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

using model chemistry: B2PLYP=FULL/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 B2PLYP=FULL/cc-pVTZ
 hartrees
Energy at 0K-268.321272
Energy at 298.15K-268.328470
HF Energy-267.981403
Nuclear repulsion energy178.719832
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/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' 3766 3600 63.48      
2 A' 3143 3004 19.83      
3 A' 3076 2940 18.74      
4 A' 3071 2935 10.41      
5 A' 1816 1736 252.19      
6 A' 1520 1452 9.87      
7 A' 1478 1413 14.33      
8 A' 1436 1373 2.47      
9 A' 1421 1358 52.54      
10 A' 1317 1259 3.88      
11 A' 1172 1121 220.11      
12 A' 1095 1047 86.17      
13 A' 1024 978 1.07      
14 A' 824 788 8.78      
15 A' 616 589 18.68      
16 A' 470 449 19.73      
17 A' 254 243 2.65      
18 A" 3148 3009 20.16      
19 A" 3098 2961 2.95      
20 A" 1513 1446 6.96      
21 A" 1299 1241 0.06      
22 A" 1123 1073 0.32      
23 A" 821 785 14.54      
24 A" 661 632 82.58      
25 A" 527 504 24.37      
26 A" 218 208 0.01      
27 A" 51 49 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 19978.3 cm-1
Scaled (by 0.9558) Zero Point Vibrational Energy (zpe) 19095.2 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 B2PLYP=FULL/cc-pVTZ
ABC
0.34038 0.12791 0.09623

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.569 0.000
C2 -0.597 -0.811 0.000
C3 0.452 -1.910 0.000
O4 -0.961 1.524 0.000
O5 1.176 0.835 0.000
H6 -1.252 -0.882 0.868
H7 -1.252 -0.882 -0.868
H8 -0.024 -2.887 0.000
H9 1.090 -1.837 -0.876
H10 1.090 -1.837 0.876
H11 -0.498 2.373 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 H6 H7 H8 H9 H10 H11
C11.50372.51911.35461.20532.10362.10363.45602.78252.78251.8714
C21.50371.51852.36322.41901.08991.08992.15352.16002.16003.1856
C32.51911.51853.71252.83822.17112.17111.08711.08651.08654.3863
O41.35462.36323.71252.24472.57372.57374.50934.03324.03320.9672
O51.20532.41902.83822.24473.09743.09743.91042.81282.81282.2728
H62.10361.08992.17112.57373.09741.73622.50693.07262.52973.4517
H72.10361.08992.17112.57373.09741.73622.50692.52973.07263.4517
H83.45602.15351.08714.50933.91042.50692.50691.76401.76405.2812
H92.78252.16001.08654.03322.81283.07262.52971.76401.75214.5836
H102.78252.16001.08654.03322.81282.52973.07261.76401.75214.5836
H111.87143.18564.38630.96722.27283.45173.45175.28124.58364.5836

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 112.930 C1 C2 H6 107.331
C1 C2 H7 107.331 C1 O4 H11 106.216
C2 C1 O4 111.432 C2 C1 O5 126.143
C2 C3 H8 110.380 C2 C3 H9 110.941
C2 C3 H10 110.941 C3 C2 H6 111.625
C3 C2 H7 111.625 O4 C1 O5 122.425
H6 C2 H7 105.595 H8 C3 H9 108.501
H8 C3 H10 108.501 H9 C3 H10 107.476
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability