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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-267.657431
Energy at 298.15K-267.664657
HF Energy-266.857789
Nuclear repulsion energy178.317603
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' 3817 3566 60.87      
2 A' 3246 3033 17.35      
3 A' 3149 2943 16.24      
4 A' 3147 2940 8.74      
5 A' 1854 1732 205.21      
6 A' 1563 1461 9.02      
7 A' 1522 1423 10.99      
8 A' 1477 1380 7.42      
9 A' 1456 1361 59.54      
10 A' 1336 1249 8.43      
11 A' 1196 1118 217.00      
12 A' 1122 1049 81.14      
13 A' 1045 976 1.69      
14 A' 843 788 7.70      
15 A' 618 577 21.13      
16 A' 473 442 22.97      
17 A' 256 240 2.42      
18 A" 3254 3041 16.74      
19 A" 3197 2988 3.80      
20 A" 1558 1456 5.26      
21 A" 1322 1236 0.00      
22 A" 1145 1069 0.31      
23 A" 833 778 14.43      
24 A" 679 635 108.32      
25 A" 529 494 19.23      
26 A" 223 209 0.00      
27 A" 52 49 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 20456.5 cm-1
Scaled (by 0.9344) Zero Point Vibrational Energy (zpe) 19114.5 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
0.33570 0.12834 0.09610

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 -0.605 -0.811 0.000
C3 0.447 -1.905 0.000
O4 -0.963 1.527 0.000
O5 1.189 0.827 0.000
H6 -1.259 -0.881 0.870
H7 -1.259 -0.881 -0.870
H8 -0.025 -2.885 0.000
H9 1.083 -1.826 -0.877
H10 1.083 -1.826 0.877
H11 -0.485 2.372 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 H6 H7 H8 H9 H10 H11
C11.50462.51161.35981.21722.10632.10633.45122.76892.76891.8693
C21.50461.51812.36502.42951.09031.09032.15352.15672.15673.1850
C32.51161.51813.71022.83072.17172.17171.08721.08631.08634.3772
O41.35982.36503.71022.26282.57712.57714.51014.02464.02460.9705
O51.21722.42952.83072.26283.10903.10903.90472.79602.79602.2782
H62.10631.09032.17172.57713.10901.73992.50913.07102.52583.4547
H72.10631.09032.17172.57713.10901.73992.50912.52583.07103.4547
H83.45122.15351.08724.51013.90472.50912.50911.76541.76545.2765
H92.76892.15671.08634.02462.79603.07102.52581.76541.75404.5663
H102.76892.15671.08634.02462.79602.52583.07101.76541.75404.5663
H111.86933.18504.37720.97052.27823.45473.45475.27654.56634.5663

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 112.381 C1 C2 H6 107.449
C1 C2 H7 107.449 C1 O4 H11 105.458
C2 C1 O4 111.205 C2 C1 O5 126.071
C2 C3 H8 110.401 C2 C3 H9 110.709
C2 C3 H10 110.709 C3 C2 H6 111.678
C3 C2 H7 111.678 O4 C1 O5 122.724
H6 C2 H7 105.855 H8 C3 H9 108.633
H8 C3 H10 108.633 H9 C3 H10 107.672
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability