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

using model chemistry: B2PLYP=FULL/aug-cc-pVDZ

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/aug-cc-pVDZ
 hartrees
Energy at 0K-268.194391
Energy at 298.15K-268.201534
HF Energy-267.916828
Nuclear repulsion energy177.597095
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/aug-cc-pVDZ
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' 3754 3611 64.50      
2 A' 3151 3031 20.13      
3 A' 3072 2955 5.94      
4 A' 3071 2954 25.14      
5 A' 1791 1723 269.05      
6 A' 1490 1433 10.56      
7 A' 1453 1397 12.88      
8 A' 1415 1361 9.44      
9 A' 1399 1346 45.63      
10 A' 1301 1252 1.06      
11 A' 1164 1120 225.22      
12 A' 1089 1047 88.14      
13 A' 1016 977 1.35      
14 A' 819 787 5.71      
15 A' 607 583 17.19      
16 A' 465 447 20.36      
17 A' 250 240 2.79      
18 A" 3158 3037 21.12      
19 A" 3109 2990 3.05      
20 A" 1483 1426 6.69      
21 A" 1279 1230 0.05      
22 A" 1107 1064 0.23      
23 A" 806 775 11.87      
24 A" 652 627 88.80      
25 A" 524 504 19.39      
26 A" 213 205 0.02      
27 A" 46 44 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 19840.9 cm-1
Scaled (by 0.9618) Zero Point Vibrational Energy (zpe) 19082.9 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/aug-cc-pVDZ
ABC
0.33587 0.12641 0.09508

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.570 0.000
C2 -0.598 -0.816 0.000
C3 0.453 -1.921 0.000
O4 -0.967 1.531 0.000
O5 1.184 0.842 0.000
H6 -1.259 -0.886 0.876
H7 -1.259 -0.886 -0.876
H8 -0.033 -2.905 0.000
H9 1.097 -1.850 -0.885
H10 1.097 -1.850 0.885
H11 -0.506 2.386 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 H6 H7 H8 H9 H10 H11
C11.50992.53241.36341.21462.11492.11493.47522.80122.80121.8843
C21.50991.52572.37612.43421.09971.09972.16392.17412.17413.2027
C32.53241.52573.73332.85832.18452.18451.09731.09651.09654.4122
O41.36342.37613.73332.25872.58762.58764.53334.05954.05950.9707
O51.21462.43422.85832.25873.11773.11773.93962.83582.83582.2884
H62.11491.09972.18452.58763.11771.75302.51933.09552.54533.4693
H72.11491.09972.18452.58763.11771.75302.51932.54533.09553.4693
H83.47522.16391.09734.53333.93962.51932.51931.78081.78085.3112
H92.80122.17411.09654.05952.83583.09552.54531.78081.77044.6146
H102.80122.17411.09654.05952.83582.54533.09551.78081.77044.6146
H111.88433.20274.41220.97072.28843.46933.46935.31124.61464.6146

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 113.075 C1 C2 H6 107.234
C1 C2 H7 107.234 C1 O4 H11 106.448
C2 C1 O4 111.473 C2 C1 O5 126.278
C2 C3 H8 110.101 C2 C3 H9 110.959
C2 C3 H10 110.959 C3 C2 H6 111.594
C3 C2 H7 111.594 O4 C1 O5 122.250
H6 C2 H7 105.697 H8 C3 H9 108.533
H8 C3 H10 108.533 H9 C3 H10 107.668
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability