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

using model chemistry: HSEh1PBE/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HSEh1PBE/3-21G
 hartrees
Energy at 0K-266.640183
Energy at 298.15K-266.647325
HF Energy-266.640183
Nuclear repulsion energy177.555728
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 HSEh1PBE/3-21G
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' 3539 3409 19.22      
2 A' 3168 3052 14.21      
3 A' 3090 2976 18.96      
4 A' 3089 2976 2.02      
5 A' 1816 1750 173.36      
6 A' 1560 1503 12.73      
7 A' 1510 1455 28.53      
8 A' 1470 1416 20.54      
9 A' 1425 1373 50.54      
10 A' 1349 1299 0.58      
11 A' 1157 1114 155.02      
12 A' 1094 1054 135.78      
13 A' 1037 999 4.86      
14 A' 821 791 10.78      
15 A' 614 592 16.84      
16 A' 470 453 29.88      
17 A' 254 245 3.08      
18 A" 3169 3052 14.50      
19 A" 3124 3009 0.66      
20 A" 1559 1502 10.39      
21 A" 1320 1272 0.35      
22 A" 1148 1105 0.03      
23 A" 840 809 24.05      
24 A" 670 646 121.18      
25 A" 534 515 34.61      
26 A" 193 186 0.00      
27 A" 37 36 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 20029.2 cm-1
Scaled (by 0.9633) Zero Point Vibrational Energy (zpe) 19294.1 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 HSEh1PBE/3-21G
ABC
0.33005 0.12877 0.09593

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.557 0.000
C2 -0.612 -0.817 0.000
C3 0.469 -1.893 0.000
O4 -0.981 1.519 0.000
O5 1.192 0.827 0.000
H6 -1.265 -0.895 0.879
H7 -1.265 -0.895 -0.879
H8 0.024 -2.892 0.000
H9 1.108 -1.790 -0.882
H10 1.108 -1.790 0.882
H11 -0.545 2.412 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 H6 H7 H8 H9 H10 H11
C11.50392.49401.37401.22252.11612.11613.44892.74082.74081.9336
C21.50391.52562.36492.44131.09711.09712.17072.16442.16443.2296
C32.49401.52563.70722.81442.18542.18541.09391.09411.09414.4226
O41.37402.36493.70722.28032.58432.58434.52434.01124.01120.9936
O51.22252.44132.81442.28033.12633.12633.89842.76302.76302.3512
H62.11611.09712.18542.58433.12631.75722.53463.08762.53623.4963
H72.11611.09712.18542.58433.12631.75722.53462.53623.08763.4963
H83.44892.17071.09394.52433.89842.53462.53461.77991.77995.3345
H92.74082.16441.09414.01122.76303.08762.53621.77991.76454.6005
H102.74082.16441.09414.01122.76302.53623.08761.77991.76454.6005
H111.93363.22964.42260.99362.35123.49633.49635.33454.60054.6005

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 110.817 C1 C2 H6 107.868
C1 C2 H7 107.868 C1 O4 H11 108.441
C2 C1 O4 110.438 C2 C1 O5 126.814
C2 C3 H8 110.843 C2 C3 H9 110.337
C2 C3 H10 110.337 C3 C2 H6 111.825
C3 C2 H7 111.825 O4 C1 O5 122.748
H6 C2 H7 106.411 H8 C3 H9 108.874
H8 C3 H10 108.874 H9 C3 H10 107.492
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.656      
2 C -0.551      
3 C -0.618      
4 O -0.577      
5 O -0.490      
6 H 0.262      
7 H 0.262      
8 H 0.214      
9 H 0.232      
10 H 0.232      
11 H 0.376      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.296 -0.051 0.000 1.297
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.757 -0.423 0.000
y -0.423 -24.378 0.000
z 0.000 0.000 -29.076
Traceless
 xyz
x -8.030 -0.423 0.000
y -0.423 7.538 0.000
z 0.000 0.000 0.492
Polar
3z2-r20.983
x2-y2-10.378
xy-0.423
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.334 -0.112 0.000
y -0.112 5.900 0.000
z 0.000 0.000 3.612


<r2> (average value of r2) Å2
<r2> 123.539
(<r2>)1/2 11.115