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All results from a given calculation for CHCl2CHO (dichloroacetaldehyde)

using model chemistry: CCSD/6-31G(2df,p)

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 CCSD/6-31G(2df,p)
Rotational Constants (cm-1) from geometry optimized at CCSD/6-31G(2df,p)
See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/6-31G(2df,p)
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C1)

Jump to S1C1
Energy calculated at CCSD/6-31G(2df,p)
 hartrees
Energy at 0K-1071.640835
Energy at 298.15K 
HF Energy-1070.723056
Nuclear repulsion energy266.799466
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 CCSD/6-31G(2df,p)
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 3168 2996 3.57      
2 A 3026 2861 38.96      
3 A 1871 1769 102.66      
4 A 1427 1350 15.03      
5 A 1300 1229 10.67      
6 A 1254 1185 14.42      
7 A 1059 1001 12.73      
8 A 963 910 6.63      
9 A 859 812 70.06      
10 A 668 632 28.96      
11 A 634 599 29.14      
12 A 352 333 1.09      
13 A 280 264 3.43      
14 A 225 213 2.90      
15 A 92 87 9.89      

Unscaled Zero Point Vibrational Energy (zpe) 8588.2 cm-1
Scaled (by 0.9455) Zero Point Vibrational Energy (zpe) 8120.2 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 CCSD/6-31G(2df,p)
ABC
0.12538 0.09000 0.05559

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/6-31G(2df,p)

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.102 -0.026 0.523
C2 -0.716 -1.279 0.195
H3 0.232 0.058 1.602
Cl4 1.728 -0.262 -0.170
Cl5 -0.668 1.443 -0.057
O6 -1.796 -1.263 -0.319
H7 -0.202 -2.210 0.491

Atom - Atom Distances (Å)
  C1 C2 H3 Cl4 Cl5 O6 H7
C11.53201.08921.78301.75772.41752.2051
C21.53202.15932.67222.73431.19611.1040
H31.08922.15932.34082.34113.08952.5620
Cl41.78302.67222.34082.94313.66652.8202
Cl51.75772.73432.34112.94312.94403.7233
O62.41751.19613.08953.66652.94402.0231
H72.20511.10402.56202.82023.72332.0231

picture of dichloroacetaldehyde state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O6 124.323 C1 C2 H7 112.540
C2 C1 H3 109.774 C2 C1 Cl4 107.192
C2 C1 Cl5 112.253 H3 C1 Cl4 106.667
H3 C1 Cl5 108.345 Cl4 C1 Cl5 112.450
O6 C2 H7 123.137
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability