1.846 0.886
H11 -0.475 2.385 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 H6 H7 H8 H9 H10 H11
C11.51632.53451.36731.22152.12832.12833.48682.80052.80051.8735
C21.51631.52712.38252.44391.10511.10512.17482.17842.17843.2051
C32.53451.52713.73842.85782.19172.19171.10091.10051.10054.4047
O41.36732.38253.73842.27192.59822.59824.54974.06294.06290.9815
O51.22152.44392.85782.27193.13593.13593.94512.82842.82842.2744
H62.12831.10512.19172.59823.13591.75462.53413.10632.55733.4828
H72.12831.10512.19172.59823.13591.75462.53412.55733.10633.4828
H83.48682.17481.10094.54973.94512.53412.53411.78611.78615.3178
H92.80052.17841.10054.06292.82843.10632.55731.78611.77204.6005
H102.80052.17841.10054.06292.82842.55733.10631.78611.77204.6005
H111.87353.20514.40470.98152.27443.48283.48285.31784.60054.6005

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 112.770 C1 C2 H6 107.528
C1 C2 H7 107.528 C1 O4 H11 104.610
C2 C1 O4 111.320 C2 C1 O5 126.074
C2 C3 H8 110.652 C2 C3 H9 110.959
C2 C3 H10 110.959 C3 C2 H6 111.745
C3 C2 H7 111.745 O4 C1 O5 122.606
H6 C2 H7 105.104 H8 C3 H9 108.459
H8 C3 H10 108.459 H9 C3 H10 107.234
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.517      
2 C -0.297      
3 C -0.359      
4 O -0.452      
5 O -0.430      
6 H 0.154      
7 H 0.154      
8 H 0.118      
9 H 0.140      
10 H 0.140      
11 H 0.315      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.399 -0.194 0.000 1.412
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.971 -0.493 0.000
y -0.493 -24.920 0.000
z 0.000 0.000 -29.111
Traceless
 xyz
x -6.955 -0.493 0.000
y -0.493 6.621 0.000
z 0.000 0.000 0.334
Polar
3z2-r20.667
x2-y2-9.051
xy-0.493
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.056 -0.118 0.000
y -0.118 6.830 0.000
z 0.000 0.000 4.281


<r2> (average value of r2) Å2
<r2> 124.845
(<r2>)1/2 11.173