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All results from a given calculation for CH3CH2CHO (Propanal)

using model chemistry: CCSD/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CCSD/6-311G**
 hartrees
Energy at 0K-192.675552
Energy at 298.15K-192.681957
HF Energy-192.001813
Nuclear repulsion energy118.312212
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 CCSD/6-311G**
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' 3146 3146 23.63      
2 A' 3071 3071 15.91      
3 A' 3048 3048 27.92      
4 A' 2940 2940 128.28      
5 A' 1838 1838 120.71      
6 A' 1523 1523 7.09      
7 A' 1485 1485 7.91      
8 A' 1451 1451 11.08      
9 A' 1435 1435 4.72      
10 A' 1395 1395 7.27      
11 A' 1135 1135 13.37      
12 A' 1018 1018 1.00      
13 A' 875 875 17.88      
14 A' 678 678 8.22      
15 A' 264 264 8.13      
16 A" 3151 3151 25.77      
17 A" 3081 3081 12.39      
18 A" 1519 1519 5.85      
19 A" 1301 1301 0.48      
20 A" 1166 1166 0.41      
21 A" 915 915 1.28      
22 A" 690 690 1.77      
23 A" 246 246 0.37      
24 A" 140 140 2.67      

Unscaled Zero Point Vibrational Energy (zpe) 18756.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 18756.3 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 CCSD/6-311G**
ABC
0.55362 0.19655 0.15328

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.453 0.449 0.000
C2 0.000 0.921 0.000
C3 -1.002 -0.216 0.000
O4 -0.706 -1.386 0.000
H5 2.136 1.304 0.000
H6 1.659 -0.164 0.882
H7 1.659 -0.164 -0.882
H8 -0.221 1.548 0.876
H9 -0.221 1.548 -0.876
H10 -2.069 0.097 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 H5 H6 H7 H8 H9 H10
C11.52772.54362.83361.09491.09421.09422.18562.18563.5393
C21.52771.51582.41302.17042.17012.17011.09981.09982.2269
C32.54361.51581.20693.48742.80422.80422.11912.11911.1116
O42.83362.41301.20693.91382.80462.80463.10053.10052.0141
H51.09492.17043.48743.91381.77851.77852.52642.52644.3750
H61.09422.17012.80422.80461.77851.76502.54273.09173.8398
H71.09422.17012.80422.80461.77851.76503.09172.54273.8398
H82.18561.09982.11913.10052.52642.54273.09171.75252.5077
H92.18561.09982.11913.10052.52643.09172.54271.75252.5077
H103.53932.22691.11162.01414.37503.83983.83982.50772.5077

picture of Propanal state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 113.382 C1 C2 H8 111.534
C1 C2 H9 111.534 C2 C1 H5 110.616
C2 C1 H6 110.632 C2 C1 H7 110.632
C2 C3 O4 124.414 C2 C3 H10 115.029
C3 C2 H8 107.155 C3 C2 H9 107.155
O4 C3 H10 120.557 H5 C1 H6 108.677
H5 C1 H7 108.677 H6 C1 H7 107.519
H8 C2 H9 105.643
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability