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All results from a given calculation for CH2CHCHO (Acrolein)

using model chemistry: CCD/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS trans 1A'
Energy calculated at CCD/STO-3G
 hartrees
Energy at 0K-188.595795
Energy at 298.15K 
HF Energy-188.293265
Nuclear repulsion energy99.639866
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 CCD/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' 3507 3507 0.42      
2 A' 3419 3419 0.09      
3 A' 3366 3366 0.35      
4 A' 3247 3247 22.04      
5 A' 1773 1773 1.20      
6 A' 1711 1711 0.66      
7 A' 1552 1552 0.35      
8 A' 1457 1457 20.12      
9 A' 1377 1377 0.54      
10 A' 1202 1202 10.42      
11 A' 959 959 6.32      
12 A' 554 554 2.12      
13 A' 314 314 3.01      
14 A" 1076 1076 3.96      
15 A" 964 964 9.41      
16 A" 930 930 0.02      
17 A" 596 596 3.01      
18 A" 141 141 1.51      

Unscaled Zero Point Vibrational Energy (zpe) 14071.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 14071.6 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 CCD/STO-3G
ABC
1.53074 0.14399 0.13161

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.120 -0.787 0.000
C2 0.000 0.741 0.000
C3 1.202 1.377 0.000
O4 -1.230 -1.406 0.000
H5 0.864 -1.336 0.000
H6 -0.951 1.312 0.000
H7 1.284 2.479 0.000
H8 2.152 0.810 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 H5 H6 H7 H8
C11.53332.53571.27071.12702.25763.55542.7776
C21.53331.35932.47452.25021.10912.16082.1533
C32.53571.35933.69532.73392.15381.10561.1067
O41.27072.47453.69532.09532.73194.62754.0435
H51.12702.25022.73392.09533.21063.83862.5033
H62.25761.10912.15382.73193.21062.52173.1437
H73.55542.16081.10564.62753.83862.52171.8814
H82.77762.15331.10674.04352.50333.14371.8814

picture of Acrolein state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 122.360 C1 C2 H6 116.462
C2 C1 O4 123.624 C2 C1 H5 114.666
C2 C3 H7 122.142 C2 C3 H8 121.334
C3 C2 H6 121.178 O4 C1 H5 121.710
H7 C3 H8 116.524
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability