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

using model chemistry: PBE1PBE/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 PBE1PBE/6-31G**
 hartrees
Energy at 0K-268.095618
Energy at 298.15K-268.102784
HF Energy-268.095618
Nuclear repulsion energy178.616940
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 PBE1PBE/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' 3751 3576 53.65      
2 A' 3172 3023 18.38      
3 A' 3091 2946 17.33      
4 A' 3082 2937 11.29      
5 A' 1887 1798 265.06      
6 A' 1528 1456 14.35      
7 A' 1487 1417 15.60      
8 A' 1454 1386 31.25      
9 A' 1437 1369 45.27      
10 A' 1332 1270 0.91      
11 A' 1206 1149 246.84      
12 A' 1113 1060 35.55      
13 A' 1030 982 3.54      
14 A' 838 799 13.27      
15 A' 620 591 22.32      
16 A' 471 449 21.63      
17 A' 251 240 2.97      
18 A" 3178 3029 17.26      
19 A" 3119 2973 3.65      
20 A" 1522 1451 7.44      
21 A" 1295 1234 0.11      
22 A" 1121 1068 0.48      
23 A" 822 783 24.33      
24 A" 685 653 98.31      
25 A" 525 501 21.22      
26 A" 211 201 0.01      
27 A" 43 41 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 20134.4 cm-1
Scaled (by 0.9531) Zero Point Vibrational Energy (zpe) 19190.1 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 PBE1PBE/6-31G**
ABC
0.33958 0.12815 0.09634

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.570 0.000
C2 -0.605 -0.809 0.000
C3 0.443 -1.908 0.000
O4 -0.951 1.527 0.000
O5 1.180 0.827 0.000
H6 -1.267 -0.880 0.873
H7 -1.267 -0.880 -0.873
H8 -0.033 -2.893 0.000
H9 1.087 -1.835 -0.881
H10 1.087 -1.835 0.881
H11 -0.473 2.374 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 H6 H7 H8 H9 H10 H11
C11.50592.51721.34921.20762.11372.11373.46322.78202.78201.8650
C21.50591.51852.36202.42141.09751.09752.16112.16572.16573.1860
C32.51721.51853.70732.83272.17772.17771.09421.09361.09364.3789
O41.34922.36203.70732.24242.58002.58004.51484.02874.02870.9723
O51.20762.42142.83272.24243.10833.10833.91312.80562.80562.2633
H62.11371.09752.17772.58003.10831.74522.51733.08652.53993.4613
H72.11371.09752.17772.58003.10831.74522.51732.53993.08653.4613
H83.46322.16111.09424.51483.91312.51732.51731.77501.77505.2855
H92.78202.16571.09364.02872.80563.08652.53991.77501.76224.5740
H102.78202.16571.09364.02872.80562.53993.08651.77501.76224.5740
H111.86503.18604.37890.97232.26333.46133.46135.28554.57404.5740

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 112.671 C1 C2 H6 107.533
C1 C2 H7 107.533 C1 O4 H11 105.762
C2 C1 O4 111.525 C2 C1 O5 125.991
C2 C3 H8 110.561 C2 C3 H9 110.962
C2 C3 H10 110.962 C3 C2 H6 111.691
C3 C2 H7 111.691 O4 C1 O5 122.484
H6 C2 H7 105.327 H8 C3 H9 108.448
H8 C3 H10 108.448 H9 C3 H10 107.347
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.589      
2 C -0.424      
3 C -0.519      
4 O -0.584      
5 O -0.464      
6 H 0.209      
7 H 0.209      
8 H 0.175      
9 H 0.192      
10 H 0.192      
11 H 0.425      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.464 -0.196 0.000 1.477
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.226 -0.426 0.000
y -0.426 -24.739 0.000
z 0.000 0.000 -28.988
Traceless
 xyz
x -7.363 -0.426 0.000
y -0.426 6.868 0.000
z 0.000 0.000 0.494
Polar
3z2-r20.989
x2-y2-9.487
xy-0.426
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.792 -0.079 0.000
y -0.079 6.289 0.000
z 0.000 0.000 4.135


<r2> (average value of r2) Å2
<r2> 123.065
(<r2>)1/2 11.093