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

using model chemistry: B3PW91/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/6-31G**
 hartrees
Energy at 0K-268.308482
Energy at 298.15K-268.315597
HF Energy-268.308482
Nuclear repulsion energy178.295932
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 B3PW91/6-31G**
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' 3791 3633 51.29      
2 A' 3154 3023 19.38      
3 A' 3072 2944 18.60      
4 A' 3064 2937 11.92      
5 A' 1863 1786 257.53      
6 A' 1509 1446 12.64      
7 A' 1466 1405 14.80      
8 A' 1434 1374 29.51      
9 A' 1419 1360 44.32      
10 A' 1314 1259 1.87      
11 A' 1186 1136 240.23      
12 A' 1097 1051 43.52      
13 A' 1019 976 3.27      
14 A' 827 793 13.59      
15 A' 615 589 21.04      
16 A' 468 448 21.31      
17 A' 248 238 3.03      
18 A" 3160 3029 18.73      
19 A" 3102 2973 4.18      
20 A" 1503 1440 6.54      
21 A" 1281 1228 0.09      
22 A" 1108 1062 0.40      
23 A" 815 781 22.95      
24 A" 674 646 94.52      
25 A" 520 498 22.10      
26 A" 206 197 0.01      
27 A" 39 38 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 19976.3 cm-1
Scaled (by 0.9584) Zero Point Vibrational Energy (zpe) 19145.3 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 B3PW91/6-31G**
ABC
0.33853 0.12745 0.09585

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.571 0.000
C2 -0.602 -0.812 0.000
C3 0.446 -1.914 0.000
O4 -0.956 1.528 0.000
O5 1.181 0.834 0.000
H6 -1.264 -0.882 0.872
H7 -1.264 -0.882 -0.872
H8 -0.032 -2.898 0.000
H9 1.090 -1.843 -0.881
H10 1.090 -1.843 0.881
H11 -0.483 2.375 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 H6 H7 H8 H9 H10 H11
C11.50842.52551.35271.20972.11402.11403.46922.79182.79181.8671
C21.50841.52102.36662.42641.09701.09702.16222.16802.16803.1890
C32.52551.52103.71712.84522.17952.17951.09351.09291.09294.3888
O41.35272.36663.71712.24692.58112.58114.52124.04084.04080.9700
O51.20972.42642.84522.24693.11153.11153.92422.82032.82032.2677
H62.11401.09702.17952.58113.11151.74372.51823.08782.54233.4606
H72.11401.09702.17952.58113.11151.74372.51822.54233.08783.4606
H83.46922.16221.09354.52123.92422.51822.51821.77341.77345.2919
H92.79182.16801.09294.04082.82033.08782.54231.77341.76114.5873
H102.79182.16801.09294.04082.82032.54233.08781.77341.76114.5873
H111.86713.18904.38880.97002.26773.46063.46065.29194.58734.5873

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 112.946 C1 C2 H6 107.410
C1 C2 H7 107.410 C1 O4 H11 105.824
C2 C1 O4 111.503 C2 C1 O5 126.063
C2 C3 H8 110.518 C2 C3 H9 111.014
C2 C3 H10 111.014 C3 C2 H6 111.691
C3 C2 H7 111.691 O4 C1 O5 122.434
H6 C2 H7 105.267 H8 C3 H9 108.412
H8 C3 H10 108.412 H9 C3 H10 107.356
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.580      
2 C -0.326      
3 C -0.384      
4 O -0.498      
5 O -0.467      
6 H 0.166      
7 H 0.166      
8 H 0.128      
9 H 0.150      
10 H 0.150      
11 H 0.335      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.475 -0.224 0.000 1.491
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.097 -0.524 0.000
y -0.524 -24.664 0.000
z 0.000 0.000 -28.922
Traceless
 xyz
x -7.304 -0.524 0.000
y -0.524 6.845 0.000
z 0.000 0.000 0.458
Polar
3z2-r20.916
x2-y2-9.433
xy-0.524
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.873 -0.090 0.000
y -0.090 6.427 0.000
z 0.000 0.000 4.205


<r2> (average value of r2) Å2
<r2> 123.506
(<r2>)1/2 11.113