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

using model chemistry: B3LYP/CEP-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 B3LYP/CEP-31G*
 hartrees
Energy at 0K-52.534951
Energy at 298.15K-52.541949
HF Energy-52.534951
Nuclear repulsion energy98.606593
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-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' 3735 3607 44.15      
2 A' 3129 3022 38.43      
3 A' 3061 2956 7.69      
4 A' 3058 2954 36.89      
5 A' 1819 1756 296.87      
6 A' 1500 1449 12.31      
7 A' 1466 1416 13.01      
8 A' 1422 1373 8.27      
9 A' 1398 1350 50.99      
10 A' 1301 1257 0.56      
11 A' 1167 1127 260.44      
12 A' 1081 1044 55.15      
13 A' 1001 967 2.21      
14 A' 809 782 7.63      
15 A' 600 580 17.67      
16 A' 455 440 20.66      
17 A' 242 234 2.63      
18 A" 3141 3033 45.71      
19 A" 3097 2991 7.21      
20 A" 1493 1442 7.47      
21 A" 1274 1230 0.02      
22 A" 1096 1059 0.09      
23 A" 796 768 21.45      
24 A" 647 625 100.29      
25 A" 512 495 26.40      
26 A" 202 195 0.02      
27 A" 29 28 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 19765.9 cm-1
Scaled (by 0.9657) Zero Point Vibrational Energy (zpe) 19087.9 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-31G*
ABC
0.32980 0.12402 0.09328

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.577 0.000
C2 -0.609 -0.828 0.000
C3 0.462 -1.939 0.000
O4 -0.975 1.544 0.000
O5 1.191 0.857 0.000
H6 -1.270 -0.898 0.882
H7 -1.270 -0.898 -0.882
H8 -0.022 -2.931 0.000
H9 1.108 -1.864 -0.889
H10 1.108 -1.864 0.889
H11 -0.501 2.401 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 H6 H7 H8 H9 H10 H11
C11.53102.55811.37351.22392.13672.13673.50802.82422.82421.8917
C21.53101.54322.39992.46561.10421.10422.18372.19392.19393.2306
C32.55811.54323.76792.88982.20442.20441.10351.10221.10224.4457
O41.37352.39993.76792.27322.61292.61294.57544.09214.09210.9797
O51.22392.46562.88982.27323.14883.14883.97752.86362.86362.2909
H62.13671.10422.20442.61293.14881.76332.54323.11852.56693.5004
H72.13671.10422.20442.61293.14881.76332.54322.56693.11853.5004
H83.50802.18371.10354.57543.97752.54322.54321.79091.79095.3536
H92.82422.19391.10224.09212.86363.11852.56691.79091.77864.6443
H102.82422.19391.10224.09212.86362.56693.11851.79091.77864.6443
H111.89173.23064.44570.97972.29093.50043.50045.35364.64434.6443

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 112.638 C1 C2 H6 107.245
C1 C2 H7 107.245 C1 O4 H11 105.781
C2 C1 O4 111.316 C2 C1 O5 126.660
C2 C3 H8 110.083 C2 C3 H9 110.964
C2 C3 H10 110.964 C3 C2 H6 111.683
C3 C2 H7 111.683 O4 C1 O5 122.023
H6 C2 H7 105.972 H8 C3 H9 108.579
H8 C3 H10 108.579 H9 C3 H10 107.583
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.199      
2 C -0.096      
3 C -0.474      
4 O -0.319      
5 O -0.113      
6 H 0.153      
7 H 0.153      
8 H 0.167      
9 H 0.161      
10 H 0.161      
11 H 0.407      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.540 -0.447 0.000 1.604
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.773 -0.495 0.000
y -0.495 -24.920 0.000
z 0.000 0.000 -29.128
Traceless
 xyz
x -7.748 -0.495 0.000
y -0.495 7.030 0.000
z 0.000 0.000 0.718
Polar
3z2-r21.436
x2-y2-9.852
xy-0.495
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.040 -0.170 0.000
y -0.170 6.633 0.000
z 0.000 0.000 4.247


<r2> (average value of r2) Å2
<r2> 104.862
(<r2>)1/2 10.240