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

using model chemistry: B2PLYP=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 B2PLYP=FULL/6-31G*
 hartrees
Energy at 0K-268.124581
Energy at 298.15K-268.131744
HF Energy-267.872766
Nuclear repulsion energy177.979236
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 B2PLYP=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' 3703 3511 51.56      
2 A' 3176 3012 21.63      
3 A' 3101 2941 17.86      
4 A' 3091 2932 11.56      
5 A' 1845 1750 233.20      
6 A' 1551 1471 9.67      
7 A' 1514 1436 11.64      
8 A' 1467 1392 2.96      
9 A' 1445 1370 51.38      
10 A' 1338 1269 3.34      
11 A' 1194 1132 238.40      
12 A' 1111 1053 64.45      
13 A' 1033 979 1.37      
14 A' 831 788 8.80      
15 A' 616 584 21.25      
16 A' 470 445 21.96      
17 A' 255 242 2.66      
18 A" 3184 3020 20.98      
19 A" 3126 2965 5.07      
20 A" 1546 1466 5.79      
21 A" 1312 1244 0.02      
22 A" 1138 1079 0.40      
23 A" 829 786 18.05      
24 A" 683 647 105.14      
25 A" 526 499 19.29      
26 A" 216 204 0.00      
27 A" 44 41 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 20170.6 cm-1
Scaled (by 0.9484) Zero Point Vibrational Energy (zpe) 19129.8 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 B2PLYP=FULL/6-31G*
ABC
0.33658 0.12727 0.09559

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.570 0.000
C2 -0.605 -0.814 0.000
C3 0.449 -1.914 0.000
O4 -0.961 1.531 0.000
O5 1.184 0.834 0.000
H6 -1.263 -0.887 0.872
H7 -1.263 -0.887 -0.872
H8 -0.027 -2.897 0.000
H9 1.090 -1.840 -0.880
H10 1.090 -1.840 0.880
H11 -0.484 2.382 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 H6 H7 H8 H9 H10 H11
C11.50982.52391.35871.21352.11592.11593.46682.78712.78711.8759
C21.50981.52382.37112.43221.09531.09532.16192.16812.16813.1980
C32.52391.52383.72202.84452.17932.17931.09251.09151.09154.3963
O41.35872.37113.72202.25522.58752.58754.52494.04224.04220.9756
O51.21352.43222.84452.25523.11633.11633.92272.81632.81632.2761
H62.11591.09532.17932.58753.11631.74462.51603.08532.53903.4715
H72.11591.09532.17932.58753.11631.74462.51602.53903.08533.4715
H83.46682.16191.09254.52493.92272.51602.51601.77261.77265.2988
H92.78712.16811.09154.04222.81633.08532.53901.77261.76094.5909
H102.78712.16811.09154.04222.81632.53903.08531.77261.76094.5909
H111.87593.19804.39630.97562.27613.47153.47155.29884.59094.5909

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 112.610 C1 C2 H6 107.561
C1 C2 H7 107.561 C1 O4 H11 105.788
C2 C1 O4 111.397 C2 C1 O5 126.194
C2 C3 H8 110.361 C2 C3 H9 110.915
C2 C3 H10 110.915 C3 C2 H6 111.581
C3 C2 H7 111.581 O4 C1 O5 122.409
H6 C2 H7 105.579 H8 C3 H9 108.507
H8 C3 H10 108.507 H9 C3 H10 107.538
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability