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All results from a given calculation for HCCl (Chloromethylene)

using model chemistry: HF/CEP-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
2 1 yes CS 3A"

State 1 (1A')

Jump to S2C1
Energy calculated at HF/CEP-31G*
 hartrees
Energy at 0K-20.629503
Energy at 298.15K-20.629380
HF Energy-20.629503
Nuclear repulsion energy12.186002
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 HF/CEP-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' 3240 2909 98.15      
2 A' 1326 1191 15.76      
3 A' 850 763 152.29      

Unscaled Zero Point Vibrational Energy (zpe) 2708.1 cm-1
Scaled (by 0.898) Zero Point Vibrational Energy (zpe) 2431.8 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 HF/CEP-31G*
ABC
16.19269 0.58369 0.56338

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.045 1.210 0.000
Cl2 0.045 -0.512 0.000
H3 -1.028 1.450 0.000

Atom - Atom Distances (Å)
  C1 Cl2 H3
C11.72231.0988
Cl21.72232.2359
H31.09882.2359

picture of Chloromethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl2 C1 H3 102.598
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.056      
2 Cl -0.083      
3 H 0.139      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.826 -0.073 0.000 1.828
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.957 -3.118 0.000
y -3.118 -19.505 0.000
z 0.000 0.000 -17.444
Traceless
 xyz
x -0.482 -3.118 0.000
y -3.118 -1.304 0.000
z 0.000 0.000 1.787
Polar
3z2-r23.573
x2-y20.548
xy-3.118
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.924 -0.316 0.000
y -0.316 4.475 0.000
z 0.000 0.000 1.902


<r2> (average value of r2) Å2
<r2> 22.512
(<r2>)1/2 4.745

State 2 (3A")

Jump to S1C1
Energy calculated at HF/CEP-31G*
 hartrees
Energy at 0K-20.653660
Energy at 298.15K-20.653529
HF Energy-20.653660
Nuclear repulsion energy12.139263
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 HF/CEP-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' 3421 3072 14.01      
2 A' 1074 965 3.13      
3 A' 912 819 57.26      

Unscaled Zero Point Vibrational Energy (zpe) 2703.4 cm-1
Scaled (by 0.898) Zero Point Vibrational Energy (zpe) 2427.7 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 HF/CEP-31G*
ABC
24.64754 0.57002 0.55713

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.037 1.182 0.000
Cl2 0.037 -0.523 0.000
H3 -0.851 1.798 0.000

Atom - Atom Distances (Å)
  C1 Cl2 H3
C11.70511.0808
Cl21.70512.4848
H31.08082.4848

picture of Chloromethylene state 2 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl2 C1 H3 124.713
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.120      
2 Cl -0.086      
3 H 0.206      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.800 1.044 0.000 1.316
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.815 -1.518 0.000
y -1.518 -16.080 0.000
z 0.000 0.000 -19.010
Traceless
 xyz
x -0.269 -1.518 0.000
y -1.518 2.333 0.000
z 0.000 0.000 -2.063
Polar
3z2-r2-4.127
x2-y2-1.735
xy-1.518
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.579 -0.195 0.000
y -0.195 4.028 0.000
z 0.000 0.000 1.348


<r2> (average value of r2) Å2
<r2> 22.490
(<r2>)1/2 4.742