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

using model chemistry: MP2=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 MP2=FULL/cc-pVTZ
 hartrees
Energy at 0K-268.000571
Energy at 298.15K-268.007849
HF Energy-266.951081
Nuclear repulsion energy179.406471
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=FULL/cc-pVTZ
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' 3788 3596 74.50      
2 A' 3188 3026 14.01      
3 A' 3113 2956 19.55      
4 A' 3112 2954 3.72      
5 A' 1837 1744 227.74      
6 A' 1529 1452 11.05      
7 A' 1485 1410 14.68      
8 A' 1442 1369 24.83      
9 A' 1427 1355 49.37      
10 A' 1319 1252 4.69      
11 A' 1180 1120 211.13      
12 A' 1110 1054 83.06      
13 A' 1036 983 2.12      
14 A' 839 796 8.49      
15 A' 621 590 19.19      
16 A' 476 452 20.50      
17 A' 256 243 2.47      
18 A" 3190 3029 13.62      
19 A" 3142 2983 1.47      
20 A" 1524 1447 7.42      
21 A" 1305 1239 0.04      
22 A" 1125 1068 0.18      
23 A" 824 783 13.39      
24 A" 665 632 81.83      
25 A" 536 509 25.39      
26 A" 235 223 0.00      
27 A" 64 61 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 20183.5 cm-1
Scaled (by 0.9494) Zero Point Vibrational Energy (zpe) 19162.2 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 MP2=FULL/cc-pVTZ
ABC
0.34133 0.12965 0.09727

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.563 0.000
C2 -0.603 -0.805 0.000
C3 0.444 -1.896 0.000
O4 -0.953 1.521 0.000
O5 1.178 0.819 0.000
H6 -1.254 -0.872 0.867
H7 -1.254 -0.872 -0.867
H8 -0.025 -2.873 0.000
H9 1.080 -1.817 -0.874
H10 1.080 -1.817 0.874
H11 -0.474 2.361 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 H6 H7 H8 H9 H10 H11
C11.49512.49861.35151.20562.09402.09403.43632.75552.75551.8595
C21.49511.51152.35272.41011.08651.08652.14712.14882.14883.1690
C32.49861.51153.69162.81212.16392.16391.08411.08361.08364.3548
O41.35152.35273.69162.24402.56352.56354.49144.00474.00470.9671
O51.20562.41012.81212.24403.08663.08663.88302.77822.77822.2601
H62.09401.08652.16392.56353.08661.73402.50313.06092.51773.4375
H72.09401.08652.16392.56353.08661.73402.50312.51773.06093.4375
H83.43632.14711.08414.49143.88302.50312.50311.76091.76095.2536
H92.75552.14881.08364.00472.77823.06092.51771.76091.74764.5422
H102.75552.14881.08364.00472.77822.51773.06091.76091.74764.5422
H111.85953.16904.35480.96712.26013.43753.43755.25364.54224.5422

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 112.409 C1 C2 H6 107.351
C1 C2 H7 107.351 C1 O4 H11 105.446
C2 C1 O4 111.385 C2 C1 O5 126.014
C2 C3 H8 110.542 C2 C3 H9 110.709
C2 C3 H10 110.709 C3 C2 H6 111.748
C3 C2 H7 111.748 O4 C1 O5 122.601
H6 C2 H7 105.870 H8 C3 H9 108.650
H8 C3 H10 108.650 H9 C3 H10 107.490
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability