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All results from a given calculation for CH2ClCHO (chloroacetaldehyde)

using model chemistry: HSEh1PBE/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 no C1 bisecting, trans 1A
1 2 yes CS eclipsed, cis 1A'

Conformer 1 (C1 bisecting, trans)

Jump to S1C2
Energy calculated at HSEh1PBE/3-21G*
 hartrees
Energy at 0K-610.172637
Energy at 298.15K-610.175920
HF Energy-610.172637
Nuclear repulsion energy142.241382
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 HSEh1PBE/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 3193 3065 0.33      
2 A 3106 2981 5.03      
3 A 2985 2866 60.74      
4 A 1770 1699 94.21      
5 A 1496 1436 19.24      
6 A 1438 1381 3.07      
7 A 1302 1250 11.17      
8 A 1230 1180 3.83      
9 A 1053 1010 3.11      
10 A 1028 987 44.15      
11 A 811 778 17.77      
12 A 717 688 17.71      
13 A 454 436 8.96      
14 A 291 279 10.18      
15 A 66 63 12.75      

Unscaled Zero Point Vibrational Energy (zpe) 10469.5 cm-1
Scaled (by 0.9599) Zero Point Vibrational Energy (zpe) 10049.7 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 HSEh1PBE/3-21G*
ABC
0.98052 0.09042 0.08618

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/3-21G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.015 0.694 0.130
C2 1.155 -0.305 0.221
Cl3 -1.541 -0.177 -0.081
O4 2.272 -0.092 -0.228
H5 -0.051 1.269 1.061
H6 0.175 1.371 -0.710
H7 0.878 -1.235 0.747

Atom - Atom Distances (Å)
  C1 C2 Cl3 O4 H5 H6 H7
C11.51881.79642.41711.09541.09052.2018
C21.51882.71631.22342.15332.15341.1037
Cl31.79642.71633.81762.36982.39502.7672
O42.41711.22343.81762.98532.60222.0503
H51.09542.15332.36982.98531.78792.6895
H61.09052.15342.39502.60221.78793.0672
H72.20181.10372.76722.05032.68953.0672

picture of chloroacetaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O4 123.277 C1 C2 H7 113.249
C2 C1 Cl3 109.760 C2 C1 H5 109.855
C2 C1 H6 110.155 Cl3 C1 H5 107.586
Cl3 C1 H6 109.687 O4 C2 H7 123.468
H5 C1 H6 109.757
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.647      
2 C 0.262      
3 Cl -0.026      
4 O -0.401      
5 H 0.300      
6 H 0.301      
7 H 0.212      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.510 0.814 1.044 1.419
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.654 -0.025 1.375
y -0.025 -28.336 0.003
z 1.375 0.003 -29.332
Traceless
 xyz
x -9.820 -0.025 1.375
y -0.025 5.657 0.003
z 1.375 0.003 4.162
Polar
3z2-r28.325
x2-y2-10.318
xy-0.025
xz1.375
yz0.003


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.219 0.533 -0.221
y 0.533 3.881 -0.236
z -0.221 -0.236 3.108


<r2> (average value of r2) Å2
<r2> 122.743
(<r2>)1/2 11.079

Conformer 2 (CS eclipsed, cis)

Jump to S1C1
Energy calculated at HSEh1PBE/3-21G*
 hartrees
Energy at 0K-610.173076
Energy at 298.15K-610.176577
HF Energy-610.173076
Nuclear repulsion energy146.613652
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 HSEh1PBE/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' 3090 2966 11.53      
2 A' 2942 2824 85.15      
3 A' 1789 1718 74.14      
4 A' 1486 1427 36.30      
5 A' 1434 1377 10.13      
6 A' 1318 1265 20.52      
7 A' 944 906 7.81      
8 A' 780 749 5.51      
9 A' 641 615 39.72      
10 A' 218 209 2.81      
11 A" 3141 3015 0.00      
12 A" 1252 1202 2.60      
13 A" 1057 1015 0.97      
14 A" 729 699 7.86      
15 A" 188 180 0.29      

Unscaled Zero Point Vibrational Energy (zpe) 10504.3 cm-1
Scaled (by 0.9599) Zero Point Vibrational Energy (zpe) 10083.1 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 HSEh1PBE/3-21G*
ABC
0.48944 0.12992 0.10469

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.944 0.000
C2 1.357 0.274 0.000
Cl3 -1.332 -0.238 0.000
O4 1.563 -0.929 0.000
H5 -0.087 1.580 0.888
H6 -0.087 1.580 -0.888
H7 2.173 1.022 0.000

Atom - Atom Distances (Å)
  C1 C2 Cl3 O4 H5 H6 H7
C11.51301.78062.43921.09611.09612.1739
C21.51302.73671.22042.14022.14021.1071
Cl31.78062.73672.97592.37602.37603.7240
O42.43921.22042.97593.13193.13192.0442
H51.09612.14022.37603.13191.77572.4912
H61.09612.14022.37603.13191.77572.4912
H72.17391.10713.72402.04422.49122.4912

picture of chloroacetaldehyde state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O4 126.007 C1 C2 H7 111.194
C2 C1 Cl3 112.132 C2 C1 H5 109.179
C2 C1 H6 109.179 Cl3 C1 H5 109.041
Cl3 C1 H6 109.041 O4 C2 H7 122.799
H5 C1 H6 108.187
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.656      
2 C 0.255      
3 Cl -0.002      
4 O -0.383      
5 H 0.293      
6 H 0.293      
7 H 0.200      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.807 3.469 0.000 3.562
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.211 3.531 0.000
y 3.531 -29.455 0.000
z 0.000 0.000 -29.412
Traceless
 xyz
x -2.778 3.531 0.000
y 3.531 1.356 0.000
z 0.000 0.000 1.421
Polar
3z2-r22.843
x2-y2-2.756
xy3.531
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.367 0.675 0.000
y 0.675 5.018 0.000
z 0.000 0.000 2.792


<r2> (average value of r2) Å2
<r2> 105.709
(<r2>)1/2 10.281