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

using model chemistry: MP2=FULL/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 MP2=FULL/6-31G*
 hartrees
Energy at 0K-267.605299
Energy at 298.15K-267.612524
HF Energy-266.842823
Nuclear repulsion energy178.055175
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 MP2=FULL/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' 3694 3481 65.45      
2 A' 3215 3029 16.01      
3 A' 3126 2945 15.56      
4 A' 3119 2939 7.31      
5 A' 1853 1746 207.00      
6 A' 1565 1475 10.76      
7 A' 1530 1441 12.89      
8 A' 1482 1396 4.30      
9 A' 1460 1375 64.81      
10 A' 1342 1265 4.12      
11 A' 1200 1131 229.04      
12 A' 1125 1060 75.53      
13 A' 1048 988 1.84      
14 A' 843 795 7.80      
15 A' 620 584 20.69      
16 A' 474 447 23.88      
17 A' 258 243 2.47      
18 A" 3224 3038 14.92      
19 A" 3165 2982 3.16      
20 A" 1560 1470 6.59      
21 A" 1323 1246 0.01      
22 A" 1149 1083 0.28      
23 A" 838 789 16.60      
24 A" 684 645 112.47      
25 A" 531 500 20.79      
26 A" 222 209 0.00      
27 A" 55 52 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 20352.2 cm-1
Scaled (by 0.9422) Zero Point Vibrational Energy (zpe) 19175.8 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 MP2=FULL/6-31G*
ABC
0.33505 0.12805 0.09591

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.566 0.000
C2 -0.606 -0.811 0.000
C3 0.448 -1.907 0.000
O4 -0.963 1.528 0.000
O5 1.189 0.829 0.000
H6 -1.263 -0.883 0.873
H7 -1.263 -0.883 -0.873
H8 -0.027 -2.891 0.000
H9 1.087 -1.830 -0.881
H10 1.087 -1.830 0.881
H11 -0.481 2.380 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 H6 H7 H8 H9 H10 H11
C11.50472.51321.36091.21782.11132.11133.45702.77442.77441.8768
C21.50471.52012.36602.43131.09541.09542.15862.16332.16333.1938
C32.51321.52013.71302.83412.17702.17701.09251.09131.09134.3865
O41.36092.36603.71302.26292.58122.58124.51654.03124.03120.9793
O51.21782.43132.83412.26293.11553.11553.91312.80212.80212.2798
H62.11131.09542.17702.58123.11551.74642.51463.08202.53423.4671
H72.11131.09542.17702.58123.11551.74642.51462.53423.08203.4671
H83.45702.15861.09254.51653.91312.51462.51461.77311.77315.2904
H92.77442.16331.09134.03122.80213.08202.53421.77311.76184.5779
H102.77442.16331.09134.03122.80212.53423.08201.77311.76184.5779
H111.87683.19384.38650.97932.27983.46713.46715.29044.57794.5779

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 112.369 C1 C2 H6 107.545
C1 C2 H7 107.545 C1 O4 H11 105.475
C2 C1 O4 111.208 C2 C1 O5 126.194
C2 C3 H8 110.356 C2 C3 H9 110.800
C2 C3 H10 110.800 C3 C2 H6 111.655
C3 C2 H7 111.655 O4 C1 O5 122.599
H6 C2 H7 105.722 H8 C3 H9 108.572
H8 C3 H10 108.572 H9 C3 H10 107.653
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability