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

using model chemistry: MP2/aug-cc-pVDZ

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 MP2/aug-cc-pVDZ
 hartrees
Energy at 0K-228.480593
Energy at 298.15K-228.485492
HF Energy-227.803628
Nuclear repulsion energy118.633119
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 MP2/aug-cc-pVDZ
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' 3700 3549 68.48      
2 A' 3039 2914 66.37      
3 A' 3011 2887 46.34      
4 A' 1733 1662 97.12      
5 A' 1472 1412 14.94      
6 A' 1436 1377 40.54      
7 A' 1381 1324 17.14      
8 A' 1288 1235 42.49      
9 A' 1129 1083 70.95      
10 A' 886 849 47.66      
11 A' 754 723 11.06      
12 A' 282 270 21.43      
13 A" 3079 2953 14.30      
14 A" 1247 1196 2.39      
15 A" 1099 1053 0.70      
16 A" 725 695 0.08      
17 A" 404 388 82.31      
18 A" 200 192 5.07      

Unscaled Zero Point Vibrational Energy (zpe) 13431.2 cm-1
Scaled (by 0.959) Zero Point Vibrational Energy (zpe) 12880.6 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 MP2/aug-cc-pVDZ
ABC
0.60354 0.21621 0.16414

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.940 0.000
C2 0.934 -0.247 0.000
O3 -1.358 0.548 0.000
O4 0.514 -1.400 0.000
H5 -1.349 -0.426 0.000
H6 0.233 1.556 0.890
H7 0.233 1.556 -0.890
H8 2.025 -0.028 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8
C11.51111.41322.39621.92021.10721.10722.2447
C21.51112.42631.22702.29062.12982.12981.1129
O31.41322.42632.70200.97452.08262.08263.4318
O42.39621.22702.70202.10273.09993.09992.0414
H51.92022.29060.97452.10272.68752.68753.3980
H61.10722.12982.08263.09992.68751.78092.5521
H71.10722.12982.08263.09992.68751.78092.5521
H82.24471.11293.43182.04143.39802.55212.5521

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 121.778 C1 C2 H8 116.806
C1 O3 H5 105.596 C2 C1 O3 112.098
C2 C1 H6 107.876 C2 C1 H7 107.876
O3 C1 H6 110.857 O3 C1 H7 110.857
O4 C2 H8 121.415 H6 C1 H7 107.075
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability