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

Conformer 2 (C1)

Jump to S1C1
Energy calculated at CCSD/aug-cc-pVDZ
 hartrees
Energy at 0K-1071.570024
Energy at 298.15K 
HF Energy-1070.768514
Nuclear repulsion energy264.353054
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/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 3131 3017 4.75      
2 A 3004 2894 40.37      
3 A 1817 1751 115.85      
4 A 1393 1342 13.20      
5 A 1273 1227 9.07      
6 A 1228 1183 12.93      
7 A 1044 1006 13.12      
8 A 945 910 4.03      
9 A 832 801 70.91      
10 A 652 629 31.86      
11 A 613 591 27.11      
12 A 348 335 1.08      
13 A 278 268 3.16      
14 A 221 213 3.19      
15 A 83 80 10.97      

Unscaled Zero Point Vibrational Energy (zpe) 8431.4 cm-1
Scaled (by 0.9634) Zero Point Vibrational Energy (zpe) 8122.8 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/aug-cc-pVDZ
ABC
0.12319 0.08831 0.05445

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.096 -0.033 0.523
C2 -0.734 -1.284 0.184
H3 0.223 0.046 1.612
Cl4 1.743 -0.280 -0.167
Cl5 -0.654 1.465 -0.058
O6 -1.836 -1.257 -0.309
H7 -0.217 -2.233 0.451

Atom - Atom Distances (Å)
  C1 C2 H3 Cl4 Cl5 O6 H7
C11.53821.09941.80231.77402.43382.2230
C21.53822.17342.69472.76071.20811.1137
H31.09942.17342.36222.36093.10342.5954
Cl41.80232.69472.36222.96703.71262.8348
Cl51.77402.76072.36092.96702.97873.7590
O62.43381.20813.10343.71262.97872.0380
H72.22301.11372.59542.83483.75902.0380

picture of dichloroacetaldehyde state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O6 124.364 C1 C2 H7 112.939
C2 C1 H3 109.855 C2 C1 Cl4 107.284
C2 C1 Cl5 112.728 H3 C1 Cl4 106.466
H3 C1 Cl5 108.201 Cl4 C1 Cl5 112.120
O6 C2 H7 122.693
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability