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 CHCl2CHO (dichloroacetaldehyde)

using model chemistry: CBS-Q

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
1 2 no C1 1A

Conformer 1 (C1)

Jump to S1C2
Energy calculated at CBS-Q
 hartrees
Energy at 0K-1071.891069
Energy at 298.15K-1071.884662
HF Energy-1070.703461
Nuclear repulsion energy264.590906
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 CBS-Q
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3372 3372 1.63      
2 A' 3211 3211 40.33      
3 A' 2043 2043 236.67      
4 A' 1528 1528 9.47      
5 A' 1348 1348 15.14      
6 A' 1160 1160 25.07      
7 A' 860 860 37.49      
8 A' 473 473 6.66      
9 A' 356 356 30.18      
10 A' 278 278 2.29      
11 A" 1376 1376 40.34      
12 A" 1134 1134 17.66      
13 A" 821 821 139.33      
14 A" 307 307 3.14      
15 A" 87 87 11.97      

Unscaled Zero Point Vibrational Energy (zpe) 9177.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9177.0 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 CBS-Q
ABC
0.10536 0.09469 0.05252

See section I.F.4 to change rotational constant units
Geometric Data calculated at CBS-Q

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.379 -0.012 0.000
C2 -0.170 1.409 0.000
H3 1.457 0.006 0.000
Cl4 -0.170 -0.843 1.468
Cl5 -0.170 -0.843 -1.468
O6 0.541 2.347 0.000
H7 -1.261 1.484 0.000

Atom - Atom Distances (Å)
  C1 C2 H3 Cl4 Cl5 O6 H7
C11.52391.07761.77381.77382.36492.2200
C21.52392.14842.68822.68821.17691.0932
H31.07762.14842.34972.34972.51403.0934
Cl41.77382.68822.34972.93603.58272.9596
Cl51.77382.68822.34972.93603.58272.9596
O62.36491.17692.51403.58273.58271.9976
H72.22001.09323.09342.95962.95961.9976

picture of dichloroacetaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O6 121.710 C1 C2 H7 115.060
C2 C1 H3 110.168 C2 C1 Cl4 108.973
C2 C1 Cl5 108.973 H3 C1 Cl4 108.507
H3 C1 Cl5 108.507 Cl4 C1 Cl5 111.706
O6 C2 H7 123.230
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C1)

Jump to S1C1
Energy calculated at CBS-Q
 hartrees
Energy at 0K-1071.888070
Energy at 298.15K-1071.881710
HF Energy-1070.700864
Nuclear repulsion energy267.219161
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 CBS-Q
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A 3316 3316 5.81 77.01 0.27 0.42
2 A 3192 3192 49.34 111.80 0.33 0.49
3 A 2054 2054 201.67 15.30 0.51 0.67
4 A 1527 1527 25.97 3.48 0.63 0.78
5 A 1414 1414 10.38 4.25 0.74 0.85
6 A 1362 1362 23.79 9.47 0.73 0.84
7 A 1144 1144 9.10 3.19 0.53 0.69
8 A 1030 1030 10.99 6.92 0.62 0.77
9 A 907 907 99.84 11.69 0.74 0.85
10 A 700 700 51.59 13.05 0.13 0.23
11 A 664 664 35.20 7.58 0.43 0.60
12 A 378 378 1.12 3.40 0.23 0.38
13 A 299 299 4.26 4.58 0.65 0.79
14 A 240 240 3.67 1.33 0.71 0.83
15 A 91 91 15.48 2.14 0.74 0.85

Unscaled Zero Point Vibrational Energy (zpe) 9158.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9158.0 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 CBS-Q
ABC
0.12499 0.08935 0.05525

See section I.F.4 to change rotational constant units
Geometric Data calculated at CBS-Q

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.093 -0.039 0.505
C2 -0.754 -1.269 0.169
H3 0.208 0.029 1.578
Cl4 1.727 -0.293 -0.160
Cl5 -0.630 1.461 -0.057
O6 -1.830 -1.229 -0.297
H7 -0.255 -2.208 0.429

Atom - Atom Distances (Å)
  C1 C2 H3 Cl4 Cl5 O6 H7
C11.53041.08111.78151.75792.39902.1982
C21.53042.14282.68552.74231.17321.0948
H31.08112.14282.33032.32913.04052.5568
Cl41.78152.68552.33032.94023.67982.8181
Cl51.75792.74232.32912.94022.95503.7206
O62.39901.17323.04053.67982.95501.9914
H72.19821.09482.55682.81813.72061.9914

picture of dichloroacetaldehyde state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O6 124.552 C1 C2 H7 112.664
C2 C1 H3 109.059 C2 C1 Cl4 108.118
C2 C1 Cl5 112.829 H3 C1 Cl4 106.398
H3 C1 Cl5 107.862 Cl4 C1 Cl5 112.340
O6 C2 H7 122.775
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability