return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for CH2CHOH (ethenol)

using model chemistry: CCD/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CCD/6-31G
 hartrees
Energy at 0K-153.150120
Energy at 298.15K-153.154192
Nuclear repulsion energy68.826640
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/6-31G
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' 3659 3511 10.30      
2 A' 3244 3113 18.77      
3 A' 3217 3086 1.90      
4 A' 3144 3016 5.76      
5 A' 1708 1639 63.30      
6 A' 1489 1429 13.54      
7 A' 1379 1323 1.94      
8 A' 1348 1294 7.38      
9 A' 1100 1055 149.28      
10 A' 945 907 40.85      
11 A' 482 462 14.15      
12 A" 979 939 40.66      
13 A" 867 832 65.50      
14 A" 687 659 0.05      
15 A" 407 390 185.39      

Unscaled Zero Point Vibrational Energy (zpe) 12327.1 cm-1
Scaled (by 0.9595) Zero Point Vibrational Energy (zpe) 11827.9 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/6-31G
ABC
1.94245 0.33619 0.28659

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.240 -0.068 0.000
C2 0.000 0.459 0.000
O3 -1.214 -0.260 0.000
H4 1.425 -1.146 0.000
H5 2.115 0.580 0.000
H6 -0.209 1.528 0.000
H7 -1.061 -1.227 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5 H6 H7
C11.34732.46081.09341.08942.15542.5761
C21.34731.41092.14672.11861.08871.9923
O32.46081.41092.78353.43322.05110.9782
H41.09342.14672.78351.85863.13362.4879
H51.08942.11863.43321.85862.50993.6543
H62.15541.08872.05113.13362.50992.8834
H72.57611.99230.97822.48793.65432.8834

picture of ethenol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 126.270 C1 C2 H6 124.117
C2 C1 H4 122.831 C2 C1 H5 120.426
C2 O3 H7 111.717 O3 C2 H6 109.613
H4 C1 H5 116.743
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability