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

using model chemistry: MP2/TZVP

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/TZVP
 hartrees
Energy at 0K-267.775921
Energy at 298.15K 
HF Energy-266.941897
Nuclear repulsion energy178.412622
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/TZVP
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' 3782 3585 66.89      
2 A' 3192 3026 17.76      
3 A' 3108 2946 9.14      
4 A' 3102 2941 16.97      
5 A' 1820 1725 237.17      
6 A' 1525 1445 9.98      
7 A' 1485 1408 11.57      
8 A' 1450 1374 3.30      
9 A' 1429 1354 57.43      
10 A' 1322 1254 3.71      
11 A' 1181 1120 221.74      
12 A' 1105 1048 105.25      
13 A' 1032 978 1.19      
14 A' 833 790 7.67      
15 A' 624 591 16.81      
16 A' 474 449 20.65      
17 A' 258 245 1.98      
18 A" 3198 3032 18.82      
19 A" 3154 2990 1.98      
20 A" 1517 1438 6.83      
21 A" 1297 1229 0.00      
22 A" 1128 1069 0.24      
23 A" 823 780 8.86      
24 A" 631 599 94.40      
25 A" 510 483 31.34      
26 A" 229 218 0.00      
27 A" 17i 16i 0.04      

Unscaled Zero Point Vibrational Energy (zpe) 20095.8 cm-1
Scaled (by 0.9479) Zero Point Vibrational Energy (zpe) 19048.8 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/TZVP
ABC
0.33763 0.12801 0.09609

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.567 0.000
C2 -0.599 -0.813 0.000
C3 0.455 -1.907 0.000
O4 -0.967 1.523 0.000
O5 1.180 0.834 0.000
H6 -1.251 -0.885 0.873
H7 -1.251 -0.885 -0.873
H8 -0.021 -2.887 0.000
H9 1.092 -1.830 -0.879
H10 1.092 -1.830 0.879
H11 -0.500 2.373 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 H6 H7 H8 H9 H10 H11
C11.50482.51561.35991.21002.10602.10603.45422.77772.77771.8738
C21.50481.51912.36492.42471.09171.09172.15312.16102.16103.1877
C32.51561.51913.71312.83512.17142.17141.08931.08851.08854.3852
O41.35992.36493.71312.25552.57712.57714.51044.03264.03260.9701
O51.21002.42472.83512.25553.10253.10253.90972.80702.80702.2787
H62.10601.09172.17142.57713.10251.74642.50653.07472.52663.4556
H72.10601.09172.17142.57713.10251.74642.50652.52663.07473.4556
H83.45422.15311.08934.51043.90972.50652.50651.76841.76845.2818
H92.77772.16101.08854.03262.80703.07472.52661.76841.75784.5803
H102.77772.16101.08854.03262.80702.52663.07471.76841.75784.5803
H111.87383.18774.38520.97012.27873.45563.45565.28184.58034.5803

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 112.588 C1 C2 H6 107.338
C1 C2 H7 107.338 C1 O4 H11 105.852
C2 C1 O4 111.187 C2 C1 O5 126.196
C2 C3 H8 110.174 C2 C3 H9 110.855
C2 C3 H10 110.855 C3 C2 H6 111.502
C3 C2 H7 111.502 O4 C1 O5 122.617
H6 C2 H7 106.237 H8 C3 H9 108.588
H8 C3 H10 108.588 H9 C3 H10 107.696
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability