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All results from a given calculation for CH3CH2CHO (Propanal)

using model chemistry: G3

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at G3
 hartrees
Energy at 0K-192.985926
Energy at 298.15K-192.979911
HF Energy-191.952268
Nuclear repulsion energy119.190303
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 HF/6-31G*
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' 3286 3096 34.24 67.78 0.75 0.86
2 A' 3222 3036 20.95 127.77 0.02 0.03
3 A' 3192 3008 55.79 102.89 0.06 0.12
4 A' 3143 2961 108.07 109.35 0.51 0.67
5 A' 2027 1910 195.82 8.17 0.53 0.69
6 A' 1644 1549 6.81 9.36 0.75 0.86
7 A' 1608 1515 7.17 15.07 0.75 0.86
8 A' 1574 1483 9.08 7.34 0.66 0.80
9 A' 1550 1461 11.16 7.50 0.60 0.75
10 A' 1516 1428 5.28 1.23 0.33 0.50
11 A' 1208 1138 18.55 3.84 0.46 0.63
12 A' 1081 1019 1.91 5.14 0.71 0.83
13 A' 916 863 14.86 12.70 0.20 0.33
14 A' 722 680 13.35 1.74 0.75 0.85
15 A' 279 263 10.72 0.47 0.43 0.60
16 A" 3298 3107 34.24 42.11 0.75 0.86
17 A" 3214 3029 19.17 94.55 0.75 0.86
18 A" 1640 1545 4.61 18.42 0.75 0.86
19 A" 1407 1325 0.29 6.88 0.75 0.86
20 A" 1272 1198 0.05 1.54 0.75 0.86
21 A" 989 932 2.96 4.80 0.75 0.86
22 A" 741 698 1.42 2.92 0.75 0.86
23 A" 253 238 0.64 0.76 0.75 0.86
24 A" 141 133 4.51 1.36 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 19959.9 cm-1
Scaled (by 0.9422) Zero Point Vibrational Energy (zpe) 18806.2 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=FULL/6-31G*
ABC
0.54993 0.19900 0.15441

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.441 0.441 0.000
C2 0.000 0.923 0.000
C3 -0.998 -0.204 0.000
O4 -0.698 -1.389 0.000
H5 2.132 1.287 0.000
H6 1.643 -0.172 0.880
H7 1.643 -0.172 -0.880
H8 -0.216 1.554 0.873
H9 -0.216 1.554 -0.873
H10 -2.065 0.103 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 H5 H6 H7 H8 H9 H10
C11.51952.52322.81541.09231.09151.09152.17862.17863.5222
C21.51951.50482.41482.16312.16142.16141.09851.09852.2213
C32.52321.50481.22313.46722.78392.78392.11232.11231.1098
O42.81542.41481.22313.89522.78112.78113.10733.10732.0239
H51.09232.16313.46723.89521.77311.77312.51922.51924.3606
H61.09152.16142.78392.78111.77311.76002.53663.08323.8205
H71.09152.16142.78392.78111.77311.76003.08322.53663.8205
H82.17861.09852.11233.10732.51922.53663.08321.74532.5066
H92.17861.09852.11233.10732.51923.08322.53661.74532.5066
H103.52222.22131.10982.02394.36063.82053.82052.50662.5066

picture of Propanal state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 113.770 C1 C2 H8 111.296
C1 C2 H9 111.296 C2 C1 H5 110.492
C2 C1 H6 110.943 C2 C1 H7 110.943
C2 C3 O4 124.776 C2 C3 H10 115.021
C3 C2 H8 107.314 C3 C2 H9 107.314
O4 C3 H10 120.203 H5 C1 H6 108.376
H5 C1 H7 108.376 H6 C1 H7 107.605
H8 C2 H9 105.393
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability