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All results from a given calculation for CH2CHCHO (Acrolein)

using model chemistry: QCISD/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 QCISD/STO-3G
 hartrees
Energy at 0K-188.598810
Energy at 298.15K 
HF Energy-188.292692
Nuclear repulsion energy99.538529
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/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' 3504 3504 0.30      
2 A' 3419 3419 1.11      
3 A' 3361 3361 4.74      
4 A' 3212 3212 28.66      
5 A' 1765 1765 8.56      
6 A' 1705 1705 9.10      
7 A' 1543 1543 0.32      
8 A' 1447 1447 11.66      
9 A' 1376 1376 1.21      
10 A' 1196 1196 15.27      
11 A' 953 953 9.92      
12 A' 550 550 1.97      
13 A' 313 313 3.16      
14 A" 1070 1070 4.57      
15 A" 960 960 7.99      
16 A" 928 928 0.12      
17 A" 592 592 3.08      
18 A" 140 140 1.50      

Unscaled Zero Point Vibrational Energy (zpe) 14016.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 14016.6 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 QCISD/STO-3G
ABC
1.52897 0.14363 0.13130

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.124 -0.785 0.000
C2 0.000 0.746 0.000
C3 1.206 1.373 0.000
O4 -1.233 -1.409 0.000
H5 0.867 -1.327 0.000
H6 -0.948 1.321 0.000
H7 1.299 2.475 0.000
H8 2.153 0.799 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 H5 H6 H7 H8
C11.53592.53541.27181.13002.26163.55742.7742
C21.53591.35972.48222.24701.10882.16282.1538
C32.53541.35973.69962.72152.15461.10611.1072
O41.27182.48223.69962.10162.74484.63604.0420
H51.13002.24702.72152.10163.21073.82692.4848
H62.26161.10882.15462.74483.21072.52523.1445
H73.55742.16281.10614.63603.82692.52521.8816
H82.77422.15381.10724.04202.48483.14451.8816

picture of Acrolein state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 122.118 C1 C2 H6 116.631
C2 C1 O4 124.001 C2 C1 H5 114.023
C2 C3 H7 122.253 C2 C3 H8 121.294
C3 C2 H6 121.251 O4 C1 H5 121.976
H7 C3 H8 116.453
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability