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

using model chemistry: HF/STO-3G

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/STO-3G
 hartrees
Energy at 0K-263.390502
Energy at 298.15K-263.397498
HF Energy-263.390502
Nuclear repulsion energy175.898158
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/STO-3G
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' 4248 3468 8.30      
2 A' 3759 3069 0.35      
3 A' 3609 2947 0.85      
4 A' 3576 2920 1.15      
5 A' 2140 1747 86.76      
6 A' 1832 1496 3.32      
7 A' 1799 1469 1.48      
8 A' 1738 1419 3.13      
9 A' 1687 1377 19.44      
10 A' 1600 1306 4.16      
11 A' 1389 1134 142.27      
12 A' 1278 1043 21.57      
13 A' 1179 962 1.52      
14 A' 936 764 3.58      
15 A' 640 522 24.51      
16 A' 468 382 15.86      
17 A' 246 201 0.78      
18 A" 3761 3071 0.40      
19 A" 3718 3036 0.03      
20 A" 1826 1491 1.95      
21 A" 1502 1227 0.12      
22 A" 1295 1058 0.49      
23 A" 936 764 8.29      
24 A" 619 506 60.68      
25 A" 544 444 37.21      
26 A" 210 171 0.00      
27 A" 50 41 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 23290.7 cm-1
Scaled (by 0.8165) Zero Point Vibrational Energy (zpe) 19016.9 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 HF/STO-3G
ABC
0.33057 0.12328 0.09287

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.575 0.000
C2 -0.604 -0.845 0.000
C3 0.482 -1.935 0.000
O4 -0.996 1.547 0.000
O5 1.180 0.867 0.000
H6 -1.244 -0.940 0.876
H7 -1.244 -0.940 -0.876
H8 0.025 -2.919 0.000
H9 1.112 -1.846 -0.880
H10 1.112 -1.846 0.880
H11 -0.505 2.407 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 H6 H7 H8 H9 H10 H11
C11.54282.55511.39201.21612.14672.14673.49392.80532.80531.9003
C21.54281.53872.42402.47311.08901.08902.16752.17312.17313.2532
C32.55511.53873.78252.88742.17642.17641.08581.08561.08564.4520
O41.39202.42403.78252.28002.64852.64854.58154.09034.09030.9900
O51.21612.47312.88742.28003.14793.14793.95882.85292.85292.2824
H62.14671.08902.17642.64853.14791.75272.50893.07502.52433.5374
H72.14671.08902.17642.64853.14791.75272.50892.52433.07503.5374
H83.49392.16751.08584.58153.95882.50892.50891.76321.76325.3521
H92.80532.17311.08564.09032.85293.07502.52431.76321.75934.6339
H102.80532.17311.08564.09032.85292.52433.07501.76321.75934.6339
H111.90033.25324.45200.99002.28243.53743.53745.35214.63394.6339

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 112.021 C1 C2 H6 108.066
C1 C2 H7 108.066 C1 O4 H11 104.575
C2 C1 O4 111.263 C2 C1 O5 126.979
C2 C3 H8 110.153 C2 C3 H9 110.609
C2 C3 H10 110.609 C3 C2 H6 110.670
C3 C2 H7 110.670 O4 C1 O5 121.758
H6 C2 H7 107.170 H8 C3 H9 108.583
H8 C3 H10 108.583 H9 C3 H10 108.238
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.310      
2 C -0.122      
3 C -0.175      
4 O -0.295      
5 O -0.272      
6 H 0.076      
7 H 0.076      
8 H 0.064      
9 H 0.068      
10 H 0.068      
11 H 0.202      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.708 -0.319 0.000 0.776
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.210 0.243 0.000
y 0.243 -24.667 0.000
z 0.000 0.000 -26.888
Traceless
 xyz
x -6.432 0.243 0.000
y 0.243 4.882 0.000
z 0.000 0.000 1.551
Polar
3z2-r23.101
x2-y2-7.543
xy0.243
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.262 0.075 0.000
y 0.075 3.547 0.000
z 0.000 0.000 1.885


<r2> (average value of r2) Å2
<r2> 125.793
(<r2>)1/2 11.216