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

using model chemistry: CCSD/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 CCSD/6-31+G**
 hartrees
Energy at 0K-228.412870
Energy at 298.15K-228.417671
HF Energy-227.768743
Nuclear repulsion energy118.810609
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 CCSD/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' 3694 3450 59.36      
2 A' 3043 2841 71.50      
3 A' 3023 2823 27.18      
4 A' 1817 1696 120.81      
5 A' 1533 1431 10.78      
6 A' 1478 1380 52.67      
7 A' 1428 1333 16.77      
8 A' 1320 1232 50.62      
9 A' 1154 1077 69.62      
10 A' 899 839 48.34      
11 A' 764 714 13.37      
12 A' 301 281 21.10      
13 A" 3069 2866 18.68      
14 A" 1264 1181 3.44      
15 A" 1134 1059 0.74      
16 A" 755 705 0.01      
17 A" 357 334 112.50      
18 A" 140 131 19.26      

Unscaled Zero Point Vibrational Energy (zpe) 13585.2 cm-1
Scaled (by 0.9338) Zero Point Vibrational Energy (zpe) 12685.8 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 CCSD/6-31+G**
ABC
0.60880 0.21581 0.16425

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.938 0.000
C2 0.933 -0.249 0.000
O3 -1.356 0.550 0.000
O4 0.521 -1.398 0.000
H5 -1.377 -0.427 0.000
H6 0.222 1.554 0.887
H7 0.222 1.554 -0.887
H8 2.018 -0.033 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8
C11.51011.41092.39311.93931.10211.10212.2396
C21.51012.42491.22022.31732.13132.13131.1063
O31.41092.42492.70500.97722.07002.07003.4244
O42.39311.22022.70502.13213.09603.09602.0258
H51.93932.31730.97722.13212.69572.69573.4183
H61.10212.13132.07003.09602.69571.77412.5554
H71.10212.13132.07003.09602.69571.77412.5554
H82.23961.10633.42442.02583.41832.55542.5554

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 122.095 C1 C2 H8 116.893
C1 O3 H5 107.204 C2 C1 O3 112.192
C2 C1 H6 108.339 C2 C1 H7 108.339
O3 C1 H6 110.311 O3 C1 H7 110.311
O4 C2 H8 121.011 H6 C1 H7 107.188
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability