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

using model chemistry: B3LYP/CEP-121G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYP/CEP-121G*
 hartrees
Energy at 0K-52.549996
Energy at 298.15K-52.556998
HF Energy-52.549996
Nuclear repulsion energy98.906928
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 B3LYP/CEP-121G*
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' 3717 3603 36.79      
2 A' 3103 3008 34.70      
3 A' 3035 2942 11.23      
4 A' 3032 2939 32.53      
5 A' 1790 1736 285.08      
6 A' 1511 1465 10.31      
7 A' 1476 1430 13.47      
8 A' 1427 1383 2.97      
9 A' 1401 1358 43.92      
10 A' 1307 1267 0.09      
11 A' 1162 1127 260.98      
12 A' 1077 1044 68.61      
13 A' 998 967 1.29      
14 A' 802 778 8.76      
15 A' 601 582 19.09      
16 A' 455 441 20.75      
17 A' 244 237 2.55      
18 A" 3113 3018 37.63      
19 A" 3063 2969 7.12      
20 A" 1504 1458 7.04      
21 A" 1279 1240 0.00      
22 A" 1106 1072 0.28      
23 A" 801 777 15.16      
24 A" 651 631 101.56      
25 A" 510 495 23.48      
26 A" 204 198 0.01      
27 A" 16 15 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 19692.4 cm-1
Scaled (by 0.9694) 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 B3LYP/CEP-121G*
ABC
0.33282 0.12437 0.09368

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-121G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.577 0.000
C2 -0.602 -0.826 0.000
C3 0.462 -1.937 0.000
O4 -0.975 1.541 0.000
O5 1.186 0.855 0.000
H6 -1.263 -0.899 0.876
H7 -1.263 -0.899 -0.876
H8 -0.021 -2.922 0.000
H9 1.105 -1.867 -0.884
H10 1.105 -1.867 0.884
H11 -0.505 2.397 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 H6 H7 H8 H9 H10 H11
C11.52642.55531.37131.21802.13022.13023.49822.82372.82371.8890
C21.52641.53832.39602.45441.09901.09902.17482.18672.18673.2241
C32.55531.53833.76262.88442.19492.19491.09691.09561.09564.4400
O41.37132.39603.76262.26672.60802.60804.56334.08924.08920.9762
O51.21802.45442.88442.26673.13663.13663.96512.86322.86322.2880
H62.13021.09902.19492.60803.13661.75112.52973.10492.55843.4930
H72.13021.09902.19492.60803.13661.75112.52972.55843.10493.4930
H83.49822.17481.09694.56333.96512.52972.52971.77851.77855.3403
H92.82372.18671.09564.08922.86323.10492.55841.77851.76754.6425
H102.82372.18671.09564.08922.86322.55843.10491.77851.76754.6425
H111.88903.22414.44000.97622.28803.49303.49305.34034.64254.6425

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 112.980 C1 C2 H6 107.343
C1 C2 H7 107.343 C1 O4 H11 105.933
C2 C1 O4 111.441 C2 C1 O5 126.480
C2 C3 H8 110.108 C2 C3 H9 111.128
C2 C3 H10 111.128 C3 C2 H6 111.575
C3 C2 H7 111.575 O4 C1 O5 122.079
H6 C2 H7 105.622 H8 C3 H9 108.419
H8 C3 H10 108.419 H9 C3 H10 107.535
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-121G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.256      
2 C -0.314      
3 C -0.524      
4 O -0.436      
5 O -0.296      
6 H 0.188      
7 H 0.188      
8 H 0.170      
9 H 0.174      
10 H 0.174      
11 H 0.419      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.499 -0.381 0.000 1.546
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.152 -0.456 0.000
y -0.456 -25.363 0.000
z 0.000 0.000 -29.577
Traceless
 xyz
x -7.681 -0.456 0.000
y -0.456 7.001 0.000
z 0.000 0.000 0.680
Polar
3z2-r21.360
x2-y2-9.788
xy-0.456
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.494 -0.125 0.000
y -0.125 7.074 0.000
z 0.000 0.000 4.791


<r2> (average value of r2) Å2
<r2> 104.746
(<r2>)1/2 10.235