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

using model chemistry: CCD/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CCD/6-31+G**
 hartrees
Energy at 0K-267.679513
Energy at 298.15K-267.686711
HF Energy-266.865741
Nuclear repulsion energy178.106219
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 CCD/6-31+G**
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' 3863 3640 68.01      
2 A' 3208 3023 22.01      
3 A' 3126 2946 4.26      
4 A' 3123 2943 26.95      
5 A' 1882 1773 301.41      
6 A' 1551 1462 9.96      
7 A' 1521 1433 9.46      
8 A' 1481 1396 8.88      
9 A' 1459 1375 61.17      
10 A' 1341 1264 8.38      
11 A' 1211 1141 254.46      
12 A' 1124 1059 64.87      
13 A' 1043 983 1.15      
14 A' 844 796 6.22      
15 A' 625 589 22.92      
16 A' 475 447 21.76      
17 A' 255 240 2.38      
18 A" 3217 3031 22.57      
19 A" 3168 2985 3.54      
20 A" 1543 1454 6.10      
21 A" 1315 1239 0.01      
22 A" 1145 1079 0.50      
23 A" 832 784 10.76      
24 A" 645 608 103.66      
25 A" 524 493 32.41      
26 A" 218 206 0.00      
27 A" 46 43 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 20392.3 cm-1
Scaled (by 0.9423) Zero Point Vibrational Energy (zpe) 19215.7 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 CCD/6-31+G**
ABC
0.33783 0.12706 0.09557

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.570 0.000
C2 -0.600 -0.814 0.000
C3 0.452 -1.916 0.000
O4 -0.962 1.529 0.000
O5 1.182 0.837 0.000
H6 -1.254 -0.883 0.872
H7 -1.254 -0.883 -0.872
H8 -0.031 -2.893 0.000
H9 1.090 -1.845 -0.880
H10 1.090 -1.845 0.880
H11 -0.509 2.384 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 H6 H7 H8 H9 H10 H11
C11.50892.52731.35831.21142.10862.10863.46342.79192.79191.8841
C21.50891.52382.37122.42931.09251.09252.15532.16612.16613.1999
C32.52731.52383.72452.84852.17702.17701.08991.08901.08904.4067
O41.35832.37123.72452.25252.58202.58204.51924.04584.04580.9678
O51.21142.42932.84852.25253.10703.10703.92262.82442.82442.2914
H62.10861.09252.17702.58203.10701.74482.50913.08042.53333.4633
H72.10861.09252.17702.58203.10701.74482.50912.53333.08043.4633
H83.46342.15531.08994.51923.92262.50912.50911.76911.76915.2990
H92.79192.16611.08904.04582.82443.08042.53331.76911.76014.6061
H102.79192.16611.08904.04582.82442.53333.08041.76911.76014.6061
H111.88413.19994.40670.96782.29143.46333.46335.29904.60614.6061

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 112.888 C1 C2 H6 107.222
C1 C2 H7 107.222 C1 O4 H11 106.984
C2 C1 O4 111.478 C2 C1 O5 126.170
C2 C3 H8 109.985 C2 C3 H9 110.907
C2 C3 H10 110.907 C3 C2 H6 111.572
C3 C2 H7 111.572 O4 C1 O5 122.353
H6 C2 H7 105.984 H8 C3 H9 108.566
H8 C3 H10 108.566 H9 C3 H10 107.829
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability