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All results from a given calculation for CHOCH2OH (hydroxy acetaldehyde)

using model chemistry: CCD/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS H in 1A'
Energy calculated at CCD/STO-3G
 hartrees
Energy at 0K-225.029319
Energy at 298.15K-225.033710
HF Energy-224.762553
Nuclear repulsion energy115.252481
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/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' 3660 3660 15.76      
2 A' 3273 3273 17.35      
3 A' 3243 3243 5.59      
4 A' 1770 1770 3.85      
5 A' 1677 1677 3.10      
6 A' 1653 1653 24.91      
7 A' 1447 1447 10.65      
8 A' 1412 1412 22.89      
9 A' 1156 1156 6.32      
10 A' 944 944 5.16      
11 A' 746 746 4.12      
12 A' 259 259 10.32      
13 A" 3329 3329 8.22      
14 A" 1285 1285 0.09      
15 A" 1088 1088 2.52      
16 A" 756 756 0.34      
17 A" 335 335 46.05      
18 A" 80 80 9.97      

Unscaled Zero Point Vibrational Energy (zpe) 14056.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 14056.3 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/STO-3G
ABC
0.55746 0.20790 0.15604

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.983 0.000
C2 0.981 -0.248 0.000
O3 -1.404 0.533 0.000
O4 0.514 -1.424 0.000
H5 -1.264 -0.488 0.000
H6 0.207 1.617 0.904
H7 0.207 1.617 -0.904
H8 2.084 -0.029 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8
C11.57371.47382.46101.93861.12321.12322.3166
C21.57372.50931.26572.25722.21202.21201.1247
O31.47382.50932.74001.03052.14102.14103.5327
O42.46101.26572.74002.00893.18723.18722.1008
H51.93862.25721.03052.00892.72162.72163.3789
H61.12322.21202.14103.18722.72161.80732.6550
H71.12322.21202.14103.18722.72161.80732.6550
H82.31661.12473.53272.10083.37892.65502.6550

picture of hydroxy acetaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O4 119.771 C1 C2 H8 117.331
C1 O3 H5 99.938 C2 C1 O3 110.811
C2 C1 H6 109.068 C2 C1 H7 109.068
O3 C1 H6 110.336 O3 C1 H7 110.336
O4 C2 H8 122.897 H6 C1 H7 107.135
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability