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

using model chemistry: QCISD/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at QCISD/cc-pVDZ
 hartrees
Energy at 0K-267.694726
Energy at 298.15K-267.701949
HF Energy-266.869716
Nuclear repulsion energy177.627444
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 QCISD/cc-pVDZ
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' 3792 3638 56.82      
2 A' 3159 3031 22.20      
3 A' 3080 2955 5.32      
4 A' 3073 2948 27.47      
5 A' 1866 1790 245.82      
6 A' 1502 1441 16.04      
7 A' 1467 1408 11.84      
8 A' 1451 1392 40.10      
9 A' 1421 1363 19.05      
10 A' 1333 1279 0.33      
11 A' 1205 1156 245.29      
12 A' 1108 1063 36.87      
13 A' 1024 983 2.13      
14 A' 835 801 8.02      
15 A' 619 594 24.41      
16 A' 471 452 19.06      
17 A' 254 244 2.34      
18 A" 3165 3037 22.40      
19 A" 3120 2993 5.23      
20 A" 1493 1433 5.36      
21 A" 1286 1234 0.01      
22 A" 1116 1071 0.47      
23 A" 816 783 15.11      
24 A" 664 637 88.53      
25 A" 527 506 22.29      
26 A" 225 216 0.00      
27 A" 58 56 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 20064.8 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 19250.2 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 QCISD/cc-pVDZ
ABC
0.33551 0.12684 0.09534

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.575 0.000
C2 -0.609 -0.815 0.000
C3 0.451 -1.917 0.000
O4 -0.959 1.535 0.000
O5 1.184 0.830 0.000
H6 -1.273 -0.885 0.882
H7 -1.273 -0.885 -0.882
H8 -0.026 -2.912 0.000
H9 1.099 -1.837 -0.890
H10 1.099 -1.837 0.890
H11 -0.474 2.377 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 H6 H7 H8 H9 H10 H11
C11.51692.53171.35761.21142.12832.12833.48682.79512.79511.8638
C21.51691.52942.37552.43331.10611.10612.17722.18022.18023.1945
C32.53171.52943.72882.84262.19422.19421.10381.10341.10344.3923
O41.35762.37553.72882.25672.59502.59504.54414.04914.04910.9720
O51.21142.43332.84262.25673.12373.12373.93272.81222.81222.2681
H62.12831.10612.19422.59503.12371.76412.53813.10952.55523.4726
H72.12831.10612.19422.59503.12371.76412.53812.55523.10953.4726
H83.48682.17721.10384.54413.93272.53812.53811.79251.79255.3082
H92.79512.18021.10344.04912.81223.10952.55521.79251.77994.5848
H102.79512.18021.10344.04912.81222.55523.10951.79251.77994.5848
H111.86383.19454.39230.97202.26813.47263.47265.30824.58484.5848

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 112.417 C1 C2 H6 107.429
C1 C2 H7 107.429 C1 O4 H11 105.069
C2 C1 O4 111.345 C2 C1 O5 125.845
C2 C3 H8 110.502 C2 C3 H9 110.765
C2 C3 H10 110.765 C3 C2 H6 111.717
C3 C2 H7 111.717 O4 C1 O5 122.810
H6 C2 H7 105.772 H8 C3 H9 108.598
H8 C3 H10 108.598 H9 C3 H10 107.521
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability