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

using model chemistry: MP2=FULL/6-31+G**

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/6-31+G**
 hartrees
Energy at 0K-228.439992
Energy at 298.15K-228.444807
HF Energy-227.780185
Nuclear repulsion energy119.074816
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/6-31+G**
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' 3777 3547 71.56      
2 A' 3093 2905 61.69      
3 A' 3069 2883 43.90      
4 A' 1763 1656 96.31      
5 A' 1532 1439 13.30      
6 A' 1461 1372 46.44      
7 A' 1423 1336 15.01      
8 A' 1303 1224 46.77      
9 A' 1145 1076 76.78      
10 A' 897 843 52.09      
11 A' 763 717 10.34      
12 A' 294 276 21.83      
13 A" 3136 2945 14.73      
14 A" 1266 1189 3.72      
15 A" 1131 1062 0.89      
16 A" 746 700 0.00      
17 A" 369 347 104.47      
18 A" 151 142 17.05      

Unscaled Zero Point Vibrational Energy (zpe) 13660.1 cm-1
Scaled (by 0.9392) Zero Point Vibrational Energy (zpe) 12829.5 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/6-31+G**
ABC
0.60795 0.21777 0.16526

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.937 0.000
C2 0.933 -0.243 0.000
O3 -1.352 0.544 0.000
O4 0.516 -1.396 0.000
H5 -1.358 -0.427 0.000
H6 0.223 1.547 0.881
H7 0.223 1.547 -0.881
H8 2.011 -0.026 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8
C11.50401.40842.38961.92521.09491.09492.2294
C21.50402.41671.22632.29812.11742.11741.0997
O31.40842.41672.69330.97152.06542.06543.4110
O42.38961.22632.69332.10933.08623.08622.0280
H51.92522.29810.97152.10932.67892.67893.3926
H61.09492.11742.06543.08622.67891.76282.5388
H71.09492.11742.06543.08622.67891.76282.5388
H82.22941.09973.41102.02803.39262.53882.5388

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 121.802 C1 C2 H8 116.942
C1 O3 H5 106.544 C2 C1 O3 112.112
C2 C1 H6 108.092 C2 C1 H7 108.092
O3 C1 H6 110.571 O3 C1 H7 110.571
O4 C2 H8 121.256 H6 C1 H7 107.228
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability