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All results from a given calculation for CH2ClCHO (chloroacetaldehyde)

using model chemistry: ROHF/6-31G

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/6-31G
 hartrees
Energy at 0K-611.716026
Energy at 298.15K-611.719428
HF Energy-611.716026
Nuclear repulsion energy141.477868
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/6-31G
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 3387 3033 0.34      
2 A 3296 2951 6.75      
3 A 3272 2930 31.73      
4 A 1916 1716 154.23      
5 A 1609 1441 15.64      
6 A 1547 1385 13.16      
7 A 1412 1264 31.30      
8 A 1318 1180 7.25      
9 A 1154 1033 24.49      
10 A 1128 1010 5.47      
11 A 883 791 16.97      
12 A 740 662 51.56      
13 A 484 433 20.01      
14 A 308 276 15.67      
15 A 63 57 27.03      

Unscaled Zero Point Vibrational Energy (zpe) 11258.1 cm-1
Scaled (by 0.8953) Zero Point Vibrational Energy (zpe) 10079.4 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/6-31G
ABC
0.97965 0.08888 0.08486

See section I.F.4 to change rotational constant units
Geometric Data calculated at ROHF/6-31G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.064 0.695 0.136
C2 1.171 -0.311 0.228
Cl3 -1.569 -0.172 -0.080
O4 2.266 -0.095 -0.239
H5 -0.026 1.264 1.047
H6 0.195 1.346 -0.708
H7 0.953 -1.231 0.752

Atom - Atom Distances (Å)
  C1 C2 Cl3 O4 H5 H6 H7
C11.49881.86132.36911.07751.07432.2090
C21.49882.76041.20992.14132.13921.0811
Cl31.86132.76043.83882.38972.41062.8585
O42.36911.20993.83882.95852.56631.9996
H51.07752.14132.38972.95851.77072.6967
H61.07432.13922.41062.56631.77073.0578
H72.20901.08112.85851.99962.69673.0578

picture of chloroacetaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O4 121.639 C1 C2 H7 116.871
C2 C1 Cl3 110.008 C2 C1 H5 111.383
C2 C1 H6 111.416 Cl3 C1 H5 105.696
Cl3 C1 H6 107.347 O4 C2 H7 121.475
H5 C1 H6 110.753
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at ROHF/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.550      
2 C 0.349      
3 Cl -0.047      
4 O -0.475      
5 H 0.257      
6 H 0.267      
7 H 0.199      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.637 0.872 1.470 1.824
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -42.948 -0.558 2.030
y -0.558 -28.364 -0.176
z 2.030 -0.176 -29.586
Traceless
 xyz
x -13.973 -0.558 2.030
y -0.558 7.903 -0.176
z 2.030 -0.176 6.070
Polar
3z2-r212.141
x2-y2-14.584
xy-0.558
xz2.030
yz-0.176


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> 125.249
(<r2>)1/2 11.191