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All results from a given calculation for CH3CH2CHO (Propanal)

using model chemistry: MP2=FULL/STO-3G

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=FULL/STO-3G
 hartrees
Energy at 0K-189.751392
Energy at 298.15K-189.757467
HF Energy-189.520050
Nuclear repulsion energy115.276177
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=FULL/STO-3G
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' 3559 3163 2.02      
2 A' 3395 3018 2.61      
3 A' 3379 3003 2.59      
4 A' 3284 2919 45.83      
5 A' 1771 1575 21.65      
6 A' 1735 1542 1.28      
7 A' 1703 1514 1.62      
8 A' 1620 1440 0.94      
9 A' 1527 1357 3.27      
10 A' 1494 1328 18.28      
11 A' 1219 1084 11.09      
12 A' 1110 987 0.15      
13 A' 928 825 9.34      
14 A' 675 600 4.56      
15 A' 241 214 1.95      
16 A" 3559 3164 2.58      
17 A" 3503 3114 1.67      
18 A" 1730 1538 1.23      
19 A" 1421 1263 0.00      
20 A" 1225 1089 0.17      
21 A" 932 829 1.15      
22 A" 750 667 2.41      
23 A" 216 192 0.17      
24 A" 98 87 0.86      

Unscaled Zero Point Vibrational Energy (zpe) 20536.0 cm-1
Scaled (by 0.8889) Zero Point Vibrational Energy (zpe) 18254.4 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/STO-3G
ABC
0.52416 0.18663 0.14522

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.476 0.466 0.000
C2 0.000 0.960 0.000
C3 -1.029 -0.222 0.000
O4 -0.716 -1.444 0.000
H5 2.172 1.323 0.000
H6 1.680 -0.149 0.893
H7 1.680 -0.149 -0.893
H8 -0.196 1.590 0.890
H9 -0.196 1.590 -0.890
H10 -2.102 0.116 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 H5 H6 H7 H8 H9 H10
C11.55682.59792.90781.10321.10311.10312.20252.20253.5952
C21.55681.56692.50842.20192.20242.20241.10761.10762.2648
C32.59791.56691.26153.55372.85312.85312.18362.18361.1251
O42.90782.50841.26153.99922.86632.86633.20423.20422.0868
H51.10322.20193.55373.99921.79001.79002.54352.54354.4406
H61.10312.20242.85312.86631.79001.78512.55823.11783.8950
H71.10312.20242.85312.86631.79001.78513.11782.55823.8950
H82.20251.10762.18363.20422.54352.55823.11781.77952.5682
H92.20251.10762.18363.20422.54353.11782.55821.77952.5682
H103.59522.26481.12512.08684.44063.89503.89502.56822.5682

picture of Propanal state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 112.536 C1 C2 H8 110.371
C1 C2 H9 110.371 C2 C1 H5 110.583
C2 C1 H6 110.624 C2 C1 H7 110.624
C2 C3 O4 124.616 C2 C3 H10 113.538
C3 C2 H8 108.234 C3 C2 H9 108.234
O4 C3 H10 121.845 H5 C1 H6 108.451
H5 C1 H7 108.451 H6 C1 H7 108.023
H8 C2 H9 106.900
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability