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All results from a given calculation for CH2CHCHO (Acrolein)

using model chemistry: CISD/6-31G(2df,p)

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 CISD/6-31G(2df,p)
 hartrees
Energy at 0K-191.380266
Energy at 298.15K 
HF Energy-190.782920
Nuclear repulsion energy103.813826
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 CISD/6-31G(2df,p)
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' 3364 3364 3.64      
2 A' 3317 3317 0.54      
3 A' 3269 3269 2.60      
4 A' 3052 3052 73.47      
5 A' 1921 1921 231.26      
6 A' 1776 1776 1.69      
7 A' 1523 1523 10.19      
8 A' 1461 1461 7.06      
9 A' 1350 1350 2.20      
10 A' 1221 1221 36.32      
11 A' 957 957 19.36      
12 A' 590 590 5.77      
13 A' 328 328 11.16      
14 A" 1099 1099 0.47      
15 A" 1092 1092 12.83      
16 A" 1064 1064 38.50      
17 A" 643 643 8.22      
18 A" 169 169 5.46      

Unscaled Zero Point Vibrational Energy (zpe) 14097.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 14097.5 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 CISD/6-31G(2df,p)
ABC
1.61715 0.15735 0.14339

See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.151 -0.746 0.000
C2 0.000 0.720 0.000
C3 1.201 1.276 0.000
O4 -1.203 -1.314 0.000
H5 0.799 -1.304 0.000
H6 -0.910 1.297 0.000
H7 1.340 2.344 0.000
H8 2.094 0.672 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 H5 H6 H7 H8
C11.47442.43291.19561.10142.18043.43142.6555
C21.47441.32342.36322.17611.07782.10552.0950
C32.43291.32343.53392.61132.11121.07661.0791
O41.19562.36323.53392.00242.62754.45523.8491
H51.10142.17612.61132.00243.11263.68772.3621
H62.18041.07782.11122.62753.11262.48223.0692
H73.43142.10551.07664.45523.68772.48221.8345
H82.65552.09501.07913.84912.36213.06921.8345

picture of Acrolein state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 120.721 C1 C2 H6 116.507
C2 C1 O4 124.196 C2 C1 H5 114.532
C2 C3 H7 122.304 C2 C3 H8 121.052
C3 C2 H6 122.772 O4 C1 H5 121.272
H7 C3 H8 116.644
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability