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All results from a given calculation for CBr2 (dibromomethylene)

using model chemistry: B97D3/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
2 1 yes C2V 3B1

State 1 (1A1)

Jump to S2C1
Energy calculated at B97D3/6-311G**
 hartrees
Energy at 0K-5188.870399
Energy at 298.15K-5188.875310
HF Energy-5188.870399
Nuclear repulsion energy318.829341
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 B97D3/6-311G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 570 562 17.10      
2 A1 179 177 0.76      
3 B2 560 552 343.79      

Unscaled Zero Point Vibrational Energy (zpe) 654.2 cm-1
Scaled (by 0.9857) Zero Point Vibrational Energy (zpe) 644.8 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 B97D3/6-311G**
ABC
1.24286 0.04228 0.04089

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-311G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.016
Br2 0.000 1.589 -0.087
Br3 0.000 -1.589 -0.087

Atom - Atom Distances (Å)
  C1 Br2 Br3
C11.93451.9345
Br21.93453.1786
Br31.93453.1786

picture of dibromomethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 C1 Br3 110.486
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.191      
2 Br 0.095      
3 Br 0.095      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -1.078 1.078
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -41.051 0.000 0.000
y 0.000 -39.645 0.000
z 0.000 0.000 -44.310
Traceless
 xyz
x 0.926 0.000 0.000
y 0.000 3.036 0.000
z 0.000 0.000 -3.962
Polar
3z2-r2-7.923
x2-y2-1.407
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.348 0.000 0.000
y 0.000 12.012 0.000
z 0.000 0.000 5.369


<r2> (average value of r2) Å2
<r2> 209.562
(<r2>)1/2 14.476

State 2 (3B1)

Jump to S1C1
Energy calculated at B97D3/6-311G**
 hartrees
Energy at 0K-5188.845108
Energy at 298.15K-5188.850092
HF Energy-5188.845108
Nuclear repulsion energy312.883333
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 B97D3/6-311G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 504 497 0.04      
2 A1 180 177 0.26      
3 B2 807 796 187.25      

Unscaled Zero Point Vibrational Energy (zpe) 745.2 cm-1
Scaled (by 0.9857) Zero Point Vibrational Energy (zpe) 734.6 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 B97D3/6-311G**
ABC
2.42355 0.03790 0.03732

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-311G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.727
Br2 0.000 1.679 -0.062
Br3 0.000 -1.679 -0.062

Atom - Atom Distances (Å)
  C1 Br2 Br3
C11.85521.8552
Br21.85523.3574
Br31.85523.3574

picture of dibromomethylene state 2 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.257      
2 Br 0.129      
3 Br 0.129      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -0.662 0.662
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -42.584 0.000 0.000
y 0.000 -37.886 0.000
z 0.000 0.000 -41.913
Traceless
 xyz
x -2.684 0.000 0.000
y 0.000 4.363 0.000
z 0.000 0.000 -1.678
Polar
3z2-r2-3.357
x2-y2-4.698
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.277 0.000 0.000
y 0.000 11.217 0.000
z 0.000 0.000 4.353


<r2> (average value of r2) Å2
<r2> 226.184
(<r2>)1/2 15.039