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All results from a given calculation for CHCl2CHO (dichloroacetaldehyde)

using model chemistry: TPSSh/3-21G

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 TPSSh/3-21G
Rotational Constants (cm-1) from geometry optimized at TPSSh/3-21G
See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/3-21G
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C1)

Jump to S1C1
Energy calculated at TPSSh/3-21G
 hartrees
Energy at 0K-1067.762631
Energy at 298.15K 
HF Energy-1067.762631
Nuclear repulsion energy259.023691
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 TPSSh/3-21G
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 3172 3073 1.53 88.05 0.23 0.37
2 A 2975 2882 46.09 146.28 0.32 0.49
3 A 1717 1663 72.92 15.48 0.42 0.60
4 A 1412 1368 10.79 6.69 0.71 0.83
5 A 1247 1208 12.54 9.60 0.66 0.80
6 A 1172 1135 14.28 13.93 0.70 0.82
7 A 1023 991 14.47 4.29 0.70 0.82
8 A 908 880 10.47 5.98 0.54 0.70
9 A 756 732 72.05 7.11 0.71 0.83
10 A 596 577 55.57 12.28 0.21 0.34
11 A 585 566 43.63 15.36 0.25 0.40
12 A 324 314 3.49 4.29 0.26 0.41
13 A 244 236 4.00 9.11 0.60 0.75
14 A 213 207 1.64 2.59 0.73 0.84
15 A 100 97 9.57 2.47 0.71 0.83

Unscaled Zero Point Vibrational Energy (zpe) 8221.0 cm-1
Scaled (by 0.9688) Zero Point Vibrational Energy (zpe) 7964.5 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 TPSSh/3-21G
ABC
0.11934 0.08419 0.05281

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/3-21G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.086 -0.028 0.584
C2 -0.582 -1.353 0.229
H3 0.245 0.113 1.652
Cl4 1.810 -0.104 -0.183
Cl5 -0.873 1.402 -0.064
O6 -1.652 -1.462 -0.361
H7 0.026 -2.207 0.570

Atom - Atom Distances (Å)
  C1 C2 H3 Cl4 Cl5 O6 H7
C11.52601.08931.88851.83942.44342.1804
C21.52602.20432.72992.78621.22661.1027
H31.08932.20432.42142.42023.18332.5693
Cl41.88852.72992.42143.07903.72312.8592
Cl51.83942.78622.42023.07902.98353.7736
O62.44341.22663.18333.72312.98352.0587
H72.18041.10272.56932.85923.77362.0587

picture of dichloroacetaldehyde state 1 conformation 2
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