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All results from a given calculation for CH2ClCHO (chloroacetaldehyde)

using model chemistry: ROHF/3-21G*

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 ROHF/3-21G*
 hartrees
Energy at 0K-608.871476
Energy at 298.15K-608.874906
HF Energy-608.871476
Nuclear repulsion energy143.044428
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 ROHF/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 3350 3043 0.27      
2 A 3269 2970 6.68      
3 A 3217 2923 45.30      
4 A 1924 1748 125.48      
5 A 1615 1467 15.56      
6 A 1550 1408 8.05      
7 A 1416 1286 17.33      
8 A 1332 1210 5.65      
9 A 1140 1036 2.09      
10 A 1087 988 41.25      
11 A 873 794 14.95      
12 A 756 686 34.08      
13 A 482 438 14.66      
14 A 320 291 12.27      
15 A 73 66 18.90      

Unscaled Zero Point Vibrational Energy (zpe) 11201.1 cm-1
Scaled (by 0.9085) Zero Point Vibrational Energy (zpe) 10176.2 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 ROHF/3-21G*
ABC
0.96727 0.09150 0.08736

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.021 0.699 0.133
C2 1.160 -0.294 0.242
Cl3 -1.534 -0.180 -0.083
O4 2.244 -0.101 -0.247
H5 -0.062 1.276 1.042
H6 0.175 1.352 -0.708
H7 0.927 -1.184 0.811

Atom - Atom Distances (Å)
  C1 C2 Cl3 O4 H5 H6 H7
C11.51461.79992.39291.07991.07592.1966
C21.51462.71681.20472.14432.14041.0826
Cl31.79992.71683.78312.35692.37862.8046
O42.39291.20473.78312.97962.57022.0076
H51.07992.14432.35692.97961.76762.6614
H61.07592.14042.37862.57021.76763.0504
H72.19661.08262.80462.00762.66143.0504

picture of chloroacetaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O4 122.869 C1 C2 H7 114.480
C2 C1 Cl3 109.802 C2 C1 H5 110.352
C2 C1 H6 110.281 Cl3 C1 H5 107.194
Cl3 C1 H6 108.993 O4 C2 H7 122.643
H5 C1 H6 110.158
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at ROHF/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.619      
2 C 0.360      
3 Cl -0.061      
4 O -0.500      
5 H 0.294      
6 H 0.303      
7 H 0.222      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.696 0.807 1.323 1.698
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -40.564 -0.122 1.874
y -0.122 -28.583 -0.108
z 1.874 -0.108 -29.649
Traceless
 xyz
x -11.448 -0.122 1.874
y -0.122 6.524 -0.108
z 1.874 -0.108 4.925
Polar
3z2-r29.850
x2-y2-11.981
xy-0.122
xz1.874
yz-0.108


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


<r2> (average value of r2) Å2
<r2> 122.112
(<r2>)1/2 11.050