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All results from a given calculation for CH3CH2CHO (Propanal)

using model chemistry: MP4=FULL/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP4=FULL/3-21G
 hartrees
Energy at 0K-191.326428
Energy at 298.15K-191.332778
HF Energy-190.872675
Nuclear repulsion energy116.810571
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 MP4=FULL/3-21G
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' 3117 3051        
2 A' 3048 2983        
3 A' 3021 2957        
4 A' 2880 2819        
5 A' 1618 1584        
6 A' 1575 1541        
7 A' 1533 1500        
8 A' 1481 1450        
9 A' 1424 1394        
10 A' 1368 1339        
11 A' 1114 1090        
12 A' 1003 982        
13 A' 826 808        
14 A' 672 658        
15 A' 269 264        
16 A" 3120 3054        
17 A" 3054 2989        
18 A" 1579 1545        
19 A" 1326 1298        
20 A" 1176 1151        
21 A" 929 910        
22 A" 713 698        
23 A" 230 226        
24 A" 124 122        

Unscaled Zero Point Vibrational Energy (zpe) 18599.7 cm-1
Scaled (by 0.9788) Zero Point Vibrational Energy (zpe) 18205.4 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 MP4=FULL/3-21G
ABC
0.52223 0.19717 0.15127

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4=FULL/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.453 0.418 0.000
C2 0.000 0.957 0.000
C3 -1.016 -0.191 0.000
O4 -0.699 -1.405 0.000
H5 2.175 1.245 0.000
H6 1.625 -0.206 0.887
H7 1.625 -0.206 -0.887
H8 -0.192 1.586 0.886
H9 -0.192 1.586 -0.886
H10 -2.078 0.134 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 H5 H6 H7 H8 H9 H10
C11.55022.54302.82041.09801.09761.09762.20342.20343.5427
C21.55021.53292.46312.19402.18592.18591.10311.10312.2349
C32.54301.53291.25433.49902.78542.78542.14982.14981.1111
O42.82042.46311.25433.90942.76132.76133.16013.16012.0666
H51.09802.19403.49903.90941.78731.78732.54972.54974.3957
H61.09762.18592.78542.76131.78731.77392.55113.10663.8227
H71.09762.18592.78542.76131.78731.77393.10662.55113.8227
H82.20341.10312.14983.16012.54972.55113.10661.77172.5398
H92.20341.10312.14983.16012.54973.10662.55111.77172.5398
H103.54272.23491.11112.06664.39573.82273.82272.53982.5398

picture of Propanal state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 111.137 C1 C2 H8 111.166
C1 C2 H9 111.166 C2 C1 H5 110.730
C2 C1 H6 110.118 C2 C1 H7 110.118
C2 C3 O4 123.886 C2 C3 H10 114.462
C3 C2 H8 108.177 C3 C2 H9 108.177
O4 C3 H10 121.651 H5 C1 H6 108.992
H5 C1 H7 108.992 H6 C1 H7 107.827
H8 C2 H9 106.846
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability