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

using model chemistry: CID/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 CID/6-31G*
 hartrees
Energy at 0K-267.493272
Energy at 298.15K-267.500609
HF Energy-266.845764
Nuclear repulsion energy179.184362
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 CID/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3887 3591 83.10      
2 A' 3260 3011 21.64      
3 A' 3183 2940 8.30      
4 A' 3179 2937 19.77      
5 A' 1968 1818 301.00      
6 A' 1597 1475 14.72      
7 A' 1567 1447 11.80      
8 A' 1533 1416 27.98      
9 A' 1510 1395 53.87      
10 A' 1396 1289 2.64      
11 A' 1266 1169 279.06      
12 A' 1160 1072 36.78      
13 A' 1072 990 2.01      
14 A' 873 806 9.20      
15 A' 648 599 28.58      
16 A' 490 452 22.94      
17 A' 264 244 2.82      
18 A" 3270 3020 20.56      
19 A" 3218 2973 4.17      
20 A" 1591 1470 6.14      
21 A" 1359 1255 0.07      
22 A" 1184 1094 1.21      
23 A" 862 797 21.65      
24 A" 693 641 118.68      
25 A" 546 504 25.01      
26 A" 225 208 0.00      
27 A" 61 57 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 20931.2 cm-1
Scaled (by 0.9237) Zero Point Vibrational Energy (zpe) 19334.1 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 CID/6-31G*
ABC
0.34287 0.12849 0.09676

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.569 0.000
C2 -0.602 -0.808 0.000
C3 0.447 -1.907 0.000
O4 -0.949 1.522 0.000
O5 1.172 0.829 0.000
H6 -1.256 -0.878 0.869
H7 -1.256 -0.878 -0.869
H8 -0.031 -2.884 0.000
H9 1.085 -1.835 -0.877
H10 1.085 -1.835 0.877
H11 -0.491 2.373 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 H6 H7 H8 H9 H10 H11
C11.50292.51571.34471.20052.10392.10393.45302.77942.77941.8691
C21.50291.51882.35612.41371.09031.09032.15262.16052.16053.1828
C32.51571.51883.70212.82982.17152.17151.08801.08691.08694.3808
O41.34472.35613.70212.23112.57102.57104.50064.02174.02170.9658
O51.20052.41372.82982.23113.09263.09263.90272.80582.80582.2689
H62.10391.09032.17152.57103.09261.73842.50613.07352.52913.4506
H72.10391.09032.17152.57103.09261.73842.50612.52913.07353.4506
H83.45302.15261.08804.50063.90272.50612.50611.76511.76515.2765
H92.77942.16051.08694.02172.80583.07352.52911.76511.75474.5776
H102.77942.16051.08694.02172.80582.52913.07351.76511.75474.5776
H111.86913.18284.38080.96582.26893.45063.45065.27654.57764.5776

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 112.724 C1 C2 H6 107.385
C1 C2 H7 107.385 C1 O4 H11 106.847
C2 C1 O4 111.546 C2 C1 O5 126.094
C2 C3 H8 110.239 C2 C3 H9 110.937
C2 C3 H10 110.937 C3 C2 H6 111.619
C3 C2 H7 111.619 O4 C1 O5 122.360
H6 C2 H7 105.731 H8 C3 H9 108.495
H8 C3 H10 108.495 H9 C3 H10 107.645
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability