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All results from a given calculation for CHCl2CHO (dichloroacetaldehyde)

using model chemistry: MP4/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at MP4/3-21G
 hartrees
Energy at 0K-1065.910063
Energy at 298.15K-1065.912316
HF Energy-1065.461317
Nuclear repulsion energy252.312381
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 MP4/3-21G
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' 3199 3103        
2 A' 2979 2889        
3 A' 1602 1554        
4 A' 1420 1377        
5 A' 1194 1158        
6 A' 984 955        
7 A' 708 687        
8 A' 391 380        
9 A' 291 283        
10 A' 226 220        
11 A" 1194 1158        
12 A" 1010 979        
13 A" 652 632        
14 A" 275 267        
15 A" 75 73        

Unscaled Zero Point Vibrational Energy (zpe) 8100.4 cm-1
Scaled (by 0.9698) Zero Point Vibrational Energy (zpe) 7855.8 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 MP4/3-21G
ABC
0.09534 0.08798 0.04807

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.345 0.259 0.000
C2 -0.945 1.095 0.000
H3 1.251 0.861 0.000
Cl4 0.345 -0.830 1.550
Cl5 0.345 -0.830 -1.550
O6 -0.939 2.343 0.000
H7 -1.856 0.473 0.000

Atom - Atom Distances (Å)
  C1 C2 H3 Cl4 Cl5 O6 H7
C11.53671.08851.89391.89392.44732.2110
C21.53672.20842.78732.78731.24761.1037
H31.08852.20842.46632.46632.64433.1315
Cl41.89392.78732.46633.09923.75682.9901
Cl51.89392.78732.46633.09923.75682.9901
O62.44731.24762.64433.75683.75682.0829
H72.21101.10373.13152.99012.99012.0829

picture of dichloroacetaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O6 122.705 C1 C2 H7 112.697
C2 C1 H3 113.442 C2 C1 Cl4 108.232
C2 C1 Cl5 108.232 H3 C1 Cl4 108.545
H3 C1 Cl5 108.545 Cl4 C1 Cl5 109.815
O6 C2 H7 124.598
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability