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: CCSD=FULL/TZVP

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

Conformer 2 (C1)

Jump to S1C1
Energy calculated at CCSD=FULL/TZVP
 hartrees
Energy at 0K-1071.693419
Energy at 298.15K 
HF Energy-1070.798619
Nuclear repulsion energy265.861141
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=FULL/TZVP
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 3001 4.98      
2 A 3023 2864 48.72      
3 A 1850 1753 116.27      
4 A 1452 1375 14.34      
5 A 1309 1240 17.54      
6 A 1279 1212 12.46      
7 A 1055 1000 12.65      
8 A 960 910 5.82      
9 A 853 808 64.46      
10 A 663 628 25.78      
11 A 638 604 36.39      
12 A 351 332 0.94      
13 A 283 268 3.53      
14 A 226 215 2.76      
15 A 83 78 11.10      

Unscaled Zero Point Vibrational Energy (zpe) 8595.0 cm-1
Scaled (by 0.9475) Zero Point Vibrational Energy (zpe) 8143.8 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 CCSD=FULL/TZVP
ABC
0.12337 0.08979 0.05519

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD=FULL/TZVP

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.098 -0.021 0.523
C2 -0.692 -1.289 0.207
H3 0.222 0.063 1.599
Cl4 1.736 -0.239 -0.171
Cl5 -0.699 1.445 -0.057
O6 -1.764 -1.311 -0.329
H7 -0.174 -2.205 0.532

Atom - Atom Distances (Å)
  C1 C2 H3 Cl4 Cl5 O6 H7
C11.52731.08621.79271.76672.41982.2004
C21.52732.14522.67272.74651.19771.1012
H31.08622.14522.34892.34573.08962.5369
Cl41.79272.67272.34892.96333.66372.8294
Cl51.76672.74652.34572.96332.96663.7336
O62.41981.19773.08963.66372.96662.0163
H72.20041.10122.53692.82943.73362.0163

picture of dichloroacetaldehyde state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O6 124.802 C1 C2 H7 112.665
C2 C1 H3 109.168 C2 C1 Cl4 106.956
C2 C1 Cl5 112.775 H3 C1 Cl4 106.776
H3 C1 Cl5 108.242 Cl4 C1 Cl5 112.718
O6 C2 H7 122.531
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability