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

using model chemistry: QCISD(T)/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 QCISD(T)/6-31+G**
 hartrees
Energy at 0K-228.450832
Energy at 298.15K-228.455594
HF Energy-227.779860
Nuclear repulsion energy118.754010
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 QCISD(T)/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' 3778 3548        
2 A' 3055 2868        
3 A' 3031 2846        
4 A' 1768 1660        
5 A' 1527 1433        
6 A' 1461 1372        
7 A' 1414 1328        
8 A' 1303 1224        
9 A' 1135 1066        
10 A' 884 830        
11 A' 754 708        
12 A' 296 278        
13 A" 3088 2900        
14 A" 1252 1176        
15 A" 1120 1052        
16 A" 741 696        
17 A" 359 337        
18 A" 132 124        

Unscaled Zero Point Vibrational Energy (zpe) 13549.4 cm-1
Scaled (by 0.939) Zero Point Vibrational Energy (zpe) 12722.9 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 QCISD(T)/6-31+G**
ABC
0.60499 0.21635 0.16426

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.942 0.000
C2 0.936 -0.247 0.000
O3 -1.356 0.546 0.000
O4 0.517 -1.399 0.000
H5 -1.361 -0.425 0.000
H6 0.223 1.553 0.885
H7 0.223 1.553 -0.885
H8 2.017 -0.031 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 H5 H6 H7 H8
C11.51311.41262.39781.92921.09821.09822.2394
C21.51312.42481.22622.30342.12882.12881.1025
O31.41262.42482.70000.97122.07132.07133.4217
O42.39781.22622.70002.11503.09633.09632.0304
H51.92922.30340.97122.11502.68442.68443.4005
H61.09822.12882.07133.09632.68441.76972.5518
H71.09822.12882.07133.09632.68441.76972.5518
H82.23941.10253.42172.03043.40052.55182.5518

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 121.820 C1 C2 H8 116.910
C1 O3 H5 106.582 C2 C1 O3 111.904
C2 C1 H6 108.169 C2 C1 H7 108.169
O3 C1 H6 110.539 O3 C1 H7 110.539
O4 C2 H8 121.270 H6 C1 H7 107.364
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability