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/aug-cc-pVDZ

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 MP2=FULL/aug-cc-pVDZ
Rotational Constants (cm-1) from geometry optimized at MP2=FULL/aug-cc-pVDZ
See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/aug-cc-pVDZ
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C1)

Jump to S1C1
Energy calculated at MP2=FULL/aug-cc-pVDZ
 hartrees
Energy at 0K-1071.557828
Energy at 298.15K 
HF Energy-1070.767833
Nuclear repulsion energy265.107073
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/aug-cc-pVDZ
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 3139 3042 5.00 78.88 0.16 0.27
2 A 3009 2917 43.74 134.76 0.26 0.41
3 A 1751 1697 94.96 14.50 0.40 0.57
4 A 1380 1337 10.41 3.83 0.27 0.43
5 A 1257 1218 11.34 1.81 0.68 0.81
6 A 1213 1176 9.87 4.55 0.69 0.82
7 A 1036 1004 15.34 1.72 0.29 0.44
8 A 937 908 4.06 3.61 0.54 0.70
9 A 824 799 72.86 6.30 0.72 0.84
10 A 653 633 30.09 13.27 0.07 0.12
11 A 615 596 27.40 5.62 0.43 0.60
12 A 345 334 1.36 3.10 0.14 0.24
13 A 278 270 3.14 3.08 0.61 0.76
14 A 220 213 2.94 0.89 0.63 0.77
15 A 84 82 9.95 1.39 0.74 0.85

Unscaled Zero Point Vibrational Energy (zpe) 8370.4 cm-1
Scaled (by 0.9692) Zero Point Vibrational Energy (zpe) 8112.6 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 MP2=FULL/aug-cc-pVDZ
ABC
0.12382 0.08901 0.05498

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/aug-cc-pVDZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.100 -0.024 0.530
C2 -0.712 -1.283 0.199
H3 0.235 0.064 1.617
Cl4 1.736 -0.264 -0.172
Cl5 -0.671 1.452 -0.059
O6 -1.810 -1.274 -0.321
H7 -0.190 -2.222 0.489

Atom - Atom Distances (Å)
  C1 C2 H3 Cl4 Cl5 O6 H7
C11.53371.09891.79681.76622.43602.2173
C21.53372.17272.67742.74701.21531.1128
H31.09892.17272.35822.35713.11902.5844
Cl41.79682.67742.35822.95843.69052.8250
Cl51.76622.74702.35712.95842.96583.7454
O62.43601.21533.11903.69052.96582.0443
H72.21731.11282.58442.82503.74542.0443

picture of dichloroacetaldehyde state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O6 124.376 C1 C2 H7 112.852
C2 C1 H3 110.144 C2 C1 Cl4 106.744
C2 C1 Cl5 112.513 H3 C1 Cl4 106.556
H3 C1 Cl5 108.458 Cl4 C1 Cl5 112.258
O6 C2 H7 122.772
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability