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

using model chemistry: B2PLYP/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B2PLYP/6-31+G**
 hartrees
Energy at 0K-268.158241
Energy at 298.15K-268.165369
HF Energy-267.896931
Nuclear repulsion energy177.781619
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 B2PLYP/6-31+G**
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' 3778 3599 65.50      
2 A' 3171 3020 21.01      
3 A' 3093 2946 18.50      
4 A' 3089 2942 14.05      
5 A' 1810 1723 285.50      
6 A' 1528 1456 9.79      
7 A' 1490 1419 13.49      
8 A' 1449 1380 2.37      
9 A' 1424 1356 56.59      
10 A' 1308 1245 11.32      
11 A' 1175 1119 225.23      
12 A' 1099 1047 92.90      
13 A' 1026 977 1.26      
14 A' 824 785 7.05      
15 A' 611 582 18.55      
16 A' 468 446 21.91      
17 A' 252 240 2.59      
18 A" 3180 3028 21.01      
19 A" 3127 2978 3.29      
20 A" 1521 1449 7.56      
21 A" 1297 1236 0.00      
22 A" 1125 1071 0.24      
23 A" 820 781 13.59      
24 A" 653 622 101.11      
25 A" 520 495 26.61      
26 A" 215 205 0.00      
27 A" 37 36 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 20043.9 cm-1
Scaled (by 0.9524) Zero Point Vibrational Energy (zpe) 19089.8 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 B2PLYP/6-31+G**
ABC
0.33623 0.12667 0.09523

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.570 0.000
C2 -0.600 -0.815 0.000
C3 0.450 -1.920 0.000
O4 -0.964 1.531 0.000
O5 1.185 0.841 0.000
H6 -1.257 -0.885 0.872
H7 -1.257 -0.885 -0.872
H8 -0.034 -2.898 0.000
H9 1.090 -1.851 -0.880
H10 1.090 -1.851 0.880
H11 -0.506 2.387 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 H6 H7 H8 H9 H10 H11
C11.50912.53031.36101.21602.11082.11083.46792.79742.79741.8864
C21.50911.52442.37362.43501.09411.09412.15822.16912.16913.2034
C32.53031.52443.72922.85732.17882.17881.09131.09041.09044.4120
O41.36102.37363.72922.25732.58432.58434.52494.05364.05360.9713
O51.21602.43502.85732.25733.11493.11493.93292.83412.83412.2916
H62.11081.09412.17882.58433.11491.74402.51163.08452.53863.4681
H72.11081.09412.17882.58433.11491.74402.51162.53863.08453.4681
H83.46792.15821.09134.52493.93292.51162.51161.77061.77065.3059
H92.79742.16911.09044.05362.83413.08452.53861.77061.76024.6138
H102.79742.16911.09044.05362.83412.53863.08451.77061.76024.6138
H111.88643.20344.41200.97132.29163.46813.46815.30594.61384.6138

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 113.049 C1 C2 H6 107.281
C1 C2 H7 107.281 C1 O4 H11 106.766
C2 C1 O4 111.482 C2 C1 O5 126.303
C2 C3 H8 110.099 C2 C3 H9 111.015
C2 C3 H10 111.015 C3 C2 H6 111.568
C3 C2 H7 111.568 O4 C1 O5 122.215
H6 C2 H7 105.688 H8 C3 H9 108.495
H8 C3 H10 108.495 H9 C3 H10 107.629
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.410      
2 C -0.164      
3 C -0.496      
4 O -0.460      
5 O -0.465      
6 H 0.174      
7 H 0.174      
8 H 0.142      
9 H 0.160      
10 H 0.160      
11 H 0.364      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.535 -0.468 0.000 1.605
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.914 -0.486 0.000
y -0.486 -25.934 0.000
z 0.000 0.000 -30.061
Traceless
 xyz
x -7.916 -0.486 0.000
y -0.486 7.053 0.000
z 0.000 0.000 0.863
Polar
3z2-r21.726
x2-y2-9.980
xy-0.486
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.857 -0.130 0.000
y -0.130 7.089 0.000
z 0.000 0.000 4.893


<r2> (average value of r2) Å2
<r2> 125.019
(<r2>)1/2 11.181