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

using model chemistry: MP2/TZVP

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/TZVP
 hartrees
Energy at 0K-228.532641
Energy at 298.15K-228.537372
HF Energy-227.849580
Nuclear repulsion energy119.403689
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/TZVP
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' 3762 3566 66.58      
2 A' 3061 2902 50.74      
3 A' 3021 2864 61.41      
4 A' 1764 1672 91.53      
5 A' 1514 1435 10.84      
6 A' 1461 1385 45.18      
7 A' 1427 1353 19.05      
8 A' 1302 1234 41.43      
9 A' 1143 1083 73.39      
10 A' 885 839 50.56      
11 A' 770 730 9.70      
12 A' 288 273 22.71      
13 A" 3098 2937 18.86      
14 A" 1260 1194 3.57      
15 A" 1127 1068 0.93      
16 A" 735 697 0.31      
17 A" 358 339 88.88      
18 A" 110 104 22.15      

Unscaled Zero Point Vibrational Energy (zpe) 13542.4 cm-1
Scaled (by 0.9479) Zero Point Vibrational Energy (zpe) 12836.8 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/TZVP
ABC
0.61362 0.21813 0.16590

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.935 0.000
C2 0.928 -0.250 0.000
O3 -1.350 0.550 0.000
O4 0.512 -1.393 0.000
H5 -1.341 -0.419 0.000
H6 0.236 1.540 0.883
H7 0.236 1.540 -0.883
H8 2.008 -0.030 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8
C11.50521.40422.38291.90561.09611.09612.2283
C21.50522.41531.21612.27592.11282.11281.1021
O31.40422.41532.69110.96912.06792.06793.4087
O42.38291.21612.69112.09323.07523.07522.0237
H51.90562.27590.96912.09322.66552.66553.3721
H61.09612.11282.06793.07522.66551.76562.5275
H71.09612.11282.06793.07522.66551.76562.5275
H82.22831.10213.40872.02373.37212.52752.5275

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 121.883 C1 C2 H8 116.587
C1 O3 H5 105.352 C2 C1 O3 112.181
C2 C1 H6 107.582 C2 C1 H7 107.582
O3 C1 H6 110.994 O3 C1 H7 110.994
O4 C2 H8 121.530 H6 C1 H7 107.289
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability