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All results from a given calculation for CH2CHCHO (Acrolein)

using model chemistry: QCISD(T)/6-311G**

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)/6-311G**
 hartrees
Energy at 0K-191.474138
Energy at 298.15K 
HF Energy-190.808753
Nuclear repulsion energy102.434192
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)/6-311G**
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' 3237 3237        
2 A' 3183 3183        
3 A' 3139 3139        
4 A' 2905 2905        
5 A' 1763 1763        
6 A' 1655 1655        
7 A' 1455 1455        
8 A' 1392 1392        
9 A' 1287 1287        
10 A' 1167 1167        
11 A' 915 915        
12 A' 566 566        
13 A' 314 314        
14 A" 1015 1015        
15 A" 994 994        
16 A" 937 937        
17 A" 590 590        
18 A" 156 156        

Unscaled Zero Point Vibrational Energy (zpe) 13334.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 13334.0 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)/6-311G**
ABC
1.57683 0.15333 0.13974

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.152 -0.754 0.000
C2 0.000 0.724 0.000
C3 1.223 1.291 0.000
O4 -1.225 -1.326 0.000
H5 0.809 -1.319 0.000
H6 -0.919 1.310 0.000
H7 1.360 2.370 0.000
H8 2.124 0.676 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 H5 H6 H7 H8
C11.48612.46461.21591.11462.20193.47092.6878
C21.48611.34812.38812.19761.08962.13522.1242
C32.46461.34813.58362.64312.14191.08751.0907
O41.21592.38813.58362.03402.65344.51033.9015
H51.11462.19762.64312.03403.14603.73032.3896
H62.20191.08962.14192.65343.14602.51363.1078
H73.47092.13521.08754.51033.73032.51361.8580
H82.68782.12421.09073.90152.38963.10781.8580

picture of Acrolein state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 120.745 C1 C2 H6 116.651
C2 C1 O4 123.909 C2 C1 H5 114.593
C2 C3 H7 122.130 C2 C3 H8 120.792
C3 C2 H6 122.604 O4 C1 H5 121.499
H7 C3 H8 117.079
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability