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

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 H in 1A'
Energy calculated at CCD/6-31G*
 hartrees
Energy at 0K-228.389187
Energy at 298.15K-228.394018
HF Energy-227.760368
Nuclear repulsion energy119.214518
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' 3734 3534 55.86      
2 A' 3045 2883 68.68      
3 A' 3026 2865 30.60      
4 A' 1864 1764 91.59      
5 A' 1553 1470 5.91      
6 A' 1503 1423 82.94      
7 A' 1443 1365 15.46      
8 A' 1349 1277 54.32      
9 A' 1170 1108 66.67      
10 A' 907 858 43.31      
11 A' 777 735 13.93      
12 A' 315 298 21.15      
13 A" 3070 2906 28.62      
14 A" 1275 1206 3.15      
15 A" 1147 1086 0.46      
16 A" 764 724 0.21      
17 A" 366 346 100.70      
18 A" 141 133 16.16      

Unscaled Zero Point Vibrational Energy (zpe) 13724.5 cm-1
Scaled (by 0.9465) Zero Point Vibrational Energy (zpe) 12990.2 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
0.60944 0.21841 0.16577

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 0.000 -0.933 0.000
C2 -0.934 0.274 0.000
O3 1.360 -0.587 0.000
O4 -0.521 1.412 0.000
H5 1.385 0.383 0.000
H6 -0.237 -1.544 0.885
H7 -0.237 -1.544 -0.885
H8 -2.022 0.056 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8
C11.52561.40322.40211.90991.10141.10142.2508
C21.52562.44981.21082.32082.13872.13871.1102
O31.40322.44982.74490.97012.06132.06133.4427
O42.40211.21082.74492.16593.09913.09912.0232
H51.90992.32080.97012.16592.66942.66943.4225
H61.10142.13872.06133.09912.66941.76992.5555
H71.10142.13872.06133.09912.66941.76992.5555
H82.25081.11023.44272.02323.42252.55552.5555

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 122.344 C1 C2 H8 116.406
C1 O3 H5 105.725 C2 C1 O3 113.467
C2 C1 H6 107.910 C2 C1 H7 107.910
O3 C1 H6 110.190 O3 C1 H7 110.190
O4 C2 H8 121.250 H6 C1 H7 106.926
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability