return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: CCD/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 CCD/6-311G*
 hartrees
Energy at 0K-267.726280
Energy at 298.15K-267.733530
HF Energy-266.907158
Nuclear repulsion energy178.517490
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 CCD/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' 3832 3660 41.65      
2 A' 3145 3004 22.35      
3 A' 3071 2933 7.73      
4 A' 3066 2928 22.10      
5 A' 1907 1821 275.92      
6 A' 1533 1465 17.57      
7 A' 1505 1438 12.47      
8 A' 1471 1405 23.45      
9 A' 1452 1387 46.86      
10 A' 1362 1301 6.37      
11 A' 1226 1171 282.45      
12 A' 1120 1069 35.26      
13 A' 1036 989 1.95      
14 A' 846 808 10.35      
15 A' 635 606 25.15      
16 A' 478 457 21.71      
17 A' 259 247 2.36      
18 A" 3152 3011 23.78      
19 A" 3109 2969 3.80      
20 A" 1528 1459 8.58      
21 A" 1311 1252 0.08      
22 A" 1143 1092 0.57      
23 A" 830 793 19.90      
24 A" 675 645 111.58      
25 A" 531 507 28.92      
26 A" 222 212 0.00      
27 A" 54 51 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 20248.1 cm-1
Scaled (by 0.9551) Zero Point Vibrational Energy (zpe) 19338.9 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 CCD/6-311G*
ABC
0.34053 0.12741 0.09601

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.573 0.000
C2 -0.600 -0.814 0.000
C3 0.458 -1.913 0.000
O4 -0.959 1.524 0.000
O5 1.171 0.837 0.000
H6 -1.259 -0.887 0.874
H7 -1.259 -0.887 -0.874
H8 -0.016 -2.900 0.000
H9 1.100 -1.837 -0.882
H10 1.100 -1.837 0.882
H11 -0.510 2.377 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 H6 H7 H8 H9 H10 H11
C11.51102.52741.35041.20052.11682.11683.47262.79232.79231.8743
C21.51101.52592.36492.42141.09721.09722.16642.17212.17213.1914
C32.52741.52593.71722.84072.18312.18311.09481.09371.09374.3971
O41.35042.36493.71722.23772.58202.58204.52304.03914.03910.9633
O51.20052.42142.84072.23773.10523.10523.92072.81682.81682.2794
H62.11681.09722.18312.58203.10521.74882.52233.09122.54373.4605
H72.11681.09722.18312.58203.10521.74882.52232.54373.09123.4605
H83.47262.16641.09484.52303.92072.52232.52231.77561.77565.2992
H92.79232.17211.09374.03912.81683.09122.54371.77561.76424.5963
H102.79232.17211.09374.03912.81682.54373.09121.77561.76424.5963
H111.87433.19144.39710.96332.27943.46053.46055.29924.59634.5963

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 112.661 C1 C2 H6 107.444
C1 C2 H7 107.444 C1 O4 H11 107.019
C2 C1 O4 111.358 C2 C1 O5 126.130
C2 C3 H8 110.429 C2 C3 H9 110.950
C2 C3 H10 110.950 C3 C2 H6 111.621
C3 C2 H7 111.621 O4 C1 O5 122.512
H6 C2 H7 105.675 H8 C3 H9 108.447
H8 C3 H10 108.447 H9 C3 H10 107.512
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability