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: MP2=FULL/6-311G**

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 MP2=FULL/6-311G**
 hartrees
Energy at 0K-1071.695705
Energy at 298.15K-1071.698318
HF Energy-1070.788442
Nuclear repulsion energy264.180266
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 MP2=FULL/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' 3209 3044 1.42      
2 A' 3019 2864 46.27      
3 A' 1792 1700 103.50      
4 A' 1432 1358 2.98      
5 A' 1251 1187 11.17      
6 A' 1097 1040 27.48      
7 A' 823 780 19.47      
8 A' 450 427 4.72      
9 A' 334 317 20.90      
10 A' 270 256 1.95      
11 A" 1313 1246 26.12      
12 A" 1042 988 23.89      
13 A" 793 753 106.66      
14 A" 297 282 2.66      
15 A" 84 79 7.19      

Unscaled Zero Point Vibrational Energy (zpe) 8602.4 cm-1
Scaled (by 0.9486) Zero Point Vibrational Energy (zpe) 8160.3 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 MP2=FULL/6-311G**
ABC
0.10579 0.09556 0.05286

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.385 -0.027 0.000
C2 -0.171 1.390 0.000
H3 1.471 0.003 0.000
Cl4 -0.171 -0.839 1.469
Cl5 -0.171 -0.839 -1.469
O6 0.542 2.363 0.000
H7 -1.276 1.439 0.000

Atom - Atom Distances (Å)
  C1 C2 H3 Cl4 Cl5 O6 H7
C11.52191.08691.76801.76802.39482.2147
C21.52192.14922.66962.66961.20591.1058
H31.08692.14922.35872.35872.53573.0992
Cl41.76802.66962.35872.93793.59412.9270
Cl51.76802.66962.35872.93793.59412.9270
O62.39481.20592.53573.59413.59412.0389
H72.21471.10583.09922.92702.92702.0389

picture of dichloroacetaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O6 122.358 C1 C2 H7 113.940
C2 C1 H3 109.810 C2 C1 Cl4 108.240
C2 C1 Cl5 108.240 H3 C1 Cl4 109.078
H3 C1 Cl5 109.078 Cl4 C1 Cl5 112.368
O6 C2 H7 123.702
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C1)

Jump to S1C1
Energy calculated at MP2=FULL/6-311G**
 hartrees
Energy at 0K-1071.692862
Energy at 298.15K 
HF Energy-1070.785315
Nuclear repulsion energy266.835228
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 MP2=FULL/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 3159 2997 5.94 78.86 0.22 0.36
2 A 3007 2852 60.81 141.67 0.30 0.47
3 A 1801 1709 93.63 8.98 0.63 0.77
4 A 1424 1351 14.29 4.55 0.44 0.61
5 A 1306 1239 20.91 6.02 0.65 0.79
6 A 1269 1204 10.31 6.68 0.73 0.84
7 A 1056 1002 16.55 1.87 0.38 0.55
8 A 963 914 7.93 6.07 0.65 0.79
9 A 860 815 74.77 6.92 0.73 0.85
10 A 672 637 30.23 7.76 0.08 0.15
11 A 639 607 28.61 6.05 0.49 0.66
12 A 356 338 1.13 2.51 0.28 0.43
13 A 291 277 2.47 5.62 0.66 0.80
14 A 229 217 2.55 1.55 0.70 0.82
15 A 87 83 9.14 2.23 0.74 0.85

Unscaled Zero Point Vibrational Energy (zpe) 8559.7 cm-1
Scaled (by 0.9486) Zero Point Vibrational Energy (zpe) 8119.8 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 MP2=FULL/6-311G**
ABC
0.12487 0.09023 0.05561

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-311G**

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.105 -0.017 0.518
C2 -0.715 -1.272 0.205
H3 0.230 0.057 1.599
Cl4 1.725 -0.266 -0.171
Cl5 -0.667 1.446 -0.057
O6 -1.795 -1.273 -0.325
H7 -0.202 -2.198 0.529

Atom - Atom Distances (Å)
  C1 C2 H3 Cl4 Cl5 O6 H7
C11.53161.09071.77741.75122.42842.2021
C21.53162.14552.66552.73141.20291.1066
H31.09072.14552.33932.33953.09332.5329
Cl41.77742.66552.33932.94313.66402.8166
Cl51.75122.73142.33952.94312.95603.7197
O62.42841.20293.09333.66402.95602.0302
H72.20211.10662.53292.81663.71972.0302

picture of dichloroacetaldehyde state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O6 124.827 C1 C2 H7 112.162
C2 C1 H3 108.637 C2 C1 Cl4 107.091
C2 C1 Cl5 112.441 H3 C1 Cl4 106.844
H3 C1 Cl5 108.572 Cl4 C1 Cl5 113.034
O6 C2 H7 123.010
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability