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All results from a given calculation for CBr2 (dibromomethylene)

using model chemistry: wB97X-D/cc-pVTZ

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 wB97X-D/cc-pVTZ
 hartrees
Energy at 0K-5186.507052
Energy at 298.15K-5186.512106
HF Energy-5186.507052
Nuclear repulsion energy 
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 wB97X-D/cc-pVTZ
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 625 597 15.16      
2 A1 203 194 0.53      
3 B2 690 659 333.41      

Unscaled Zero Point Vibrational Energy (zpe) 758.6 cm-1
Scaled (by 0.956) Zero Point Vibrational Energy (zpe) 725.2 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 wB97X-D/cc-pVTZ
ABC
1.30617 0.04488 0.04339

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.991
Br2 0.000 1.543 -0.085
Br3 0.000 -1.543 -0.085

Atom - Atom Distances (Å)
  C1 Br2 Br3
C11.88071.8807
Br21.88073.0854
Br31.88073.0854

picture of dibromomethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 C1 Br3 110.221
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.157      
2 Br 0.078      
3 Br 0.078      


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 -1.198 1.198
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -41.152 0.000 0.000
y 0.000 -39.276 0.000
z 0.000 0.000 -44.727
Traceless
 xyz
x 0.849 0.000 0.000
y 0.000 3.663 0.000
z 0.000 0.000 -4.513
Polar
3z2-r2-9.026
x2-y2-1.876
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.480 0.000 0.000
y 0.000 11.794 0.000
z 0.000 0.000 6.081


<r2> (average value of r2) Å2
<r2> 199.044
(<r2>)1/2 14.108

State 2 (3B1)

Jump to S1C1
Energy calculated at wB97X-D/cc-pVTZ
 hartrees
Energy at 0K-5186.489193
Energy at 298.15K-5186.494239
HF Energy-5186.489193
Nuclear repulsion energy 
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 wB97X-D/cc-pVTZ
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 535 511 0.19      
2 A1 187 179 0.08      
3 B2 898 858 154.90      

Unscaled Zero Point Vibrational Energy (zpe) 809.8 cm-1
Scaled (by 0.956) Zero Point Vibrational Energy (zpe) 774.1 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 wB97X-D/cc-pVTZ
ABC
2.53525 0.03894 0.03835

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.711
Br2 0.000 1.656 -0.061
Br3 0.000 -1.656 -0.061

Atom - Atom Distances (Å)
  C1 Br2 Br3
C11.82721.8272
Br21.82723.3121
Br31.82723.3121

picture of dibromomethylene state 2 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.181      
2 Br 0.091      
3 Br 0.091      


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 -0.492 0.492
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -42.635 0.000 0.000
y 0.000 -38.358 0.000
z 0.000 0.000 -42.007
Traceless
 xyz
x -2.453 0.000 0.000
y 0.000 3.963 0.000
z 0.000 0.000 -1.510
Polar
3z2-r2-3.020
x2-y2-4.277
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.432 0.000 0.000
y 0.000 11.192 0.000
z 0.000 0.000 5.302


<r2> (average value of r2) Å2
<r2> 220.883
(<r2>)1/2 14.862