return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: CCD/6-31G**

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 CCD/6-31G**
 hartrees
Energy at 0K-228.425040
Energy at 298.15K-228.429883
HF Energy-227.772595
Nuclear repulsion energy119.440611
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 CCD/6-31G**
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' 3862 3621 55.86      
2 A' 3083 2890 73.94      
3 A' 3063 2872 32.89      
4 A' 1868 1752 92.26      
5 A' 1561 1463 5.65      
6 A' 1501 1407 73.15      
7 A' 1450 1360 16.60      
8 A' 1346 1262 53.02      
9 A' 1172 1099 69.53      
10 A' 906 850 43.44      
11 A' 776 728 13.89      
12 A' 311 291 21.58      
13 A" 3111 2917 32.57      
14 A" 1282 1202 2.52      
15 A" 1151 1079 0.62      
16 A" 766 718 0.52      
17 A" 368 345 95.66      
18 A" 142 133 14.12      

Unscaled Zero Point Vibrational Energy (zpe) 13859.3 cm-1
Scaled (by 0.9376) Zero Point Vibrational Energy (zpe) 12994.4 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 CCD/6-31G**
ABC
0.61136 0.21905 0.16624

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.939 0.000
C2 0.930 -0.252 0.000
O3 -1.347 0.545 0.000
O4 0.508 -1.391 0.000
H5 -1.341 -0.421 0.000
H6 0.233 1.551 0.880
H7 0.233 1.551 -0.880
H8 2.010 -0.039 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8
C11.51081.40342.38441.91051.09681.09682.2349
C21.51082.41181.21462.27722.12332.12331.1006
O31.40342.41182.68030.96622.06942.06943.4067
O42.38441.21462.68032.08743.08243.08242.0207
H51.91052.27720.96622.08742.67252.67253.3725
H61.09682.12332.06943.08242.67251.76032.5411
H71.09682.12332.06943.08242.67251.76032.5411
H82.23491.10063.40672.02073.37252.54112.5411

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 121.682 C1 C2 H8 116.829
C1 O3 H5 105.992 C2 C1 O3 111.656
C2 C1 H6 107.983 C2 C1 H7 107.983
O3 C1 H6 111.139 O3 C1 H7 111.139
O4 C2 H8 121.489 H6 C1 H7 106.736
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability