return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for HCCl (Chloromethylene)

using model chemistry: M06-2X/6-31+G**

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 M06-2X/6-31+G**
 hartrees
Energy at 0K-498.709136
Energy at 298.15K-498.708992
HF Energy-498.709136
Nuclear repulsion energy38.560299
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 M06-2X/6-31+G**
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' 2978 2835 76.89      
2 A' 1244 1185 15.17      
3 A' 792 754 139.58      

Unscaled Zero Point Vibrational Energy (zpe) 2507.0 cm-1
Scaled (by 0.9522) Zero Point Vibrational Energy (zpe) 2387.1 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 M06-2X/6-31+G**
ABC
15.72442 0.59573 0.57398

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.045 1.199 0.000
Cl2 0.045 -0.507 0.000
H3 -1.042 1.424 0.000

Atom - Atom Distances (Å)
  C1 Cl2 H3
C11.70581.1106
Cl21.70582.2163
H31.11062.2163

picture of Chloromethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl2 C1 H3 101.703
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.242      
2 Cl 0.094      
3 H 0.148      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.666 -0.547 0.000 1.753
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.796 -2.953 0.000
y -2.953 -20.636 0.000
z 0.000 0.000 -18.251
Traceless
 xyz
x -0.353 -2.953 0.000
y -2.953 -1.612 0.000
z 0.000 0.000 1.965
Polar
3z2-r23.930
x2-y20.840
xy-2.953
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.826 -0.164 0.000
y -0.164 5.127 0.000
z 0.000 0.000 2.390


<r2> (average value of r2) Å2
<r2> 28.372
(<r2>)1/2 5.327

State 2 (3A")

Jump to S1C1
Energy calculated at M06-2X/6-31+G**
 hartrees
Energy at 0K-498.706395
Energy at 298.15K-498.706253
HF Energy-498.706395
Nuclear repulsion energy38.843412
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 M06-2X/6-31+G**
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' 995 947 1.23      
2 A' 909 866 55.83      
3 A' 3275 3118 7.39      

Unscaled Zero Point Vibrational Energy (zpe) 2589.2 cm-1
Scaled (by 0.9522) Zero Point Vibrational Energy (zpe) 2465.5 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 M06-2X/6-31+G**
ABC
25.70009 0.58946 0.57625

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.036 1.158 0.000
Cl2 0.036 -0.515 0.000
H3 -0.836 1.799 0.000

Atom - Atom Distances (Å)
  C1 Cl2 H3
C11.67261.0821
Cl21.67262.4721
H31.08212.4721

picture of Chloromethylene state 2 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl2 C1 H3 126.296
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.275      
2 Cl 0.077      
3 H 0.198      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.813 0.538 0.000 0.975
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.642 -1.589 0.000
y -1.589 -17.295 0.000
z 0.000 0.000 -19.864
Traceless
 xyz
x -0.063 -1.589 0.000
y -1.589 1.959 0.000
z 0.000 0.000 -1.896
Polar
3z2-r2-3.791
x2-y2-1.348
xy-1.589
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.312 -0.130 0.000
y -0.130 4.606 0.000
z 0.000 0.000 2.191


<r2> (average value of r2) Å2
<r2> 28.129
(<r2>)1/2 5.304