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

using model chemistry: B2PLYP=FULL/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B2PLYP=FULL/6-31G(2df,p)
 hartrees
Energy at 0K-268.211464
Energy at 298.15K-268.218630
HF Energy-267.901284
Nuclear repulsion energy178.606090
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 B2PLYP=FULL/6-31G(2df,p)
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' 3780 3780 56.33      
2 A' 3168 3168 17.98      
3 A' 3089 3089 15.87      
4 A' 3082 3082 10.74      
5 A' 1838 1838 228.21      
6 A' 1523 1523 9.36      
7 A' 1480 1480 12.12      
8 A' 1436 1436 3.49      
9 A' 1425 1425 50.01      
10 A' 1324 1324 2.66      
11 A' 1180 1180 222.02      
12 A' 1098 1098 61.82      
13 A' 1023 1023 1.74      
14 A' 827 827 9.24      
15 A' 615 615 20.87      
16 A' 468 468 19.13      
17 A' 252 252 2.75      
18 A" 3175 3175 16.65      
19 A" 3118 3118 3.59      
20 A" 1517 1517 5.32      
21 A" 1296 1296 0.06      
22 A" 1122 1122 0.38      
23 A" 820 820 16.97      
24 A" 673 673 82.62      
25 A" 529 529 20.48      
26 A" 212 212 0.01      
27 A" 46 46 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 20058.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 20058.5 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 B2PLYP=FULL/6-31G(2df,p)
ABC
0.33911 0.12811 0.09626

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.570 0.000
C2 -0.603 -0.811 0.000
C3 0.453 -1.907 0.000
O4 -0.959 1.525 0.000
O5 1.177 0.830 0.000
H6 -1.261 -0.883 0.871
H7 -1.261 -0.883 -0.871
H8 -0.017 -2.891 0.000
H9 1.093 -1.829 -0.879
H10 1.093 -1.829 0.879
H11 -0.489 2.370 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 H6 H7 H8 H9 H10 H11
C11.50762.51871.35301.20562.11202.11203.46152.77922.77921.8647
C21.50761.52242.36272.42151.09351.09352.16102.16482.16483.1830
C32.51871.52243.71102.83122.17862.17861.09051.08981.08984.3795
O41.35302.36273.71102.24662.57782.57784.51504.02874.02870.9672
O51.20562.42152.83122.24663.10453.10453.90792.80152.80152.2690
H62.11201.09352.17862.57783.10451.74132.51763.08192.53743.4546
H72.11201.09352.17862.57783.10451.74132.51762.53743.08193.4546
H83.46152.16101.09054.51503.90792.51762.51761.77001.77005.2820
H92.77922.16481.08984.02872.80153.08192.53741.77001.75724.5722
H102.77922.16481.08984.02872.80152.53743.08191.77001.75724.5722
H111.86473.18304.37950.96722.26903.45463.45465.28204.57224.5722

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 112.455 C1 C2 H6 107.512
C1 C2 H7 107.512 C1 O4 H11 105.765
C2 C1 O4 111.256 C2 C1 O5 126.023
C2 C3 H8 110.502 C2 C3 H9 110.850
C2 C3 H10 110.850 C3 C2 H6 111.729
C3 C2 H7 111.729 O4 C1 O5 122.721
H6 C2 H7 105.532 H8 C3 H9 108.545
H8 C3 H10 108.545 H9 C3 H10 107.450
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability