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All results from a given calculation for CH3CH2CHO (Propanal)

using model chemistry: MP2/cc-pVQZ

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/cc-pVQZ
 hartrees
Energy at 0K-192.828554
Energy at 298.15K-192.834917
HF Energy-192.036784
Nuclear repulsion energy118.978525
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/cc-pVQZ
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' 3186 3021 13.03      
2 A' 3093 2934 14.73      
3 A' 3065 2907 19.01      
4 A' 2956 2803 114.55      
5 A' 1770 1679 109.62      
6 A' 1516 1437 7.18      
7 A' 1461 1386 14.42      
8 A' 1429 1356 13.38      
9 A' 1414 1341 1.28      
10 A' 1374 1303 9.84      
11 A' 1128 1070 11.78      
12 A' 1012 960 0.85      
13 A' 880 834 21.15      
14 A' 673 638 5.85      
15 A' 258 245 8.12      
16 A" 3186 3021 13.16      
17 A" 3107 2947 5.13      
18 A" 1510 1432 7.42      
19 A" 1290 1224 0.31      
20 A" 1150 1091 0.73      
21 A" 905 858 1.14      
22 A" 673 638 3.17      
23 A" 234 222 0.48      
24 A" 142 135 2.76      

Unscaled Zero Point Vibrational Energy (zpe) 18706.3 cm-1
Scaled (by 0.9484) Zero Point Vibrational Energy (zpe) 17741.1 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/cc-pVQZ
ABC
0.55796 0.19969 0.15536

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.441 0.446 0.000
C2 0.000 0.915 0.000
C3 -0.994 -0.208 0.000
O4 -0.698 -1.382 0.000
H5 2.121 1.292 0.000
H6 1.645 -0.164 0.875
H7 1.645 -0.164 -0.875
H8 -0.225 1.540 0.868
H9 -0.225 1.540 -0.868
H10 -2.055 0.099 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 H5 H6 H7 H8 H9 H10
C11.51512.52072.81341.08631.08621.08622.17352.17353.5130
C21.51511.49952.40112.15462.15342.15341.09281.09282.2113
C32.52071.49951.21153.45762.78082.78082.09712.09711.1046
O42.81342.40111.21153.88622.78202.78203.08473.08472.0091
H51.08632.15463.45763.88621.76461.76462.51392.51394.3437
H61.08622.15342.78082.78201.76461.75032.53003.07233.8115
H71.08622.15342.78082.78201.76461.75033.07232.53003.8115
H82.17351.09282.09713.08472.51392.53003.07231.73582.4857
H92.17351.09282.09713.08472.51393.07232.53001.73582.4857
H103.51302.21131.10462.00914.34373.81153.81152.48572.4857

picture of Propanal state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 113.480 C1 C2 H8 111.890
C1 C2 H9 111.890 C2 C1 H5 110.766
C2 C1 H6 110.669 C2 C1 H7 110.669
C2 C3 O4 124.333 C2 C3 H10 115.408
C3 C2 H8 106.949 C3 C2 H9 106.949
O4 C3 H10 120.259 H5 C1 H6 108.639
H5 C1 H7 108.639 H6 C1 H7 107.358
H8 C2 H9 105.164
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability