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 CH2ClCHO (chloroacetaldehyde)

using model chemistry: B3LYP/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 bisecting, trans 1A
Energy calculated at B3LYP/aug-cc-pVTZ
 hartrees
Energy at 0K-613.522272
Energy at 298.15K-613.525508
HF Energy-613.522272
Nuclear repulsion energy142.646695
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 B3LYP/aug-cc-pVTZ
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 3149 3047 0.50      
2 A 3070 2970 8.16      
3 A 2928 2833 54.25      
4 A 1807 1748 181.81      
5 A 1447 1400 11.70      
6 A 1405 1359 4.10      
7 A 1263 1222 17.11      
8 A 1190 1151 4.61      
9 A 1040 1006 33.02      
10 A 1025 991 5.26      
11 A 794 769 20.76      
12 A 694 671 18.20      
13 A 457 442 9.96      
14 A 281 271 10.83      
15 A 51 50 16.33      

Unscaled Zero Point Vibrational Energy (zpe) 10299.7 cm-1
Scaled (by 0.9675) Zero Point Vibrational Energy (zpe) 9964.9 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 B3LYP/aug-cc-pVTZ
ABC
1.01814 0.09022 0.08602

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/aug-cc-pVTZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.027 0.664 0.128
C2 1.173 -0.332 0.182
Cl3 -1.558 -0.163 -0.073
O4 2.274 -0.060 -0.200
H5 -0.010 1.218 1.066
H6 0.176 1.353 -0.697
H7 0.921 -1.323 0.606

Atom - Atom Distances (Å)
  C1 C2 Cl3 O4 H5 H6 H7
C11.51911.79912.38381.08931.08522.2302
C21.51912.74761.19762.14102.14591.1064
Cl31.79912.74763.83582.36582.38602.8194
O42.38381.19763.83582.90802.57792.0191
H51.08932.14102.36582.90801.77742.7449
H61.08522.14592.38602.57791.77743.0675
H72.23021.10642.81942.01912.74493.0675

picture of chloroacetaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O4 122.233 C1 C2 H7 115.404
C2 C1 Cl3 111.523 C2 C1 H5 109.223
C2 C1 H6 109.855 Cl3 C1 H5 107.427
Cl3 C1 H6 109.117 O4 C2 H7 122.362
H5 C1 H6 109.653
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability