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All results from a given calculation for HCCl (Chloromethylene)

using model chemistry: LSDA/3-21G*

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 LSDA/3-21G*
 hartrees
Energy at 0K-495.071384
Energy at 298.15K-495.071215
HF Energy-495.071384
Nuclear repulsion energy37.842175
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 LSDA/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' 2627 2580 110.07      
2 A' 1227 1205 16.75      
3 A' 733 720 91.89      

Unscaled Zero Point Vibrational Energy (zpe) 2293.6 cm-1
Scaled (by 0.982) Zero Point Vibrational Energy (zpe) 2252.3 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 LSDA/3-21G*
ABC
14.58913 0.57579 0.55393

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.047 1.221 0.000
Cl2 0.047 -0.515 0.000
H3 -1.081 1.436 0.000

Atom - Atom Distances (Å)
  C1 Cl2 H3
C11.73631.1487
Cl21.73632.2543
H31.14872.2543

picture of Chloromethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl2 C1 H3 100.807
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.287      
2 Cl 0.085      
3 H 0.203      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.586 -0.701 0.000 1.734
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.588 -2.618 0.000
y -2.618 -20.334 0.000
z 0.000 0.000 -18.104
Traceless
 xyz
x -0.369 -2.618 0.000
y -2.618 -1.488 0.000
z 0.000 0.000 1.856
Polar
3z2-r23.712
x2-y20.746
xy-2.618
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.361 -0.417 0.000
y -0.417 4.599 0.000
z 0.000 0.000 1.751


<r2> (average value of r2) Å2
<r2> 28.822
(<r2>)1/2 5.369

State 2 (3A")

Jump to S1C1
Energy calculated at LSDA/3-21G*
 hartrees
Energy at 0K-495.072692
Energy at 298.15K-495.072533
HF Energy-495.072692
Nuclear repulsion energy39.054578
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 LSDA/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' 939 922 17.25      
2 A' 887 871 33.51      
3 A' 3116 3060 4.83      

Unscaled Zero Point Vibrational Energy (zpe) 2471.0 cm-1
Scaled (by 0.982) Zero Point Vibrational Energy (zpe) 2426.5 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 LSDA/3-21G*
ABC
25.27312 0.59726 0.58347

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.037 1.148 0.000
Cl2 0.037 -0.511 0.000
H3 -0.844 1.802 0.000

Atom - Atom Distances (Å)
  C1 Cl2 H3
C11.65961.0965
Cl21.65962.4748
H31.09652.4748

picture of Chloromethylene state 2 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl2 C1 H3 126.570
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.336      
2 Cl 0.091      
3 H 0.245      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.947 0.147 0.000 0.958
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.350 -1.760 0.000
y -1.760 -17.232 0.000
z 0.000 0.000 -19.542
Traceless
 xyz
x 0.037 -1.760 0.000
y -1.760 1.714 0.000
z 0.000 0.000 -1.752
Polar
3z2-r2-3.503
x2-y2-1.118
xy-1.760
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.729 -0.237 0.000
y -0.237 4.228 0.000
z 0.000 0.000 1.290


<r2> (average value of r2) Å2
<r2> 27.821
(<r2>)1/2 5.275