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

using model chemistry: BLYP/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 BLYP/6-31G*
 hartrees
Energy at 0K-268.304961
Energy at 298.15K-268.311925
HF Energy-268.304961
Nuclear repulsion energy176.046783
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 BLYP/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' 3518 3489 19.41      
2 A' 3052 3028 26.19      
3 A' 2989 2964 21.82      
4 A' 2969 2944 14.38      
5 A' 1764 1750 215.09      
6 A' 1495 1482 7.35      
7 A' 1453 1442 11.19      
8 A' 1406 1395 3.24      
9 A' 1368 1357 24.88      
10 A' 1284 1274 1.94      
11 A' 1128 1119 194.65      
12 A' 1050 1042 99.21      
13 A' 986 978 0.69      
14 A' 784 777 9.15      
15 A' 587 582 15.65      
16 A' 448 444 19.92      
17 A' 246 244 2.57      
18 A" 3059 3034 26.69      
19 A" 2994 2970 7.64      
20 A" 1489 1477 4.87      
21 A" 1259 1248 0.01      
22 A" 1088 1079 0.13      
23 A" 795 789 16.12      
24 A" 665 660 88.94      
25 A" 505 500 16.70      
26 A" 208 207 0.01      
27 A" 23 23 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 19305.1 cm-1
Scaled (by 0.9919) Zero Point Vibrational Energy (zpe) 19148.8 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 BLYP/6-31G*
ABC
0.32947 0.12429 0.09339

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.579 0.000
C2 -0.602 -0.824 0.000
C3 0.462 -1.937 0.000
O4 -0.982 1.541 0.000
O5 1.192 0.853 0.000
H6 -1.270 -0.903 0.877
H7 -1.270 -0.903 -0.877
H8 -0.017 -2.929 0.000
H9 1.110 -1.864 -0.888
H10 1.110 -1.864 0.888
H11 -0.508 2.405 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 H6 H7 H8 H9 H10 H11
C11.52752.55801.37391.22332.14042.14043.50852.82662.82661.8948
C21.52751.53912.39542.45621.10561.10562.18452.19062.19063.2308
C32.55801.53913.76502.88332.19942.19941.10181.10121.10124.4485
O41.37392.39543.76502.28042.61262.61264.57274.09324.09320.9858
O51.22332.45622.88332.28043.14913.14913.97032.85922.85922.3022
H62.14041.10562.19942.61263.14911.75492.53863.11482.56643.5065
H72.14041.10562.19942.61263.14911.75492.53862.56643.11483.5065
H83.50852.18451.10184.57273.97032.53862.53861.78631.78635.3566
H92.82662.19061.10124.09322.85923.11482.56641.78631.77504.6506
H102.82662.19061.10124.09322.85922.56643.11481.78631.77504.6506
H111.89483.23084.44850.98582.30223.50653.50655.35664.65064.6506

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 113.057 C1 C2 H6 107.676
C1 C2 H7 107.676 C1 O4 H11 105.655
C2 C1 O4 111.184 C2 C1 O5 126.119
C2 C3 H8 110.525 C2 C3 H9 111.045
C2 C3 H10 111.045 C3 C2 H6 111.478
C3 C2 H7 111.478 O4 C1 O5 122.696
H6 C2 H7 105.058 H8 C3 H9 108.353
H8 C3 H10 108.353 H9 C3 H10 107.401
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.528      
2 C -0.301      
3 C -0.395      
4 O -0.527      
5 O -0.431      
6 H 0.159      
7 H 0.159      
8 H 0.129      
9 H 0.149      
10 H 0.149      
11 H 0.383      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.360 -0.241 0.000 1.381
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.240 -0.508 0.000
y -0.508 -25.154 0.000
z 0.000 0.000 -29.193
Traceless
 xyz
x -7.066 -0.508 0.000
y -0.508 6.562 0.000
z 0.000 0.000 0.504
Polar
3z2-r21.008
x2-y2-9.085
xy-0.508
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.006 -0.122 0.000
y -0.122 6.816 0.000
z 0.000 0.000 4.219


<r2> (average value of r2) Å2
<r2> 126.389
(<r2>)1/2 11.242