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

using model chemistry: CCD/3-21G

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/3-21G
 hartrees
Energy at 0K-226.921449
Energy at 298.15K-226.926365
HF Energy-226.480653
Nuclear repulsion energy117.400334
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/3-21G
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' 3481 3385 15.94      
2 A' 3026 2942 56.39      
3 A' 3008 2924 28.86      
4 A' 1716 1669 25.20      
5 A' 1586 1542 5.20      
6 A' 1492 1450 106.84      
7 A' 1446 1406 6.38      
8 A' 1330 1293 47.93      
9 A' 1057 1028 29.89      
10 A' 837 813 37.88      
11 A' 757 736 10.84      
12 A' 315 307 20.66      
13 A" 3040 2956 30.66      
14 A" 1255 1220 7.22      
15 A" 1139 1107 0.46      
16 A" 800 778 0.07      
17 A" 418 406 109.12      
18 A" 170 165 13.02      

Unscaled Zero Point Vibrational Energy (zpe) 13435.8 cm-1
Scaled (by 0.9723) Zero Point Vibrational Energy (zpe) 13063.6 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 CCD/3-21G
ABC
0.57359 0.21669 0.16211

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.968 0.000
C2 0.955 -0.230 0.000
O3 -1.380 0.506 0.000
O4 0.523 -1.394 0.000
H5 -1.319 -0.488 0.000
H6 0.209 1.583 0.891
H7 0.209 1.583 -0.891
H8 2.031 -0.001 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8
C11.53221.45582.41931.96511.10201.10202.2502
C21.53222.44811.24082.28852.15312.15311.1004
O31.45582.44812.68920.99562.11672.11673.4486
O42.41931.24082.68922.05323.12273.12272.0524
H51.96512.28850.99562.05322.72372.72373.3854
H61.10202.15312.11673.12272.72371.78102.5727
H71.10202.15312.11673.12272.72371.78102.5727
H82.25021.10043.44862.05243.38542.57272.5727

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 121.129 C1 C2 H8 116.505
C1 O3 H5 105.016 C2 C1 O3 110.004
C2 C1 H6 108.534 C2 C1 H7 108.534
O3 C1 H6 110.936 O3 C1 H7 110.936
O4 C2 H8 122.366 H6 C1 H7 107.814
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability