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

using model chemistry: mPW1PW91/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/6-311G*
 hartrees
Energy at 0K-268.396046
Energy at 298.15K-268.403219
HF Energy-268.396046
Nuclear repulsion energy178.988902
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 mPW1PW91/6-311G*
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' 3794 3621 38.30      
2 A' 3150 3006 25.44      
3 A' 3076 2936 17.97      
4 A' 3072 2932 18.04      
5 A' 1868 1783 292.97      
6 A' 1522 1453 15.01      
7 A' 1478 1410 18.68      
8 A' 1444 1379 17.25      
9 A' 1429 1363 51.83      
10 A' 1332 1271 1.27      
11 A' 1200 1146 268.90      
12 A' 1108 1057 44.78      
13 A' 1028 981 2.87      
14 A' 835 797 13.43      
15 A' 625 597 21.98      
16 A' 473 452 21.82      
17 A' 251 240 2.76      
18 A" 3155 3012 26.67      
19 A" 3103 2962 4.48      
20 A" 1517 1447 9.48      
21 A" 1299 1240 0.15      
22 A" 1123 1071 0.48      
23 A" 823 785 26.15      
24 A" 690 659 106.15      
25 A" 529 505 23.23      
26 A" 212 202 0.00      
27 A" 39 37 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 20087.5 cm-1
Scaled (by 0.9544) Zero Point Vibrational Energy (zpe) 19171.5 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 mPW1PW91/6-311G*
ABC
0.34192 0.12822 0.09653

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.570 0.000
C2 -0.596 -0.810 0.000
C3 0.452 -1.907 0.000
O4 -0.957 1.518 0.000
O5 1.171 0.837 0.000
H6 -1.257 -0.883 0.869
H7 -1.257 -0.883 -0.869
H8 -0.021 -2.890 0.000
H9 1.095 -1.838 -0.878
H10 1.095 -1.838 0.878
H11 -0.505 2.371 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 H6 H7 H8 H9 H10 H11
C11.50342.51811.34701.20092.10842.10843.46062.78742.78741.8705
C21.50341.51662.35652.41551.09441.09442.15792.16452.16453.1828
C32.51811.51663.70382.83712.17372.17371.09121.09051.09054.3840
O41.34702.35653.70382.23382.57092.57094.50704.03074.03070.9650
O51.20092.41552.83712.23383.09953.09953.91372.81682.81682.2718
H62.10841.09442.17372.57093.09951.73762.51273.08162.53893.4507
H72.10841.09442.17372.57093.09951.73762.51272.53893.08163.4507
H83.46062.15791.09124.50703.91372.51272.51271.76761.76765.2838
H92.78742.16451.09054.03072.81683.08162.53891.76761.75574.5879
H102.78742.16451.09054.03072.81682.53893.08161.76761.75574.5879
H111.87053.18284.38400.96502.27183.45073.45075.28384.58794.5879

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 112.986 C1 C2 H6 107.461
C1 C2 H7 107.461 C1 O4 H11 106.841
C2 C1 O4 111.412 C2 C1 O5 126.191
C2 C3 H8 110.624 C2 C3 H9 111.197
C2 C3 H10 111.197 C3 C2 H6 111.699
C3 C2 H7 111.699 O4 C1 O5 122.397
H6 C2 H7 105.096 H8 C3 H9 108.229
H8 C3 H10 108.229 H9 C3 H10 107.224
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.454      
2 C -0.547      
3 C -0.653      
4 O -0.519      
5 O -0.347      
6 H 0.255      
7 H 0.255      
8 H 0.225      
9 H 0.236      
10 H 0.236      
11 H 0.403      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.458 -0.185 0.000 1.469
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.877 -0.426 0.000
y -0.426 -24.990 0.000
z 0.000 0.000 -29.285
Traceless
 xyz
x -7.739 -0.426 0.000
y -0.426 7.090 0.000
z 0.000 0.000 0.649
Polar
3z2-r21.298
x2-y2-9.886
xy-0.426
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.068 -0.135 0.000
y -0.135 6.601 0.000
z 0.000 0.000 4.369


<r2> (average value of r2) Å2
<r2> 123.125
(<r2>)1/2 11.096