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All results from a given calculation for CH2CHCHO (Acrolein)

using model chemistry: QCISD(T)/daug-cc-pVDZ

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 QCISD(T)/daug-cc-pVDZ
 hartrees
Energy at 0K-191.450176
Energy at 298.15K 
HF Energy-190.787388
Nuclear repulsion energy101.803354
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 QCISD(T)/daug-cc-pVDZ
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' 3235 3235        
2 A' 3186 3186        
3 A' 3131 3131        
4 A' 2913 2913        
5 A' 1724 1724        
6 A' 1641 1641        
7 A' 1440 1440        
8 A' 1367 1367        
9 A' 1280 1280        
10 A' 1165 1165        
11 A' 909 909        
12 A' 560 560        
13 A' 314 314        
14 A" 1009 1009        
15 A" 994 994        
16 A" 958 958        
17 A" 596 596        
18 A" 156 156        

Unscaled Zero Point Vibrational Energy (zpe) 13289.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 13289.7 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 QCISD(T)/daug-cc-pVDZ
ABC
1.55439 0.15173 0.13824

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)/daug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.156 -0.751 0.000
C2 0.000 0.730 0.000
C3 1.239 1.288 0.000
O4 -1.239 -1.330 0.000
H5 0.805 -1.326 0.000
H6 -0.918 1.331 0.000
H7 1.388 2.373 0.000
H8 2.137 0.656 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 H5 H6 H7 H8
C11.48912.47011.22761.12002.21623.48392.6897
C21.48911.35872.40392.20821.09652.15012.1379
C32.47011.35873.60432.64972.15711.09491.0978
O41.22762.40393.60432.04322.68004.53943.9159
H51.12002.20822.64972.04323.16623.74432.3877
H62.21621.09652.15712.68003.16622.52993.1279
H73.48392.15011.09494.53943.74432.52991.8731
H82.68972.13791.09783.91592.38773.12791.8731

picture of Acrolein state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 120.242 C1 C2 H6 117.177
C2 C1 O4 124.182 C2 C1 H5 114.898
C2 C3 H7 122.030 C2 C3 H8 120.621
C3 C2 H6 122.581 O4 C1 H5 120.920
H7 C3 H8 117.348
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability