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

using model chemistry: MP2/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-267.926490
Energy at 298.15K-267.933692
HF Energy-266.950467
Nuclear repulsion energy178.751781
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/cc-pVTZ
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' 3771 3580 73.31      
2 A' 3184 3023 14.53      
3 A' 3097 2941 11.29      
4 A' 3094 2938 12.47      
5 A' 1825 1732 225.71      
6 A' 1519 1442 10.41      
7 A' 1474 1399 14.30      
8 A' 1430 1358 18.38      
9 A' 1418 1347 52.60      
10 A' 1312 1246 3.23      
11 A' 1173 1114 216.46      
12 A' 1102 1046 80.59      
13 A' 1026 974 1.80      
14 A' 831 789 8.22      
15 A' 616 584 19.10      
16 A' 470 446 20.23      
17 A' 253 240 2.42      
18 A" 3188 3027 14.25      
19 A" 3141 2982 1.62      
20 A" 1512 1436 7.13      
21 A" 1295 1230 0.04      
22 A" 1117 1061 0.17      
23 A" 816 775 12.55      
24 A" 659 625 83.86      
25 A" 527 500 23.37      
26 A" 217 206 0.01      
27 A" 55 52 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 20059.4 cm-1
Scaled (by 0.9495) Zero Point Vibrational Energy (zpe) 19046.4 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/cc-pVTZ
ABC
0.33874 0.12867 0.09653

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.566 0.000
C2 -0.605 -0.810 0.000
C3 0.449 -1.902 0.000
O4 -0.958 1.525 0.000
O5 1.181 0.824 0.000
H6 -1.259 -0.878 0.870
H7 -1.259 -0.878 -0.870
H8 -0.020 -2.884 0.000
H9 1.086 -1.823 -0.877
H10 1.086 -1.823 0.877
H11 -0.478 2.367 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 H6 H7 H8 H9 H10 H11
C11.50282.50871.35601.20892.10392.10393.44962.76662.76661.8634
C21.50281.51772.36182.42071.09041.09042.15462.15742.15743.1792
C32.50871.51773.70522.82332.17282.17281.08751.08701.08704.3687
O41.35602.36183.70522.25122.57362.57364.50774.01984.01980.9687
O51.20892.42072.82332.25123.09963.09963.89772.79002.79002.2656
H62.10391.09042.17282.57363.09961.73972.51263.07282.52823.4490
H72.10391.09042.17282.57363.09961.73972.51262.52823.07283.4490
H83.44962.15461.08754.50773.89772.51262.51261.76601.76605.2705
H92.76662.15741.08704.01982.79003.07282.52821.76601.75344.5573
H102.76662.15741.08704.01982.79002.52823.07281.76601.75344.5573
H111.86343.17924.36870.96872.26563.44903.44905.27054.55734.5573

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 112.310 C1 C2 H6 107.377
C1 C2 H7 107.377 C1 O4 H11 105.339
C2 C1 O4 111.304 C2 C1 O5 126.075
C2 C3 H8 110.505 C2 C3 H9 110.761
C2 C3 H10 110.761 C3 C2 H6 111.793
C3 C2 H7 111.793 O4 C1 O5 122.621
H6 C2 H7 105.830 H8 C3 H9 108.604
H8 C3 H10 108.604 H9 C3 H10 107.513
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability