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All results from a given calculation for CH3CH2CHO (Propanal)

using model chemistry: CBS-Q

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CBS-Q
 hartrees
Energy at 0K-192.806519
Energy at 298.15K-192.800570
HF Energy-191.951673
Nuclear repulsion energy119.127469
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 CBS-Q
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3275 3275 33.29 67.65 0.75 0.86
2 A' 3206 3206 19.45 129.80 0.01 0.03
3 A' 3180 3180 50.27 93.90 0.08 0.15
4 A' 3117 3117 118.28 114.39 0.46 0.63
5 A' 2023 2023 211.45 8.02 0.57 0.73
6 A' 1635 1635 6.59 9.04 0.75 0.86
7 A' 1598 1598 7.47 13.70 0.75 0.86
8 A' 1561 1561 10.14 7.47 0.66 0.80
9 A' 1539 1539 11.51 6.96 0.61 0.75
10 A' 1504 1504 4.63 1.08 0.33 0.49
11 A' 1201 1201 18.35 3.63 0.44 0.61
12 A' 1072 1072 1.70 4.91 0.70 0.83
13 A' 911 911 15.20 12.54 0.19 0.32
14 A' 720 720 13.15 1.81 0.74 0.85
15 A' 277 277 10.48 0.51 0.45 0.62
16 A" 3287 3287 33.87 41.24 0.75 0.86
17 A" 3207 3207 18.51 94.31 0.75 0.86
18 A" 1631 1631 4.69 17.25 0.75 0.86
19 A" 1399 1399 0.20 6.21 0.75 0.86
20 A" 1264 1264 0.04 1.53 0.75 0.86
21 A" 981 981 2.93 4.53 0.75 0.86
22 A" 733 733 1.47 2.64 0.75 0.86
23 A" 254 254 0.73 0.78 0.75 0.86
24 A" 145 145 4.37 1.31 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 19858.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 19858.8 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 CBS-Q
ABC
0.54858 0.19764 0.15354

See section I.F.4 to change rotational constant units
Geometric Data calculated at CBS-Q

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.455 0.450 0.000
C2 0.000 0.911 0.000
C3 -0.997 -0.223 0.000
O4 -0.715 -1.373 0.000
H5 2.125 1.306 0.000
H6 1.671 -0.154 0.876
H7 1.671 -0.154 -0.876
H8 -0.219 1.535 0.868
H9 -0.219 1.535 -0.868
H10 -2.053 0.088 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 H5 H6 H7 H8 H9 H10
C11.52572.54272.83371.08721.08601.08602.17552.17553.5257
C21.52571.51012.39282.16192.16632.16631.09171.09172.2112
C32.54271.51011.18403.47712.80922.80922.10972.10971.1001
O42.83372.39281.18403.90422.81862.81863.07513.07511.9810
H51.08722.16193.47713.90421.76221.76222.51092.51094.3518
H61.08602.16632.80922.81861.76221.75232.53503.07713.8327
H71.08602.16632.80922.81861.76221.75233.07712.53503.8327
H82.17551.09172.10973.07512.51092.53503.07711.73622.4916
H92.17551.09172.10973.07512.51093.07712.53501.73622.4916
H103.52572.21121.10011.98104.35183.83273.83272.49162.4916

picture of Propanal state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 113.771 C1 C2 H8 111.359
C1 C2 H9 111.359 C2 C1 H5 110.537
C2 C1 H6 110.962 C2 C1 H7 110.962
C2 C3 O4 124.855 C2 C3 H10 114.898
C3 C2 H8 107.267 C3 C2 H9 107.267
O4 C3 H10 120.247 H5 C1 H6 108.355
H5 C1 H7 108.355 H6 C1 H7 107.559
H8 C2 H9 105.350
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability