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

using model chemistry: MP2=FULL/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=FULL/cc-pVDZ
 hartrees
Energy at 0K-228.433572
Energy at 298.15K-228.438506
HF Energy-227.783976
Nuclear repulsion energy119.301842
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=FULL/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' 3740 3554 74.97      
2 A' 3044 2893 63.74      
3 A' 3010 2861 67.71      
4 A' 1784 1695 85.39      
5 A' 1496 1422 23.80      
6 A' 1466 1393 60.77      
7 A' 1399 1330 16.82      
8 A' 1320 1254 32.88      
9 A' 1160 1102 71.66      
10 A' 897 853 44.55      
11 A' 773 734 10.07      
12 A' 298 283 23.53      
13 A" 3082 2929 31.69      
14 A" 1258 1196 2.16      
15 A" 1116 1061 0.59      
16 A" 741 704 0.10      
17 A" 412 391 75.38      
18 A" 190 181 6.40      

Unscaled Zero Point Vibrational Energy (zpe) 13592.8 cm-1
Scaled (by 0.9504) Zero Point Vibrational Energy (zpe) 12918.6 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=FULL/cc-pVDZ
ABC
0.60666 0.22005 0.16654

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.941 0.000
C2 0.928 -0.252 0.000
O3 -1.343 0.546 0.000
O4 0.494 -1.394 0.000
H5 -1.298 -0.426 0.000
H6 0.250 1.557 0.887
H7 0.250 1.557 -0.887
H8 2.023 -0.039 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8
C11.51181.40032.38671.88541.10881.10882.2477
C21.51182.40741.22072.23252.12642.12641.1154
O31.40032.40742.67220.97342.08552.08553.4165
O42.38671.22072.67222.03703.09133.09132.0420
H51.88542.23250.97342.03702.66812.66813.3431
H61.10882.12642.08553.09132.66811.77452.5452
H71.10882.12642.08553.09132.66811.77452.5452
H82.24771.11543.41652.04203.34312.54522.5452

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 121.359 C1 C2 H8 116.838
C1 O3 H5 103.718 C2 C1 O3 111.467
C2 C1 H6 107.476 C2 C1 H7 107.476
O3 C1 H6 111.919 O3 C1 H7 111.919
O4 C2 H8 121.803 H6 C1 H7 106.289
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability