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

using model chemistry: HF/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 HF/6-31G**
 hartrees
Energy at 0K-266.861082
Energy at 298.15K-266.868517
HF Energy-266.861082
Nuclear repulsion energy179.861044
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/6-31G**
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' 4131 3729 109.42      
2 A' 3270 2952 34.19      
3 A' 3206 2894 5.82      
4 A' 3200 2888 35.63      
5 A' 2031 1833 374.69      
6 A' 1629 1471 16.65      
7 A' 1596 1440 14.22      
8 A' 1571 1418 35.51      
9 A' 1545 1395 46.63      
10 A' 1432 1292 6.70      
11 A' 1309 1182 306.24      
12 A' 1183 1068 32.07      
13 A' 1080 974 1.33      
14 A' 888 801 11.04      
15 A' 670 605 34.18      
16 A' 503 454 21.54      
17 A' 269 243 3.25      
18 A" 3283 2963 34.87      
19 A" 3238 2923 6.25      
20 A" 1622 1464 4.65      
21 A" 1396 1260 0.14      
22 A" 1217 1098 2.55      
23 A" 885 799 25.29      
24 A" 702 634 122.00      
25 A" 559 504 30.18      
26 A" 231 208 0.00      
27 A" 65 58 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 21354.8 cm-1
Scaled (by 0.9026) Zero Point Vibrational Energy (zpe) 19274.8 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/6-31G**
ABC
0.34851 0.12822 0.09703

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.575 0.000
C2 -0.599 -0.807 0.000
C3 0.449 -1.912 0.000
O4 -0.938 1.520 0.000
O5 1.160 0.833 0.000
H6 -1.250 -0.876 0.867
H7 -1.250 -0.876 -0.867
H8 -0.034 -2.884 0.000
H9 1.084 -1.846 -0.875
H10 1.084 -1.846 0.875
H11 -0.508 2.365 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 H6 H7 H8 H9 H10 H11
C11.50642.52751.33111.18782.10222.10223.45892.79312.79311.8605
C21.50641.52282.35152.40451.08631.08632.15212.16282.16283.1734
C32.52751.52283.70152.83562.17072.17071.08461.08331.08334.3829
O41.33112.35153.70152.20682.56672.56674.49534.02264.02260.9480
O51.18782.40452.83562.20683.07863.07863.90342.81872.81872.2645
H62.10221.08632.17072.56673.07861.73352.50253.06992.52833.4357
H72.10221.08632.17072.56673.07861.73352.50252.52833.06993.4357
H83.45892.15211.08464.49533.90342.50252.50251.75871.75875.2700
H92.79312.16281.08334.02262.81873.06992.52831.75871.74924.5859
H102.79312.16281.08334.02262.81872.52833.06991.75871.74924.5859
H111.86053.17344.38290.94802.26453.43573.43575.27004.58594.5859

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 113.100 C1 C2 H6 107.238
C1 C2 H7 107.238 C1 O4 H11 108.270
C2 C1 O4 111.790 C2 C1 O5 125.963
C2 C3 H8 110.115 C2 C3 H9 111.052
C2 C3 H10 111.052 C3 C2 H6 111.508
C3 C2 H7 111.508 O4 C1 O5 122.247
H6 C2 H7 105.851 H8 C3 H9 108.428
H8 C3 H10 108.428 H9 C3 H10 107.667
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.749      
2 C -0.316      
3 C -0.330      
4 O -0.602      
5 O -0.560      
6 H 0.156      
7 H 0.156      
8 H 0.116      
9 H 0.135      
10 H 0.135      
11 H 0.360      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.669 -0.335 0.000 1.703
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.209 -0.620 0.000
y -0.620 -25.099 0.000
z 0.000 0.000 -29.176
Traceless
 xyz
x -8.072 -0.620 0.000
y -0.620 7.094 0.000
z 0.000 0.000 0.978
Polar
3z2-r21.957
x2-y2-10.111
xy-0.620
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.514 -0.035 0.000
y -0.035 5.725 0.000
z 0.000 0.000 4.077


<r2> (average value of r2) Å2
<r2> 122.668
(<r2>)1/2 11.076