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All results from a given calculation for CHCl2CHO (dichloroacetaldehyde)

using model chemistry: QCISD(T)/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 2 yes C1 1A

Conformer 1 (C1)

Jump to S1C2
Vibrational Frequencies calculated at QCISD(T)/6-311G*
Rotational Constants (cm-1) from geometry optimized at QCISD(T)/6-311G*
See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)/6-311G*
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C1)

Jump to S1C1
Energy calculated at QCISD(T)/6-311G*
 hartrees
Energy at 0K-1071.586091
Energy at 298.15K 
HF Energy-1070.781569
Nuclear repulsion energy265.271246
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)/6-311G*
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 3104 2988        
2 A 2958 2848        
3 A 1806 1739        
4 A 1413 1361        
5 A 1300 1252        
6 A 1268 1221        
7 A 1036 997        
8 A 945 910        
9 A 833 802        
10 A 654 629        
11 A 625 602        
12 A 350 337        
13 A 284 274        
14 A 226 217        
15 A 82 79        

Unscaled Zero Point Vibrational Energy (zpe) 8441.1 cm-1
Scaled (by 0.9628) Zero Point Vibrational Energy (zpe) 8127.1 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)/6-311G*
ABC
0.12357 0.08905 0.05489

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)/6-311G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.103 -0.021 0.521
C2 -0.722 -1.281 0.199
H3 0.230 0.058 1.606
Cl4 1.737 -0.268 -0.170
Cl5 -0.669 1.455 -0.058
O6 -1.808 -1.276 -0.321
H7 -0.211 -2.218 0.505

Atom - Atom Distances (Å)
  C1 C2 H3 Cl4 Cl5 O6 H7
C11.53961.09471.79181.76392.43592.2184
C21.53962.16312.68482.74881.20411.1103
H31.09472.16312.35202.35073.10552.5661
Cl41.79182.68482.35202.96183.68882.8371
Cl51.76392.74882.35072.96182.97093.7440
O62.43591.20413.10553.68882.97092.0301
H72.21841.11032.56612.83713.74402.0301

picture of dichloroacetaldehyde state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O6 124.756 C1 C2 H7 112.681
C2 C1 H3 109.237 C2 C1 Cl4 107.156
C2 C1 Cl5 112.449 H3 C1 Cl4 106.639
H3 C1 Cl5 108.355 Cl4 C1 Cl5 112.806
O6 C2 H7 122.561
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability