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All results from a given calculation for CH3CH2CHO (Propanal)

using model chemistry: QCISD(T)=FULL/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 QCISD(T)=FULL/6-31+G**
 hartrees
Energy at 0K-192.648880
Energy at 298.15K-192.655220
HF Energy-191.964158
Nuclear repulsion energy118.085492
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 QCISD(T)=FULL/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' 3184 3184        
2 A' 3099 3099        
3 A' 3067 3067        
4 A' 2979 2979        
5 A' 1778 1778        
6 A' 1537 1537        
7 A' 1499 1499        
8 A' 1461 1461        
9 A' 1435 1435        
10 A' 1401 1401        
11 A' 1136 1136        
12 A' 1021 1021        
13 A' 875 875        
14 A' 671 671        
15 A' 258 258        
16 A" 3190 3190        
17 A" 3106 3106        
18 A" 1533 1533        
19 A" 1299 1299        
20 A" 1165 1165        
21 A" 910 910        
22 A" 688 688        
23 A" 234 234        
24 A" 126 126        

Unscaled Zero Point Vibrational Energy (zpe) 18825.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 18825.1 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 QCISD(T)=FULL/6-31+G**
ABC
0.55199 0.19584 0.15266

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)=FULL/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.452 0.454 0.000
C2 0.000 0.921 0.000
C3 -1.001 -0.210 0.000
O4 -0.706 -1.398 0.000
H5 2.126 1.312 0.000
H6 1.662 -0.154 0.880
H7 1.662 -0.154 -0.880
H8 -0.223 1.546 0.873
H9 -0.223 1.546 -0.873
H10 -2.064 0.095 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 H5 H6 H7 H8 H9 H10
C11.52512.54152.84361.09071.09001.09002.18142.18143.5345
C21.52511.51052.42412.16172.16592.16591.09661.09662.2235
C32.54151.51051.22453.47792.80522.80522.11022.11021.1059
O42.84362.42411.22453.91932.81532.81533.10893.10892.0188
H51.09072.16173.47793.91931.77141.77142.51662.51664.3635
H61.09002.16592.80522.81531.77141.75942.53833.08453.8367
H71.09002.16592.80522.81531.77141.75943.08452.53833.8367
H82.18141.09662.11023.10892.51662.53833.08451.74572.5021
H92.18141.09662.11023.10892.51663.08452.53831.74572.5021
H103.53452.22351.10592.01884.36353.83673.83672.50212.5021

picture of Propanal state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 113.701 C1 C2 H8 111.580
C1 C2 H9 111.580 C2 C1 H5 110.361
C2 C1 H6 110.741 C2 C1 H7 110.741
C2 C3 O4 124.503 C2 C3 H10 115.520
C3 C2 H8 107.003 C3 C2 H9 107.003
O4 C3 H10 119.977 H5 C1 H6 108.645
H5 C1 H7 108.645 H6 C1 H7 107.623
H8 C2 H9 105.490
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability